{ "schema": "nodefusion.education-recording/1", "course": "2026A", "chapter": 6, "variant": "basic-observed", "run": "ucore-2026A-ch6-basic-observed", "html": "ucore-2026A-ch6-basic-observed.html", "source": { "kernel_commit": "df045c4455f2dacb81caf39510aed994bf49ade7", "kernel_patch": "diff --git a/Makefile b/Makefile\nindex c335803..cfe7d0c 100644\n--- a/Makefile\n+++ b/Makefile\n@@ -16,7 +16,7 @@ GDB = $(TOOLPREFIX)gdb\n CP = cp\n BUILDDIR = build\n C_SRCS = $(wildcard $K/*.c)\n-AS_SRCS = $(wildcard $K/*.S)\n+AS_SRCS := $(wildcard $K/*.S)\n C_OBJS = $(addprefix $(BUILDDIR)/, $(addsuffix .o, $(basename $(C_SRCS))))\n AS_OBJS = $(addprefix $(BUILDDIR)/, $(addsuffix .o, $(basename $(AS_SRCS))))\n OBJS = $(C_OBJS) $(AS_OBJS)\ndiff --git a/os/kalloc.c b/os/kalloc.c\nindex 3c7c48b..5bea13e 100644\n--- a/os/kalloc.c\n+++ b/os/kalloc.c\n@@ -1,6 +1,7 @@\n #include \"kalloc.h\"\n #include \"defs.h\"\n #include \"riscv.h\"\n+#include \"nftrace.h\"\n \n extern char ekernel[];\n \n@@ -12,6 +13,10 @@ struct {\n \tstruct linklist *freelist;\n } kmem;\n \n+static uint64 nf_free_pages;\n+static uint64 nf_used_pages;\n+static int nftrace_ready;\n+\n void freerange(void *pa_start, void *pa_end)\n {\n \tchar *p;\n@@ -23,6 +28,8 @@ void freerange(void *pa_start, void *pa_end)\n void kinit()\n {\n \tfreerange(ekernel, (void *)PHYSTOP);\n+\tnftrace_ready = 1;\n+\tnftrace_allocator_state(nf_free_pages, nf_used_pages);\n }\n \n // Free the page of physical memory pointed at by v,\n@@ -40,6 +47,11 @@ void kfree(void *pa)\n \tl = (struct linklist *)pa;\n \tl->next = kmem.freelist;\n \tkmem.freelist = l;\n+\tnf_free_pages++;\n+\tif (nftrace_ready) {\n+\t\tnf_used_pages--;\n+\t\tnftrace_page_free((uint64)pa, nf_free_pages, nf_used_pages);\n+\t}\n }\n \n // Allocate one 4096-byte page of physical memory.\n@@ -51,7 +63,11 @@ void *kalloc()\n \tl = kmem.freelist;\n \tif (l) {\n \t\tkmem.freelist = l->next;\n+\t\tnf_free_pages--;\n+\t\tnf_used_pages++;\n \t\tmemset((char *)l, 5, PGSIZE); // fill with junk\n \t}\n+\tif (nftrace_ready)\n+\t\tnftrace_page_alloc((uint64)l, nf_free_pages, nf_used_pages);\n \treturn (void *)l;\n-}\n\\ No newline at end of file\n+}\ndiff --git a/os/nftrace.c b/os/nftrace.c\nnew file mode 100644\nindex 0000000..8d99129\n--- /dev/null\n+++ b/os/nftrace.c\n@@ -0,0 +1,39 @@\n+#include \"nftrace.h\"\n+\n+__attribute__((noinline))\n+void nftrace_commit_point(const struct nftrace_record *record)\n+{\n+\tif (record != 0)\n+\t\t__asm__ volatile(\"\" : : \"r\"(*(volatile const uint64 *)record) : \"memory\");\n+}\n+\n+static inline void emit(uint64 type, uint64 a0, uint64 a1, uint64 a2, uint64 a3)\n+{\n+\tconst struct nftrace_record record = { type, { a0, a1, a2, a3 } };\n+\tnftrace_commit_point(&record);\n+}\n+\n+void nftrace_page_alloc(uint64 pa, uint64 free_pages, uint64 used_pages)\n+{\n+\temit(1, pa, 1, free_pages, used_pages);\n+}\n+\n+void nftrace_page_free(uint64 pa, uint64 free_pages, uint64 used_pages)\n+{\n+\temit(5, pa, 1, free_pages, used_pages);\n+}\n+\n+void nftrace_allocator_state(uint64 free_pages, uint64 used_pages)\n+{\n+\temit(6, free_pages, used_pages, 0, 0);\n+}\n+\n+void nftrace_proc_fork(uint64 parent, uint64 child)\n+{\n+\temit(2, parent, child, 0, 0);\n+}\n+\n+void nftrace_sched_switch(uint64 from_task, uint64 to_task, uint64 from_pid, uint64 to_pid)\n+{\n+\temit(4, from_task, to_task, from_pid, to_pid);\n+}\ndiff --git a/os/nftrace.h b/os/nftrace.h\nnew file mode 100644\nindex 0000000..e1428ae\n--- /dev/null\n+++ b/os/nftrace.h\n@@ -0,0 +1,18 @@\n+#ifndef NFTRACE_H\n+#define NFTRACE_H\n+\n+#include \"types.h\"\n+\n+struct nftrace_record {\n+\tuint64 type;\n+\tuint64 a[4];\n+};\n+\n+void nftrace_commit_point(const struct nftrace_record *record);\n+void nftrace_page_alloc(uint64 pa, uint64 free_pages, uint64 used_pages);\n+void nftrace_page_free(uint64 pa, uint64 free_pages, uint64 used_pages);\n+void nftrace_allocator_state(uint64 free_pages, uint64 used_pages);\n+void nftrace_proc_fork(uint64 parent, uint64 child);\n+void nftrace_sched_switch(uint64 from_task, uint64 to_task, uint64 from_pid, uint64 to_pid);\n+\n+#endif\ndiff --git a/os/proc.c b/os/proc.c\nindex 6aa7fbb..e394800 100644\n--- a/os/proc.c\n+++ b/os/proc.c\n@@ -4,6 +4,7 @@\n #include \"trap.h\"\n #include \"vm.h\"\n #include \"queue.h\"\n+#include \"nftrace.h\"\n \n struct proc pool[NPROC];\n __attribute__((aligned(16))) char kstack[NPROC][PAGE_SIZE];\n@@ -145,6 +146,7 @@ void scheduler()\n \t\ttracef(\"swtich to proc %d\", p - pool);\n \t\tp->state = RUNNING;\n \t\tcurrent_proc = p;\n+\t\tnftrace_sched_switch((uint64)&idle, (uint64)p, (uint64)-1, p->pid);\n \t\tswtch(&idle.context, &p->context);\n \t}\n }\n@@ -161,6 +163,7 @@ void sched()\n \tstruct proc *p = curr_proc();\n \tif (p->state == RUNNING)\n \t\tpanic(\"sched running\");\n+\tnftrace_sched_switch((uint64)p, (uint64)&idle, p->pid, (uint64)-1);\n \tswtch(&p->context, &idle.context);\n }\n \n@@ -227,6 +230,7 @@ int fork()\n \tnp->parent = p;\n \tnp->state = RUNNABLE;\n \tadd_task(np);\n+\tnftrace_proc_fork(p->pid, np->pid);\n \treturn np->pid;\n }\n \ndiff --git a/os/vm.c b/os/vm.c\nindex 8e20fab..5b5a5e1 100644\n--- a/os/vm.c\n+++ b/os/vm.c\n@@ -3,6 +3,12 @@\n #include \"plic.h\"\n #include \"riscv.h\"\n \n+__attribute__((noinline))\n+void nodefusion_pagetable_map(uint64 va, uint64 pa, uint64 flags)\n+{\n+\t__asm__ volatile(\"\" : : \"r\"(va), \"r\"(pa), \"r\"(flags) : \"memory\");\n+}\n+\n pagetable_t kernel_pagetable;\n \n extern char e_text[]; // kernel.ld sets this to end of kernel code.\n@@ -131,6 +137,7 @@ int mappages(pagetable_t pagetable, uint64 va, uint64 size, uint64 pa, int perm)\n \t\t\treturn -1;\n \t\t}\n \t\t*pte = PA2PTE(pa) | perm | PTE_V;\n+\t\tnodefusion_pagetable_map(a, pa, perm | PTE_V);\n \t\tif (a == last)\n \t\t\tbreak;\n \t\ta += PGSIZE;\n@@ -407,4 +414,3 @@ uint64 uvmdealloc(pagetable_t pagetable, uint64 oldsz, uint64 newsz)\n \n return newsz;\n }\n-\n", "user_commit": "1733f460c596b013b1c509ad42afa428640783b0", "user_patch": "diff --git a/CMakeLists.txt b/CMakeLists.txt\nindex f5a9fac..ab1986d 100644\n--- a/CMakeLists.txt\n+++ b/CMakeLists.txt\n@@ -15,12 +15,12 @@ set(ASM_DIR asm)\n set(BIN_DIR bin)\n \n # Toolchain\n-set(PREFIX ${ARCH}-linux-musl-)\n+set(PREFIX ${ARCH}-linux-musl- CACHE STRING \"Cross compiler prefix\")\n \n if (${ARCH} STREQUAL riscv32)\n- set(CMAKE_C_FLAGS \"-march=rv32imac -mabi=ilp32 -mcmodel=medany\")\n+ set(CMAKE_C_FLAGS \"-march=rv32imac_zicsr_zifencei -mabi=ilp32 -mcmodel=medany\")\n elseif (${ARCH} STREQUAL riscv64)\n- set(CMAKE_C_FLAGS \"-march=rv64imac -mabi=lp64 -mcmodel=medany\")\n+ set(CMAKE_C_FLAGS \"-march=rv64imac_zicsr_zifencei -mabi=lp64 -mcmodel=medany\")\n else()\n message(\"Unsupported arch: ${ARCH}\")\n endif ()\ndiff --git a/Makefile b/Makefile\nindex be632ac..64f1ab6 100644\n--- a/Makefile\n+++ b/Makefile\n@@ -7,15 +7,16 @@ app_dir = src\n elf_dir := build/$(ARCH)\n bin_dir := build/bin\n out_dir := target\n-cmake_build_args := -DARCH=$(ARCH) -DCHAPTER=$(CHAPTER)\n+TOOLPREFIX ?= $(ARCH)-linux-musl-\n+cmake_build_args := -DARCH=$(ARCH) -DCHAPTER=$(CHAPTER) -DPREFIX=$(TOOLPREFIX)\n ifeq ($(MODE), release)\n cmake_build_args += -DCMAKE_BUILD_TYPE=Release\n else ifeq ($(MODE), debug)\n cmake_build_args += -DCMAKE_BUILD_TYPE=Debug\n endif\n \n-OBJCOPY := $(ARCH)-linux-musl-objcopy\n-OBJDUMP := $(ARCH)-linux-musl-objdump\n+OBJCOPY := $(TOOLPREFIX)objcopy\n+OBJDUMP := $(TOOLPREFIX)objdump\n CP := cp\n CH_TESTS := \n \ndiff --git a/src/ch6b_exec.c b/src/ch6b_exec.c\nindex 1a1d9c6..b67cf35 100644\n--- a/src/ch6b_exec.c\n+++ b/src/ch6b_exec.c\n@@ -5,7 +5,7 @@\n int main()\n {\n \tchar *_argv[] = {\n-\t\t\"(*o*)\", \"(>.<)\", \"(O.O)\", \"(QwQ)\", \"orz\", \"没有了呀\"\n+\t\t\"(*o*)\", \"(>.<)\", \"(O.O)\", \"(QwQ)\", \"orz\", \"没有了呀\", NULL\n \t};\n \texec(\"ch6b_args\", _argv);\n \treturn 0;\ndiff --git a/src/ch6b_filetest_simple.c b/src/ch6b_filetest_simple.c\nindex 062cecf..a27e982 100644\n--- a/src/ch6b_filetest_simple.c\n+++ b/src/ch6b_filetest_simple.c\n@@ -15,7 +15,9 @@ int main()\n \tfd = open(filea, O_RDONLY);\n \tassert(fd > 0);\n \tchar buf[16];\n-\tread(fd, buf, 16);\n+\tint nread = read(fd, buf, sizeof(buf) - 1);\n+\tassert_eq(nread, strlen(s));\n+\tbuf[nread] = '\\0';\n \tclose(fd);\n \tassert(strcmp(s, buf) == 0);\n \tputs(\"file_test passed!\");\ndiff --git a/src/ch6b_usertest.c b/src/ch6b_usertest.c\nindex cdd9fc8..1cb5f3a 100644\n--- a/src/ch6b_usertest.c\n+++ b/src/ch6b_usertest.c\n@@ -11,7 +11,7 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\",\t \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_getpid\\0\",\t \"ch5b_forktest0\\0\",\n \t\"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\", \"ch5b_exit\\0\",\n-\t\"ch6b_filetest\\0\", \"ch6b_exec\\0\",\n+\t\"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\",\n };\n \n int main()\ndiff --git a/src/ch7b_usertest.c b/src/ch7b_usertest.c\nindex 1f634d4..8bfc7c8 100644\n--- a/src/ch7b_usertest.c\n+++ b/src/ch7b_usertest.c\n@@ -10,7 +10,7 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\",\t \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_exit\\0\",\t \"ch5b_getpid\\0\",\n \t\"ch5b_forktest0\\0\", \"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\",\n-\t\"ch5b_exit\\0\",\t \"ch6b_filetest\\0\", \"ch6b_exec\\0\",\n+\t\"ch5b_exit\\0\",\t \"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\",\n \t\"ch7b_pipetest\\0\",\n };\n \ndiff --git a/src/ch8b_usertest.c b/src/ch8b_usertest.c\nindex 1cce5ce..f088c38 100644\n--- a/src/ch8b_usertest.c\n+++ b/src/ch8b_usertest.c\n@@ -10,9 +10,9 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\", \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_getpid\\0\", \"ch5b_forktest0\\0\",\n \t\"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\", \"ch5b_exit\\0\",\n-\t\"ch6b_filetest\\0\", \"ch6b_exec\\0\", \"ch7b_pipetest\\0\",\n+\t\"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\", \"ch7b_pipetest\\0\",\n \t\"ch8b_mpsc_sem\\0\",\n-\t\"ch8b_mut_phi_din.c\", \"ch8b_mut_race\\0\", \"ch8b_sync_sem\\0\",\n+\t \"ch8b_mut_race\\0\", \"ch8b_sync_sem\\0\",\n \t\"ch8b_test_condvar\\0\", \"ch8b_threads_arg\\0\", \"ch8b_threads\\0\", \n \t\"ch8b_spin_mut_race\\0\", \"ch8b_mut_phi_din\\0\",\n };\n", "nodefusion_commit": "bce9de05d36d5cdd0afc71121e7c9b1016c08664", "nodefusion_runtime_overrides": [ { "path": "nodefusion/host/analyze.py", "sha256": "310d26f5c89334c05ee697bb5709a8e8bbce140bcb67f2d3450a09232a3d38b7", "patch": "diff --git a/nodefusion/host/analyze.py b/nodefusion/host/analyze.py\nindex a6ca1e7..7108a60 100644\n--- a/nodefusion/host/analyze.py\n+++ b/nodefusion/host/analyze.py\n@@ -642,6 +642,12 @@ class Analysis:\n from ..model.manifest import _COMPLETENESS\n from ..model.snapshot import _completeness\n got = _completeness(res.sources)[\"completeness\"]\n+ if got == \"total\":\n+ from ..model.resolve import PRESENT\n+ contexts = [field for entity in ents.res.entities if entity.sources\n+ for field in entity.fields if field.role == \"sched_context\"]\n+ if not any(field.state == PRESENT for field in contexts):\n+ return None\n return _COMPLETENESS.get(got)\n \n def _task_by_ctx(self, state_idx: int, ctx: int):\n@@ -745,6 +751,7 @@ class Analysis:\n return self.states[i].ticks if i >= 0 else None\n \n cur_slot: dict[int, int | None] = {c: None for c in range(self.ncpu)}\n+ self._semantic_current: dict[int, tuple[int | None, str | None]] = {}\n \n merged = heapq.merge(\n ((d.insn, 0, \"discon\", d) for d in tr.discons),\n@@ -889,7 +896,6 @@ class Analysis:\n unknown=[] if outcome is not None else [\"outcome\"])\n \n if r.type == self.NFT_SCHED_SWITCH:\n- pid, proc = self._attribute(r.cpu, si, cur_slot)\n detail = {\"source\": \"nftrace\"}\n for end, task_id, visible_id in (\n (\"from\", r.a[0], r.a[2]), (\"to\", r.a[1], r.a[3])):\n@@ -900,6 +906,12 @@ class Analysis:\n else:\n detail[f\"{end}_pid\"] = visible_id\n detail[f\"{end}_proc\"] = f\"task#{visible_id}\"\n+ # Entry-based switches are suppressed when this channel exists.\n+ # Retain its authoritative destination independently of snapshot slots.\n+ if not hasattr(self, \"_semantic_current\"):\n+ self._semantic_current = {}\n+ pid, proc = detail[\"to_pid\"], detail[\"to_proc\"]\n+ self._semantic_current[r.cpu] = (pid, proc)\n return Event(\n insn=r.insn, cpu=r.cpu, kind=SWITCH_EVENT,\n resource=\"scheduler\", pid=pid, proc=proc, pc=None,\n@@ -924,6 +936,9 @@ class Analysis:\n \"source\": \"nftrace\"}, unknown=[])\n \n def _attribute(self, cpu: int, si: int, cur_slot: dict) -> tuple[int | None, str | None]:\n+ current = getattr(self, \"_semantic_current\", {})\n+ if cpu in current:\n+ return current[cpu]\n slot = cur_slot.get(cpu)\n if slot is None:\n return None, None\n" }, { "path": "nodefusion/host/record.py", "sha256": "ed6668c5711bcddff0e30a4b82eaf9235e6700746ce186042e39e45219b55428", "patch": "diff --git a/nodefusion/host/record.py b/nodefusion/host/record.py\nindex ac7695e..93323e0 100644\n--- a/nodefusion/host/record.py\n+++ b/nodefusion/host/record.py\n@@ -399,6 +399,10 @@ class Recorder:\n f\"内核自己按顺序跑完所有应用，没有地方喂命令。\")\n \n \n+ @property\n+ def interactive_workload(self) -> bool:\n+ return self.profile.interactive and bool(self.cfg.program) and self.cfg.program != NO_PROGRAM\n+\n def effective_lab_stage(self) -> int | None:\n if self.cfg.lab_stage is not None:\n return self.cfg.lab_stage\n@@ -445,8 +449,7 @@ class Recorder:\n f\"--no-build：这次没有编译，直接用了现成的 \"\n f\"{self.kernel_elf_path}（修改时间 \"\n f\"{mt.strftime('%Y-%m-%d %H:%M UTC')}）。\"\n- \"也就是说**没人验证过这份二进制是当前源码编出来的**；\"\n- \"它可能是任何时候留下的。ELF 指纹见 kernel_elf_identity。\")\n+ \"ELF 校验和见 kernel_elf_identity。\")\n return \"(--no-build：跳过构建)\"\n \n mv = self._make_var_string()\n@@ -571,7 +574,7 @@ class Recorder:\n \n outcome = \"unknown\"\n try:\n- if not self.profile.interactive:\n+ if not self.interactive_workload:\n outcome = self._drive_headless(proc, reader)\n else:\n outcome = self._drive_shell(proc, reader)\n@@ -738,7 +741,7 @@ class Recorder:\n # An interactive shell's exec sequence cannot identify the host\n # command without a dedicated marker.\n prog_start = _program_start_from_trace(\n- tr, wl_json, interactive=self.profile.interactive)\n+ tr, wl_json, interactive=self.interactive_workload)\n tmp_trace.unlink(missing_ok=True)\n if total <= 0:\n raise RecordError(\n@@ -835,7 +838,7 @@ class Recorder:\n calibration_path, calibration_wl.to_json())\n \n focus_start = _snapshot_focus_start(\n- prog_start, calibrated_total, interactive=self.profile.interactive)\n+ prog_start, calibrated_total, interactive=self.interactive_workload)\n \n if c.snap_insns is not None:\n snap_insns = c.snap_insns\n@@ -909,7 +912,7 @@ class Recorder:\n \"snap_start_insn\": snap_start,\n \"program_start_insn\": prog_start,\n \"snapshot_focus\": (\"interactive_tail_15pct\" if\n- self.profile.interactive and not prog_start and\n+ self.interactive_workload and not prog_start and\n c.snap_start is None and calibrated_total else\n \"program_boundary\" if prog_start else \"uniform\"),\n \"calibrated_total_insns\": calibrated_total,\n" }, { "path": "nodefusion/manifests/rcore.toml", "sha256": "4a6c4746a885ce7ed68a374516188f02d5955028c94ecfa7e73c5ddf08b73e75", "patch": "diff --git a/nodefusion/manifests/rcore.toml b/nodefusion/manifests/rcore.toml\nindex 3579114..01e843c 100644\n--- a/nodefusion/manifests/rcore.toml\n+++ b/nodefusion/manifests/rcore.toml\n@@ -174,12 +174,7 @@ kind = \"batch\"\n completeness = \"none\"\n when = { type_exists = \"os::batch::AppManager\" }\n reason = \"ch2 是批处理，没有任务表；只有当前应用序号\"\n-steps = [\n-\n-\n- { static = \"os::batch::APP_MANAGER\" },\n- { unwrap = [\"Lazy\", \"UPSafeCell\"] },\n-]\n+steps = []\n \n # ch1 has neither TaskControlBlock nor AppManager. This source records that\n # structural absence explicitly; it intentionally enumerates no entities.\n@@ -213,8 +208,12 @@ base = { path = \"base_size\", reader = \"usize\" }\n # address, which the page-table walk then reported as \"not in observed\n # physical memory\" -- a unit error that reads like missing memory.\n # `.__0` rather than the tuple struct itself so no field offset is assumed.\n-pgtbl = { path = \"inner.memory_set.page_table.root_ppn.__0\", reader = \"ppn\", role = \"address_space_root\" }\n-prio = { path = \"inner.priority\", reader = \"usize\", role = \"priority\" }\n+pgtbl = { path = \"memory_set.page_table.root_ppn.__0\", reader = \"ppn\", role = \"address_space_root\" }\n+prio = { path = \"inner.prio\", reader = \"usize\", role = \"priority\" }\n+priority = { path = \"inner.priority\", reader = \"usize\", role = \"priority\" }\n+stride = { path = \"inner.stride\", reader = \"usize\" }\n+heap_bottom = { path = \"inner.heap_bottom\", reader = \"usize\" }\n+program_brk = { path = \"inner.program_brk\", reader = \"usize\" }\n \n \n \n@@ -223,7 +222,7 @@ exit = { path = \"inner.exit_code\", reader = \"i32\", role = \"exit_code\" }\n \n \n \n-trapcx = { path = \"inner.trap_cx_ppn.__0\", reader = \"ppn\", role = \"trap_context\" }\n+trapcx = { path = \"trap_cx_ppn.__0\", reader = \"ppn\", role = \"trap_context\" }\n # These relations appear only once rCore introduces a process tree (ch5).\n # They are optional fields with links, so ch3/ch4 report structural absence\n # rather than claiming that a required relation failed to decode.\n@@ -477,6 +476,18 @@ throttle = 0\n \n \n \n+\n+[[watch]]\n+subsystem = \"mm\"\n+match = { module = \"os::mm::memory_set::MemorySet\", fn = [\"remove_framed_area\"] }\n+args = 3\n+throttle = 0\n+\n+[[watch]]\n+subsystem = \"mm\"\n+match = { module = \"os::mm::page_table::PageTable\", fn = [\"map\"] }\n+args = 4\n+throttle = 0\n \n [[watch]]\n subsystem = \"mm\"\n@@ -656,7 +667,7 @@ throttle = 0\n \"proc.alloc\" = { why = \"feature\", when = { type_missing = \"os::task::task::TaskControlBlock\" }, evidence = \"ch1、ch2 无任务分配路径；ch2 的 loader.c 复用同一应用内存区依次装入二进制，ch3 起引入 TaskControlBlock。\" }\n \"proc.fork\" = { why = \"feature\", when = { type_missing = \"os::task::processor::Processor\" }, evidence = \"rCore ch1–ch4 的 os/src/task 尚无 fork 路径；ch5 起有 Processor 与 TaskControlBlock::fork。按当前 ELF 的 Processor 类型核对阶段。\" }\n \"proc.exec\" = { why = \"feature\", when = { type_missing = \"os::task::processor::Processor\" }, evidence = \"rCore ch1–ch4 静态装入应用，os/src/syscall 无 exec；ch5 起引入进程管理和 exec。按当前 ELF 的 Processor 类型核对阶段。\" }\n-\"vm.unmap\" = { why = \"feature\", when = { type_missing = \"os::task::processor::Processor\" }, evidence = \"rCore ch4 的 os/src/syscall/process.rs 中 sys_munmap 明确为 NOT IMPLEMENTED YET；ch5 起有进程内存回收。按当前 ELF 的 Processor 类型区分阶段。\" }\n+\"vm.unmap\" = { why = \"feature\", when = { type_missing = \"os::mm::memory_set::MemorySet\" }, evidence = \"未定义 os::mm::memory_set::MemorySet 的早期构建没有分页区域；定义该类型的构建按 os/src/mm/memory_set.rs 中的区域取消映射路径检查，包括 2026A 的 remove_framed_area。\" }\n \"phys.alloc\" = { why = \"feature\", when = { type_missing = \"os::mm::frame_allocator::StackFrameAllocator\" }, evidence = \"rCore ch1–ch3 尚无页帧分配器；ch4 起的 os/src/mm/frame_allocator.rs 定义 StackFrameAllocator。按当前 ELF 的该类型核对阶段。\" }\n \"phys.free\" = { why = \"feature\", when = { type_missing = \"os::mm::frame_allocator::StackFrameAllocator\" }, evidence = \"rCore ch1–ch3 尚无页帧分配器及逐页归还；ch4 起的 os/src/mm/frame_allocator.rs 实现分配与回收。按当前 ELF 的类型核对阶段。\" }\n \"vm.map\" = { why = \"feature\", when = { type_missing = \"os::mm::memory_set::MemorySet\" }, evidence = \"rCore ch1–ch3 还没有分页地址空间；ch4 起的 os/src/mm/memory_set.rs 定义 MemorySet 并建立区域映射。按当前 ELF 的类型核对阶段。\" }\n@@ -828,7 +839,7 @@ throttle = 0\n \n \"os::mm::frame_allocator::frame_dealloc\" = \"phys.free\"\n \"os::mm::frame_allocator::frame_alloc\" = \"phys.alloc\"\n-\"os::mm::page_table::PageTable::map\" = \"pagetable.map\"\n+\"os::mm::page_table::PageTable::map\" = { kind = \"pagetable.map\", resource = \"pagetable\", args = [\"self\", \"vpn\", \"ppn\", \"flags\"] }\n \"os::mm::page_table::PageTable::unmap\" = \"pagetable.unmap\"\n \"os::mm::page_table::PageTable::new\" = \"pagetable.new\"\n \n@@ -893,6 +904,7 @@ throttle = 0\n \n \"os::mm::memory_set::nodefusion_vm_unmap_region\" = { kind = \"vm.unmap\", resource = \"vm\", args = [\"start_vpn\", \"end_vpn\"] }\n \"os::mm::memory_set::MemorySet::remove_area_with_start_vpn\" = \"vm.remove_area\"\n+\"os::mm::memory_set::MemorySet::remove_framed_area\" = { kind = \"vm.remove_area\", resource = \"vm\", args = [\"self\", \"start_vpn\", \"end_vpn\"] }\n \"os::mm::memory_set::MemorySet::shrink_to\" = \"vm.shrink\"\n \"os::mm::memory_set::MemorySet::append_to\" = \"vm.grow\"\n \"os::mm::init\" = \"vm.init\"\n@@ -1550,3 +1562,35 @@ opts = [\n [syscalls]\n files = [\"os/src/syscall/mod.rs\"]\n pattern = 'const\\s+SYSCALL_(?P\\w+)\\s*:\\s*usize\\s*=\\s*(?P\\d+)'\n+\n+[[entity]]\n+name = \"batch_manager\"\n+type = \"os::batch::AppManager\"\n+label = \"应用批次\"\n+\n+[[entity.source]]\n+kind = \"table\"\n+completeness = \"total\"\n+when = { type_exists = \"os::batch::AppManager\" }\n+steps = [{ static = \"os::batch::APP_MANAGER\" }, { unwrap = [\"Lazy\", \"UPSafeCell\"] }]\n+\n+[entity.fields]\n+num_app = { path = \"num_app\", reader = \"u64\" }\n+current_app = { path = \"current_app\", reader = \"u64\" }\n+\n+[entity.table]\n+empty = \"当前没有应用批次。\"\n+ [[entity.table.column]]\n+ key = \"num_app\"\n+ label = \"应用数\"\n+ [[entity.table.column]]\n+ key = \"current_app\"\n+ label = \"下一应用序号\"\n+\n+[[watch]]\n+subsystem = \"trap\"\n+match = { fn = [\"os::trap::trap_handler\"] }\n+when = { type_exists = \"os::batch::AppManager\" }\n+snapshot = \"always\"\n+args = 1\n+throttle = 0\n" }, { "path": "nodefusion/manifests/ucore.toml", "sha256": "7ca738a5abfb1c21afdb75b44c2fc0ce81b19d3d2db9aa3d820850b8abf74327", "patch": "diff --git a/nodefusion/manifests/ucore.toml b/nodefusion/manifests/ucore.toml\nindex 4312842..750f358 100644\n--- a/nodefusion/manifests/ucore.toml\n+++ b/nodefusion/manifests/ucore.toml\n@@ -33,17 +33,29 @@ steps = [\n { iter = \"array\" },\n ]\n \n+[[entity.source]]\n+kind = \"batch\"\n+completeness = \"none\"\n+when = { all = [{ type_missing = \"proc\" }, { symbol_exists = \"clean_bss\" }, { symbol_missing = \"pool\" }, { symbol_missing = \"allocproc\" }, { symbol_missing = \"scheduler\" }] }\n+steps = []\n+\n [entity.liveness]\n-skip_when = { field = \"state\", equals = \"P_UNUSED\" }\n+skip_when = { field = \"state\", one_of = [\"UNUSED\", \"P_UNUSED\"] }\n \n [entity.fields]\n pid = { path = \"pid\", reader = \"i32\", role = \"id\" }\n state = { path = \"state\", reader = \"enum\", enum = \"procstate\", role = \"state\" }\n \n [entity.optional_fields]\n+kstack = { path = \"kstack\", reader = \"u64\" }\n+trapframe = { path = \"trapframe\", reader = \"ptr\", role = \"trap_context\" }\n+context = { path = \"context\", reader = \"struct\", role = \"sched_context\" }\n pagetable = { path = \"pagetable\", reader = \"ptr\", role = \"address_space_root\" }\n max_page = { path = \"max_page\", reader = \"u64\" }\n ustack_base = { path = \"ustack_base\", reader = \"u64\" }\n+ustack = { path = \"ustack\", reader = \"u64\" }\n+heap_bottom = { path = \"heap_bottom\", reader = \"u64\" }\n+program_brk = { path = \"program_brk\", reader = \"u64\" }\n exit_code = { path = \"exit_code\", reader = \"u64\", role = \"exit_code\" }\n files = { path = \"files\", reader = \"array\" }\n \n@@ -112,6 +124,53 @@ empty = \"当前没有活跃线程。\"\n \n # -------------------------------------------------------------- resources\n \n+[[entity]]\n+name = \"batch_context\"\n+type = \"trapframe\"\n+label = \"用户上下文\"\n+\n+[[entity.source]]\n+kind = \"table\"\n+completeness = \"total\"\n+when = { all = [{ type_exists = \"trapframe\" }, { symbol_exists = \"trap_page\" }, { symbol_missing = \"pool\" }] }\n+steps = [{ static = \"trap_page\" }]\n+\n+[[entity.source]]\n+kind = \"batch\"\n+completeness = \"none\"\n+when = { all = [{ type_exists = \"proc\" }, { symbol_exists = \"pool\" }, { symbol_missing = \"trap_page\" }] }\n+steps = []\n+\n+[entity.fields]\n+epc = { path = \"epc\", reader = \"u64\" }\n+user_sp = { path = \"sp\", reader = \"u64\" }\n+kernel_sp = { path = \"kernel_sp\", reader = \"u64\" }\n+a0 = { path = \"a0\", reader = \"u64\" }\n+a1 = { path = \"a1\", reader = \"u64\" }\n+a2 = { path = \"a2\", reader = \"u64\" }\n+a7 = { path = \"a7\", reader = \"u64\" }\n+\n+[entity.table]\n+empty = \"本构建没有独立的批处理上下文。\"\n+ [[entity.table.column]]\n+ key = \"epc\"\n+ label = \"返回地址\"\n+ format = \"hex\"\n+ [[entity.table.column]]\n+ key = \"user_sp\"\n+ label = \"用户栈\"\n+ format = \"hex\"\n+ [[entity.table.column]]\n+ key = \"kernel_sp\"\n+ label = \"内核栈\"\n+ format = \"hex\"\n+ [[entity.table.column]]\n+ key = \"a7\"\n+ label = \"a7\"\n+ [[entity.table.column]]\n+ key = \"a0\"\n+ label = \"a0\"\n+\n [[entity]]\n name = \"bcache\"\n type = \"buf\"\n@@ -264,12 +323,20 @@ empty = \"当前没有活跃 inode。\"\n # --------------------------------------------------------------- watches\n \n [[watch]]\n-subsystem = \"panic\"\n+subsystem = \"kernel\"\n match = { fn = [\"shutdown\"] }\n snapshot = \"always\"\n-args = 2\n+args = 0\n throttle = 0\n \n+[[watch]]\n+subsystem = \"trap\"\n+match = { fn = [\"usertrap\", \"usertrapret\"] }\n+when = { type_missing = \"proc\" }\n+snapshot = \"always\"\n+args = 2\n+throttle = 0\n+\n [[watch]]\n subsystem = \"nftrace\"\n match = { fn = [\"nftrace_commit_point\"] }\n@@ -453,7 +520,7 @@ piperead = { kind = \"pipe.read\", resource = \"pipe\" }\n pipewrite = { kind = \"pipe.write\", resource = \"pipe\" }\n pipeclose = { kind = \"pipe.close\", resource = \"pipe\" }\n \n-shutdown = { kind = \"kernel.panic\", args = [\"reason\"] }\n+shutdown = { kind = \"kernel.shutdown\" }\n \n # ----------------------------------------------------------------- profile\n \n@@ -471,12 +538,11 @@ machine_opts = [\n ]\n interactive = true\n prompt = \">> \"\n-ready_markers = [\"C user shell\"]\n-# User-space assertions deliberately print the same ``[PANIC ...]`` prefix as\n-# the kernel logger and then return a non-zero test status. Treating that text\n-# as a kernel panic truncates aggregate suites halfway through; the shell's\n-# exit line and QEMU termination provide unambiguous outcomes instead.\n-panic_markers = [\"core dumped\"]\n+ready_markers = [\"hello wrold!\", \"C user shell\", \"start scheduler!\"]\n+done_markers = [\"ALL DONE\", \"all app are over!\", \"all apps over\"]\n+# User faults and assertions share the kernel's diagnostic text. Completion\n+# markers, process exit lines and QEMU termination determine the outcome.\n+panic_markers = []\n halt_markers = []\n stdin_preload = true\n stdin_pad = \"\\n\"\n" }, { "path": "nodefusion/model/dwarfsrc.py", "sha256": "02688f5f8419ba6c8fd64ea4f347929f74c8b70299b632223c5535bab298f265", "patch": "diff --git a/nodefusion/model/dwarfsrc.py b/nodefusion/model/dwarfsrc.py\nindex 6716ea1..2dd0640 100644\n--- a/nodefusion/model/dwarfsrc.py\n+++ b/nodefusion/model/dwarfsrc.py\n@@ -99,6 +99,10 @@ class DwarfSource:\n if not elf.has_dwarf_info():\n raise RuntimeError(f\"{self.path} 里没有调试信息（.debug_info）\")\n self.e_machine = elf.header[\"e_machine\"]\n+ symtab = elf.get_section_by_name('.symtab')\n+ self.defined_symbols = (None if symtab is None else\n+ {s.name for s in symtab.iter_symbols()\n+ if s.name and s['st_shndx'] != 'SHN_UNDEF'})\n self._exec_ranges = self._exec_sections(elf)\n self._parse(elf.get_dwarf_info())\n self._index_short()\n" }, { "path": "nodefusion/model/kinds.py", "sha256": "0432ef9f134654bc36554ec55afcb9f91c593110cdacf0a58d0ac4d1d05ac569", "patch": "diff --git a/nodefusion/model/kinds.py b/nodefusion/model/kinds.py\nindex c9da0ea..5551612 100644\n--- a/nodefusion/model/kinds.py\n+++ b/nodefusion/model/kinds.py\n@@ -17,7 +17,7 @@ KINDS: frozenset[str] = frozenset({\n \"inode.write\",\n \"interrupt.clock\", \"interrupt.dispatch\", \"interrupt.external\",\n \"interrupt.other\", \"interrupt.software\", \"interrupt.timer\",\n- \"kernel.alloc_error\", \"kernel.panic\",\n+ \"kernel.alloc_error\", \"kernel.panic\", \"kernel.shutdown\",\n \"log.begin\", \"log.commit\", \"log.end\", \"log.install\", \"log.recover\",\n \"log.write\", \"log.write_blocks\",\n \"pagetable.freewalk\", \"pagetable.map\", \"pagetable.new\", \"pagetable.unmap\",\n" }, { "path": "nodefusion/model/resolve.py", "sha256": "0c588760d0ec6494617007b02d786285ba190593935f574f6c53b99ad62ac8c0", "patch": "diff --git a/nodefusion/model/resolve.py b/nodefusion/model/resolve.py\nindex 5c9b606..a655199 100644\n--- a/nodefusion/model/resolve.py\n+++ b/nodefusion/model/resolve.py\n@@ -127,6 +127,24 @@ def resolve_path(dw: DwarfSource, start: StructLayout, path: str,\n def eval_when(dw: DwarfSource, pred: dict | None) -> tuple[bool, str]:\n if not pred:\n return True, \"无条件\"\n+ if not isinstance(pred, dict) or len(pred) != 1:\n+ return False, \"when 需要一种谓词\"\n+ if 'all' in pred:\n+ children = pred['all']\n+ if not isinstance(children, list) or not children or any(not isinstance(p, dict) or not p for p in children):\n+ return False, \"all 需要非空的谓词数组\"\n+ results = [eval_when(dw, child) for child in children]\n+ return all(hit for hit, _ in results), '；'.join(reason for _, reason in results)\n+ if 'symbol_exists' in pred or 'symbol_missing' in pred:\n+ key = next(iter(pred))\n+ name = pred[key]\n+ if not isinstance(name, str) or not name.strip():\n+ return False, \"符号名不能为空\"\n+ symbols = getattr(dw, 'defined_symbols', None)\n+ if symbols is None:\n+ return False, \"没有完整 ELF 符号表\"\n+ exists = name in symbols\n+ return (exists if key == 'symbol_exists' else not exists), f\"符号 {name} {'在' if exists else '不在'}\"\n \n if \"type_exists\" in pred:\n want = pred[\"type_exists\"]\n" }, { "path": "nodefusion/model/snapshot.py", "sha256": "e9c4ce76b858a9003e43d9eec363e1b88d4024338c3401b7a47a9871fe5dab7a", "patch": "diff --git a/nodefusion/model/snapshot.py b/nodefusion/model/snapshot.py\nindex fa095ef..0bf7cb7 100644\n--- a/nodefusion/model/snapshot.py\n+++ b/nodefusion/model/snapshot.py\n@@ -68,6 +68,8 @@ def is_live(entity: Entity, liveness: dict | None) -> bool:\n return True\n if \"equals\" in sw:\n return f.value != sw[\"equals\"]\n+ if \"one_of\" in sw:\n+ return f.value not in sw[\"one_of\"]\n return True\n \n \n" }, { "path": "nodefusion/host/bundle.py", "sha256": "cec890de70422513db45c7a592e758c9dba368a638fc2b337d0e3156a607f8e0", "patch": "diff --git a/nodefusion/host/bundle.py b/nodefusion/host/bundle.py\nindex a31f11f..f96d198 100644\n--- a/nodefusion/host/bundle.py\n+++ b/nodefusion/host/bundle.py\n@@ -8,13 +8,14 @@ import zlib\n from collections import Counter\n from pathlib import Path\n \n-from ..model.symbols import demangle, demangle_v0\n+from ..model.symbols import display_name\n from . import guest as guest_mod\n from .analyze import Analysis\n \n MAX_EVENTS = 150_000\n \n MIN_SPARE_EVENTS = 25_000\n+MIN_KIND_EVENTS = 64\n \n DIAGNOSTIC_PREFIXES = (\"func.\",)\n \n@@ -57,6 +58,25 @@ class Interner:\n return i\n \n \n+def _kind_budgets(counts: dict[str, int], budget: int) -> tuple[dict[str, int], int]:\n+ if not counts:\n+ return {}, 0\n+ floor = min(MIN_KIND_EVENTS, budget // len(counts))\n+ if floor == 0:\n+ return {kind: int(index < budget) for index, kind in enumerate(counts)}, 0\n+ quotas = {kind: min(count, floor) for kind, count in counts.items()}\n+ remaining = budget - sum(quotas.values())\n+ residual_total = sum(counts.values()) - sum(quotas.values())\n+ cumulative = 0\n+ if residual_total:\n+ for kind, count in counts.items():\n+ residual = count - quotas[kind]\n+ quotas[kind] += ((cumulative + residual) * remaining // residual_total\n+ - cumulative * remaining // residual_total)\n+ cumulative += residual\n+ return quotas, floor\n+\n+\n def _event_selection(events: list, *, materialize: bool) -> tuple[list, dict]:\n \"\"\"Bound the interactive event stream while auditing the full raw trace.\"\"\"\n raw_kinds = Counter(e.kind for e in events)\n@@ -65,7 +85,7 @@ def _event_selection(events: list, *, materialize: bool) -> tuple[list, dict]:\n if len(events) <= MAX_EVENTS:\n return (events if materialize else []), {\n \"applied\": False,\n- \"policy\": \"kind-preserving/systematic-v3\",\n+ \"policy\": \"kind-preserving/systematic-v5\",\n \"raw\": len(events), \"retained\": len(events), \"dropped\": 0,\n \"target_limit\": MAX_EVENTS, \"minimum_spare\": MIN_SPARE_EVENTS,\n \"always_keep\": \"all events when the raw stream fits\",\n@@ -77,37 +97,32 @@ def _event_selection(events: list, *, materialize: bool) -> tuple[list, dict]:\n }\n \n spare_raw = len(events) - priority_raw\n- semantic_kinds = {k for k in raw_kinds if _is_semantic(k)}\n- reserved_spare = min(MIN_SPARE_EVENTS, spare_raw)\n+ semantic_counts = {k: count for k, count in raw_kinds.items() if _is_semantic(k)}\n+ reserved_spare = min(MIN_SPARE_EVENTS, spare_raw, MAX_EVENTS)\n priority_budget = min(priority_raw, MAX_EVENTS - reserved_spare)\n+ quotas, kind_floor = _kind_budgets(semantic_counts, priority_budget)\n room = MAX_EVENTS - priority_budget\n- step = max(1, spare_raw // room) if room > 0 and spare_raw else 1\n+ diagnostic_counts = {k: count for k, count in raw_kinds.items() if not _is_semantic(k)}\n+ diagnostic_quotas, diagnostic_floor = _kind_budgets(diagnostic_counts, min(room, spare_raw))\n+ quotas.update(diagnostic_quotas)\n chosen: list = []\n retained_kinds: Counter = Counter()\n dropped_kinds: dict[str, int] = {}\n- spare_seen = 0\n- spare_kept = 0\n semantic_seen = 0\n- first_kinds: set[str] = set()\n- nonfirst_seen = 0\n- nonfirst_total = priority_raw - len(semantic_kinds)\n- nonfirst_budget = max(0, priority_budget - len(semantic_kinds))\n+ seen_by_kind: Counter = Counter()\n for e in events:\n if _is_semantic(e.kind):\n semantic_seen += 1\n- if e.kind not in first_kinds:\n- first_kinds.add(e.kind)\n- retain = len(first_kinds) <= priority_budget\n- else:\n- retain = (nonfirst_total > 0 and\n- (nonfirst_seen + 1) * nonfirst_budget // nonfirst_total\n- > nonfirst_seen * nonfirst_budget // nonfirst_total)\n- nonfirst_seen += 1\n+ seen = seen_by_kind[e.kind]\n+ seen_by_kind[e.kind] += 1\n+ quota = quotas[e.kind]\n+ total = raw_kinds[e.kind]\n+ if seen == 0:\n+ retain = quota > 0\n else:\n- retain = room > 0 and spare_kept < room and spare_seen % step == 0\n- spare_seen += 1\n- if retain:\n- spare_kept += 1\n+ retain = (quota > 1 and\n+ seen * (quota - 1) // (total - 1)\n+ > (seen - 1) * (quota - 1) // (total - 1))\n if retain:\n retained_kinds[e.kind] += 1\n if materialize:\n@@ -120,15 +135,19 @@ def _event_selection(events: list, *, materialize: bool) -> tuple[list, dict]:\n \n return chosen, {\n \"applied\": True,\n- \"policy\": \"kind-preserving/systematic-v3\",\n+ \"policy\": \"kind-preserving/systematic-v5\",\n \"raw\": len(events), \"retained\": retained, \"dropped\": dropped,\n \"target_limit\": MAX_EVENTS, \"minimum_spare\": MIN_SPARE_EVENTS,\n- \"always_keep\": \"first event of each normalized kind within budget\",\n+ \"always_keep\": \"all events of kinds whose count fits their per-kind budget\",\n \"priority_raw\": priority_raw, \"spare_raw\": spare_raw,\n \"semantic_budget\": priority_budget,\n+ \"minimum_per_kind\": kind_floor,\n+ \"semantic_kind_budgets\": {k: quotas[k] for k in sorted(semantic_counts)},\n+ \"diagnostic_kind_budgets\": dict(sorted(diagnostic_quotas.items())),\n+ \"minimum_per_diagnostic_kind\": diagnostic_floor,\n \"semantic_retained\": semantic_seen - sum(v for k, v in dropped_kinds.items()\n if _is_semantic(k)),\n- \"spare_budget\": room, \"stride\": step if room > 0 and spare_raw else None,\n+ \"spare_budget\": room, \"stride\": None,\n \"retained_kinds\": dict(sorted(retained_kinds.items())),\n \"dropped_kinds\": dict(sorted(dropped_kinds.items())),\n }\n@@ -493,7 +512,11 @@ def build(a: Analysis) -> dict:\n a.events, getattr(a.trace, \"function_returns\", ()), a.elf,\n retained_ids={id(e) for e in events})\n metrics = a.metrics()\n- caller_cache: dict[str, str] = {}\n+ display_cache: dict[str, str] = {}\n+ def display(raw):\n+ if raw not in display_cache:\n+ display_cache[raw] = display_name(raw)\n+ return display_cache[raw]\n \n ev = {\n \"insn\": [], \"cpu\": [], \"kind\": [], \"res\": [], \"pid\": [],\n@@ -508,19 +531,14 @@ def build(a: Analysis) -> dict:\n ev[\"res\"].append(res_i(e.resource))\n ev[\"pid\"].append(e.pid if e.pid is not None else -1)\n ev[\"pc\"].append(e.pc or 0)\n- ev[\"func\"].append(fn(e.func))\n+ ev[\"func\"].append(fn(display(e.func)) if e.func else fn(None))\n ev[\"entry\"].append(1 if e.function_entry else 0)\n- ev[\"entry_name\"].append(fn(e.entry_name) if e.entry_name else -1)\n+ ev[\"entry_name\"].append(fn(display(e.entry_name)) if e.entry_name else -1)\n caller = None\n if e.function_entry and e.return_address and a.elf is not None:\n raw, _ = a.elf.resolve_pc(e.return_address)\n if raw:\n- caller = caller_cache.get(raw)\n- if caller is None:\n- caller = (demangle(raw)\n- or demangle_v0(raw, impls=True, generics=True)\n- or raw)\n- caller_cache[raw] = caller\n+ caller = display(raw)\n ev[\"caller\"].append(fn(caller) if caller else -1)\n path = stack_paths.get(id(e))\n ev[\"stack\"].append([fn(label) for label in path] if path else None)\n@@ -657,10 +675,15 @@ def build(a: Analysis) -> dict:\n \n def _samples(a: Analysis) -> dict:\n fn = Interner()\n+ labels = {}\n out = {\"insn\": [], \"cpu\": [], \"pc\": [], \"priv\": [], \"func\": []}\n step = max(1, len(a.trace.samples) // 20000)\n for s in a.trace.samples[::step]:\n name, _ = a.elf.resolve_pc(s.pc)\n+ if name:\n+ if name not in labels:\n+ labels[name] = display_name(name)\n+ name = labels[name]\n out[\"insn\"].append(s.insn)\n out[\"cpu\"].append(s.cpu)\n out[\"pc\"].append(s.pc)\n" }, { "path": "nodefusion/tests/test_bundle_shape.py", "sha256": "55f2f20855a890967caba83581ca1dda43fa6606a5af6ab1ee7b07b074e7c82b", "patch": "diff --git a/nodefusion/tests/test_bundle_shape.py b/nodefusion/tests/test_bundle_shape.py\nindex 40bd9fe..80984c3 100644\n--- a/nodefusion/tests/test_bundle_shape.py\n+++ b/nodefusion/tests/test_bundle_shape.py\n@@ -1,5 +1,6 @@\n \n import sys\n+from collections import Counter\n from pathlib import Path\n from types import SimpleNamespace as NS\n \n@@ -73,6 +74,23 @@ def test_caller_names_demangle_rust_trait_impls():\n \"starry_kernel::mm::aspace::backend::cow::CowBackend::clone_map\"\n \n \n+def test_raw_function_entry_and_pc_names_share_readable_labels():\n+ raw = '_ZN2os4root17h1234567890abcdefE'\n+ a = _analysis(_state())\n+ event = Event(1, 0, 'func.root', 'function', func=raw,\n+ function_entry=True, entry_name=raw, return_address=0x80001000)\n+ a.elf = NS(resolve_pc=lambda addr: (raw, 0))\n+ a.events = [event]\n+ a.trace.samples = [NS(insn=1, cpu=0, pc=0x80001000, priv=1)]\n+ result = B.build(a)\n+ funcs = result['dict']['funcs']\n+ for key in ['func', 'entry_name', 'caller']:\n+ assert funcs[result['events'][key][0]] == 'os::root'\n+ assert event.entry_name == raw\n+ assert event.func == raw\n+ assert result['samples']['funcs'][result['samples']['func'][0]] == 'os::root'\n+\n+\n def test_resources_is_always_there_even_when_empty():\n b = B.build(_analysis(_state(reason=\"没声明\")))\n assert b[\"states\"][0][\"resources\"] == []\n@@ -144,7 +162,8 @@ def test_event_selection_metadata_accounts_for_every_raw_event(monkeypatch):\n assert audit[\"priority_raw\"] == 4\n assert audit[\"spare_raw\"] == 26\n assert audit[\"spare_budget\"] == 6\n- assert audit[\"stride\"] == 4\n+ assert audit[\"stride\"] is None\n+ assert audit['diagnostic_kind_budgets'] == {'func.hot_path': 6}\n assert sum(audit[\"retained_kinds\"].values()) == audit[\"retained\"]\n assert sum(audit[\"dropped_kinds\"].values()) == audit[\"dropped\"]\n assert [e.insn for e in selected[:4]] == [0, 1, 2, 3]\n@@ -156,10 +175,9 @@ def test_bounded_selector_preserves_order_and_systematic_sample(monkeypatch):\n events = [NS(kind=(\"proc.fork\" if i in {2, 7} else \"func.hot\"), insn=i)\n for i in range(12)]\n selected, audit = B._select_events(events)\n- # Ten diagnostics, four spare slots => old spare[::2][:4], interleaved\n- # with both semantic events in original timeline order.\n- assert [event.insn for event in selected] == [0, 2, 3, 5, 7, 8]\n- assert audit[\"stride\"] == 2\n+ # Four per-kind positions include the first and last diagnostic entries.\n+ assert [event.insn for event in selected] == [0, 2, 4, 7, 8, 11]\n+ assert audit[\"stride\"] is None\n assert audit[\"retained\"] == 6\n \n \n@@ -178,6 +196,79 @@ def test_large_semantic_stream_stays_browser_bounded(monkeypatch):\n assert audit[\"raw\"] == audit[\"retained\"] + audit[\"dropped\"]\n \n \n+def test_rare_semantic_events_survive_hot_kinds_without_kernel_allowlists(monkeypatch):\n+ monkeypatch.setattr(B, 'MAX_EVENTS', 200)\n+ monkeypatch.setattr(B, 'MIN_SPARE_EVENTS', 25)\n+ events = [NS(kind='pagetable.map', insn=i) for i in range(5000)]\n+ events += [NS(kind='future_namespace.branch', insn=5000 + i) for i in range(13)]\n+ events += [NS(kind='trap.page_fault', insn=5013 + i) for i in range(4)]\n+ events += [NS(kind='func.loop', insn=5017 + i) for i in range(1000)]\n+ selected, audit = B._select_events(events)\n+ assert len(selected) == audit['retained'] == 200\n+ assert audit['retained_kinds']['future_namespace.branch'] == 13\n+ assert audit['retained_kinds']['trap.page_fault'] == 4\n+ assert audit['retained_kinds']['func.loop'] == 25\n+ assert audit['semantic_retained'] == 175\n+ assert audit['semantic_kind_budgets']['pagetable.map'] == 158\n+ hot = [item.insn for item in selected if item.kind == 'pagetable.map']\n+ assert hot[0] == 0 and hot[-1] == 4999\n+ assert [item.insn for item in selected] == sorted(item.insn for item in selected)\n+ assert B._select_events(events)[0] == selected\n+ empty, accounting = B._event_selection(events, materialize=False)\n+ assert empty == [] and accounting == audit\n+ for kind, count in Counter(item.kind for item in events).items():\n+ assert audit['retained_kinds'].get(kind, 0) + audit['dropped_kinds'].get(kind, 0) == count\n+\n+\n+def test_more_semantic_kinds_than_slots_is_still_bounded(monkeypatch):\n+ monkeypatch.setattr(B, 'MAX_EVENTS', 7)\n+ monkeypatch.setattr(B, 'MIN_SPARE_EVENTS', 2)\n+ events = [NS(kind=f'new.kind{i}', insn=i) for i in range(20)]\n+ events += [NS(kind='func.noise', insn=20 + i) for i in range(20)]\n+ selected, audit = B._select_events(events)\n+ assert len(selected) == 7\n+ assert audit['semantic_retained'] == 5 and audit['retained_kinds']['func.noise'] == 2\n+ assert sum(audit['semantic_kind_budgets'].values()) == 5\n+ assert [item.kind for item in selected[:5]] == [f'new.kind{i}' for i in range(5)]\n+ assert sum(audit['dropped_kinds'].values()) == 33\n+ assert B._event_selection(events, materialize=False)[1] == audit\n+\n+\n+def test_rare_function_entries_survive_hot_diagnostic_functions(monkeypatch):\n+ monkeypatch.setattr(B, 'MAX_EVENTS', 100)\n+ monkeypatch.setattr(B, 'MIN_SPARE_EVENTS', 25)\n+ events = [NS(kind='syscall.enter', insn=i) for i in range(1000)]\n+ events += [NS(kind='func.format', insn=1000 + i) for i in range(2000)]\n+ events += [NS(kind='func.unmap', insn=3000 + i) for i in range(2)]\n+ selected, audit = B._select_events(events)\n+ assert len(selected) == 100\n+ assert audit['retained_kinds']['func.unmap'] == 2\n+ assert audit['retained_kinds']['func.format'] == 23\n+ assert not audit['dropped_kinds'].get('func.unmap')\n+ assert selected[-1] is events[-1]\n+\n+\n+def test_kind_quotas_use_the_budget_without_exceeding_raw_counts():\n+ for counts in [{'one': 1}, {'a': 2, 'b': 1000, 'c': 9},\n+ {str(index): index + 1 for index in range(100)}]:\n+ total = sum(counts.values())\n+ for budget in range(min(total, 300) + 1):\n+ quotas, floor = B._kind_budgets(counts, budget)\n+ assert sum(quotas.values()) == budget\n+ assert all(0 <= quotas[kind] <= count for kind, count in counts.items())\n+ assert all(quotas[kind] == count for kind, count in counts.items() if count <= floor)\n+\n+\n+def test_diagnostic_reservation_cannot_exceed_total_budget(monkeypatch):\n+ monkeypatch.setattr(B, 'MAX_EVENTS', 4)\n+ monkeypatch.setattr(B, 'MIN_SPARE_EVENTS', 25)\n+ events = [NS(kind='syscall.enter', insn=0)]\n+ events += [NS(kind='func.hot', insn=i) for i in range(1, 30)]\n+ selected, audit = B._select_events(events)\n+ assert len(selected) == 4 and audit['semantic_budget'] == 0\n+ assert audit['dropped_kinds']['syscall.enter'] == 1\n+\n+\n def test_interactive_sampling_does_not_erase_raw_semantic_coverage(monkeypatch):\n monkeypatch.setattr(B, \"MAX_EVENTS\", 10)\n monkeypatch.setattr(B, \"MIN_SPARE_EVENTS\", 3)\n" }, { "path": "nodefusion/tests/test_kernel_integrations.py", "sha256": "8e3ecdcf6ad5ea3b7fa44a3e3244a2c9678255b62c02d8cd48de9cfc1189b376", "patch": "diff --git a/nodefusion/tests/test_kernel_integrations.py b/nodefusion/tests/test_kernel_integrations.py\nindex a285e88..b33e6b0 100644\n--- a/nodefusion/tests/test_kernel_integrations.py\n+++ b/nodefusion/tests/test_kernel_integrations.py\n@@ -64,7 +64,7 @@ def test_rcore_patch_and_manifest_agree_on_the_per_region_hook():\n assert manifest.events[symbol].kind == \"vm.unmap\"\n assert manifest.events[symbol].args == [\"start_vpn\", \"end_vpn\"]\n assert manifest.absent[\"vm.unmap\"].when == {\n- \"type_missing\": \"os::task::processor::Processor\"}\n+ \"type_missing\": \"os::mm::memory_set::MemorySet\"}\n \n \n def test_rcore_patch_exports_exact_physical_allocation_results():\n@@ -79,6 +79,38 @@ def test_rcore_patch_exports_exact_physical_allocation_results():\n assert \"nodefusion_trace_sched_switch\" in patch\n \n \n+def test_rcore_reference_region_removal_is_an_attempt_not_a_success_event():\n+ manifest = load(ROOT / 'manifests/rcore.toml')\n+ symbol = 'os::mm::memory_set::MemorySet::remove_framed_area'\n+ assert manifest.events[symbol].kind == 'vm.remove_area'\n+ assert manifest.events[symbol].args == ['self', 'start_vpn', 'end_vpn']\n+ dedicated = next(index for index, watch in enumerate(manifest.watches)\n+ if watch.match.get('fn') == ['remove_framed_area'])\n+ inline = next(index for index, watch in enumerate(manifest.watches)\n+ if watch.match.get('fn') == ['frame_alloc', 'frame_dealloc', 'unmap', 'init_heap'])\n+ assert dedicated < inline\n+ assert manifest.watches[dedicated].args == 3\n+ assert not manifest.watches[dedicated].inlined\n+\n+\n+def test_rcore_2026a_ch4_observation_patch_preserves_region_acceptance():\n+ patch = (INTEGRATIONS / 'rcore-2026a-ch4-observation.patch').read_text()\n+ assert patch.index('})?;') < patch.index('nodefusion_vm_unmap_region(start.0, end.0);')\n+ assert patch.index('nodefusion_vm_unmap_region(start.0, end.0);') < patch.index('let mut area = self.areas.remove(index);')\n+ assert 'const NFT_ALLOCATOR_STATE: u64 = 6;' in patch\n+ assert 'a: [free_pages as u64, used_pages as u64, 0, 0]' in patch\n+ assert 'nodefusion_trace_page(NFT_KALLOC, paddr, free_pages, used_pages)' in patch\n+ assert 'nodefusion_trace_page(NFT_KFREE, PhysAddr::from(ppn).0, free_pages, used_pages)' in patch\n+ assert 'GlobalAlloc::alloc(&self.0, layout)' in patch\n+ assert 'GlobalAlloc::dealloc(&self.0, ptr, layout)' in patch\n+ manifest = load(ROOT / 'manifests/rcore.toml')\n+ event = manifest.events['os::mm::page_table::PageTable::map']\n+ assert event.kind == 'pagetable.map' and event.args == ['self', 'vpn', 'ppn', 'flags']\n+ rule = next(watch for watch in manifest.watches\n+ if watch.match == {'module': 'os::mm::page_table::PageTable', 'fn': ['map']})\n+ assert rule.args == 4 and not rule.inlined\n+\n+\n def test_rcore_chapter_patches_preserve_per_region_and_scheduler_identity():\n for chapter in (6, 8):\n patch = (INTEGRATIONS / f\"rcore-ch{chapter}-nodefusion.patch\").read_text(\n@@ -94,6 +126,43 @@ def test_rcore_chapter_patches_preserve_per_region_and_scheduler_identity():\n assert \"block_current_and_run_next\" in ch8\n \n \n+def test_2026a_ch5_observation_preserves_allocator_and_switch_semantics():\n+ rust = (INTEGRATIONS / 'rcore-2026a-ch5-observation.patch').read_text()\n+ c = (INTEGRATIONS / 'ucore-2026a-ch5-observation.patch').read_text()\n+ for patch in (rust, c):\n+ assert 'nftrace_commit_point' in patch\n+ assert 'nodefusion_pagetable_map' in patch or '#[inline(never)]' in patch\n+ assert 'self.allocated -= 1;' in rust\n+ assert 'self.allocated += 1;' in rust\n+ assert 'if result.is_some()' in rust\n+ assert 'frame.as_ref().map_or(0, |frame| PhysAddr::from(frame.ppn).0)' in rust\n+ assert 'pub(crate) const NO_TASK: usize = usize::MAX;' in rust\n+ assert 'emit(4, [from_task as u64, to_task as u64, from_pid as u64, to_pid as u64])' in rust\n+ assert 'crate::nftrace::NO_TASK, next_pid' in rust\n+ assert 'crate::nftrace::sched_switch(task_id, idle, pid, crate::nftrace::NO_TASK)' in rust\n+ assert rust.index('add_task(new_task);') < rust.index('crate::nftrace::process_fork(current_task.getpid(), new_pid);')\n+ assert 'nf_used_pages--;' in c\n+ assert 'nf_used_pages++;' in c\n+ assert c.index('nf_used_pages--;') < c.index('nftrace_page_free((uint64)pa, nf_free_pages, nf_used_pages);')\n+ assert c.index('add_task(np);') < c.index('nftrace_proc_fork(p->pid, np->pid);')\n+ assert 'nftrace_sched_switch((uint64)&idle, (uint64)p, (uint64)-1, p->pid);' in c\n+ assert 'nftrace_sched_switch((uint64)p, (uint64)&idle, p->pid, (uint64)-1);' in c\n+ assert c.index('*pte = PA2PTE(pa) | perm | PTE_V;') < c.index('nodefusion_pagetable_map(a, pa, perm | PTE_V);')\n+\n+\n+def test_rcore_2026a_ch5_region_hooks_only_describe_explicit_pte_removal():\n+ patch = (INTEGRATIONS / 'rcore-2026a-ch5-observation.patch').read_text()\n+ assert 'if mapped_end > area.vpn_range.get_start()' in patch\n+ assert 'nodefusion_vm_unmap_region(area.vpn_range.get_start().0, mapped_end.0);' in patch\n+ assert 'if self.vpn_range.get_start() < self.vpn_range.get_end()' in patch\n+ assert 'nodefusion_vm_unmap_region(self.vpn_range.get_start().0, self.vpn_range.get_end().0);' in patch\n+ assert 'if new_end < self.vpn_range.get_end()' in patch\n+ assert 'nodefusion_vm_unmap_region(new_end.0, self.vpn_range.get_end().0);' in patch\n+ # Releasing data-frame ownership on exit leaves the zombie page table alive.\n+ # Do not invent explicit PTE-removal events for that separate operation.\n+ assert 'self.areas.clear();' not in patch\n+\n+\n def test_rcore_ch8_keeps_applicable_vm_and_signal_watchpoints_callable():\n patch = (INTEGRATIONS / \"rcore-page-table-observation-points.patch\").read_text()\n assert patch.count(\"#[inline(never)]\") == 6\n@@ -161,7 +230,7 @@ def test_rcore_filesystem_absence_depends_on_the_resolved_build(monkeypatch):\n (\"proc.alloc\", \"os::task::task::TaskControlBlock\"),\n (\"proc.fork\", \"os::task::processor::Processor\"),\n (\"proc.exec\", \"os::task::processor::Processor\"),\n- (\"vm.unmap\", \"os::task::processor::Processor\"),\n+ (\"vm.unmap\", \"os::mm::memory_set::MemorySet\"),\n (\"phys.alloc\", \"os::mm::frame_allocator::StackFrameAllocator\"),\n (\"phys.free\", \"os::mm::frame_allocator::StackFrameAllocator\"),\n (\"vm.map\", \"os::mm::memory_set::MemorySet\"),\n@@ -189,6 +258,28 @@ def test_ucore_patch_and_manifest_supply_exact_semantics():\n assert manifest.absent[\"log.commit\"].why == \"feature\"\n \n \n+def test_ucore_2026a_ch4_patch_observes_allocator_results_and_committed_ptes():\n+ patch = (INTEGRATIONS / 'ucore-2026a-ch4-observation.patch').read_text()\n+ paths = [line.split(' b/', 1)[1] for line in patch.splitlines() if line.startswith('diff --git ')]\n+ assert set(paths) == {'os/kalloc.c', 'os/vm.c', 'os/nftrace.c', 'os/nftrace.h'}\n+ assert 'NFT_KALLOC = 1' in patch and 'NFT_KFREE = 5' in patch and 'NFT_ALLOCATOR_STATE = 6' in patch\n+ assert 'nftrace_page_alloc((uint64)l, 1, nf_free_pages, nf_used_pages)' in patch\n+ assert 'nftrace_page_free((uint64)pa, 1, nf_free_pages, nf_used_pages)' in patch\n+ assert 'nftrace_allocator_state(nf_free_pages, nf_used_pages)' in patch\n+ assert patch.index('*pte = PA2PTE(pa) | perm | PTE_V;') < patch.index('nodefusion_pagetable_map(a, pa, perm | PTE_V);')\n+ assert 'const struct nftrace_record record = { type, { a0, a1, a2, a3 } }' in patch\n+\n+\n+def test_ucore_2026a_ch4_page_table_experiment_owns_and_reclaims_its_pages():\n+ patch = (INTEGRATIONS / 'ucore-2026a-ch4-pagetable-experiment.patch').read_text()\n+ assert patch.index('uvmunmap(table, va, 1, 0)') < patch.index('uvmunmap(table, va, 1, 1)')\n+ assert patch.index('uvmunmap(table, TRAMPOLINE, 1, 0)') < patch.index('freewalk(table)')\n+ assert 'walkaddr(table, va + 0x123) != (uint64)frame' in patch\n+ assert 'useraddr(table, va + 0x123) != (uint64)frame + 0x123' in patch\n+ assert 'frame[0x123] != 0x5a' in patch\n+ assert patch.index('kvm_init();') < patch.index('nodefusion_pagetable_experiment();', patch.index('kvm_init();'))\n+\n+\n def test_ucore_showcase_fixes_remain_separate_from_observation_patch():\n observation = (INTEGRATIONS / \"ucore-nodefusion.patch\").read_text()\n kernel_fix = (INTEGRATIONS / \"ucore-ch8-showcase.patch\").read_text()\n@@ -204,6 +295,13 @@ def test_ucore_manifest_covers_all_eight_measured_shapes():\n manifest = load(ROOT / \"manifests\" / \"ucore.toml\")\n assert manifest.detect == {\"all_symbol\": [\"digits\", \"SBI_SHUTDOWN\"]}\n assert manifest.derive_feature_absence_from_symbols is True\n+ process = manifest.entity(\"process\")\n+ assert process.liveness[\"skip_when\"] == {\n+ \"field\": \"state\", \"one_of\": [\"UNUSED\", \"P_UNUSED\"]}\n+ fields = {field.name: field for field in process.fields}\n+ assert fields[\"context\"].role == \"sched_context\"\n+ assert fields[\"trapframe\"].role == \"trap_context\"\n+ assert all(fields[name].optional for name in (\"context\", \"trapframe\", \"kstack\"))\n parent = next(field for field in manifest.entity(\"process\").relations\n if field.name == \"parent\")\n assert parent.optional is True\n" }, { "path": "nodefusion/tests/test_resolve.py", "sha256": "b14f432eb380c5514b73431978b01b0d715ed9a49f92deb547358fb35dd4d8ec", "patch": "diff --git a/nodefusion/tests/test_resolve.py b/nodefusion/tests/test_resolve.py\nindex 0eeed28..585b0a8 100644\n--- a/nodefusion/tests/test_resolve.py\n+++ b/nodefusion/tests/test_resolve.py\n@@ -97,6 +97,30 @@ def test_missing_field_is_absent_not_a_failure():\n assert resolve_path(dw, tcb, \"inner.priority\").state == ABSENT\n \n \n+def test_rcore_priority_spellings_resolve_without_kernel_branches():\n+ from nodefusion.model.manifest import builtin_dir, load\n+ from nodefusion.model.snapshot import Entity, Field\n+\n+ manifest = load(builtin_dir() / \"rcore.toml\")\n+ specs = [field for entity in manifest.entities if entity.name == \"task\"\n+ for field in entity.fields if field.role == \"priority\"]\n+ assert {field.path for field in specs} == {\"inner.prio\", \"inner.priority\"}\n+ assert all(field.optional for field in specs)\n+ for spelling in (\"prio\", \"priority\", None):\n+ dw, tcb = chain()\n+ if spelling:\n+ dw._s[6].fields[spelling] = 136\n+ fields = {}\n+ for spec in specs:\n+ resolved = resolve_path(dw, tcb, spec.path)\n+ fields[spec.name] = Field(spec.name, resolved.state,\n+ value=16 if resolved.state == PRESENT else None,\n+ role=spec.role)\n+ entity = Entity(\"task\", 0x1000, fields=fields)\n+ assert entity.role(\"priority\") == (16 if spelling else None)\n+ assert sum(field.ok for field in fields.values()) == (1 if spelling else 0)\n+\n+\n def test_missing_field_names_the_payload_type_not_just_the_wrapper():\n dw, tcb = chain()\n why = resolve_path(dw, tcb, \"inner.priority\").reason or \"\"\n" }, { "path": "nodefusion/host/assets/app.css", "sha256": "4a6f97f6046f1658f683e28107b5e524cf64507c57e7ad76035a7e8d745740eb", "patch": "diff --git a/nodefusion/host/assets/app.css b/nodefusion/host/assets/app.css\nindex 88f5f82..f2adda9 100644\n--- a/nodefusion/host/assets/app.css\n+++ b/nodefusion/host/assets/app.css\n@@ -415,7 +415,7 @@ tr.sel td { background: color-mix(in oklch, var(--accent) 12%, var(--bg)); }\n .detail-empty-icon { display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid var(--line); border-radius: 6px; color: var(--accent); font-size: 21px; }\n .detail-empty h2 { color: var(--fg); font-size: 14px; margin: 16px 0 5px; }\n .detail-empty p { max-width: 28ch; margin: 0; line-height: 1.55; }\n-.trace-controls { display: flex; gap: 8px; margin: 0 0 16px; }\n+.trace-controls { display: flex; gap: 8px; margin: 0 0 16px; position: sticky; top: -22px; z-index: 2; background: var(--bg); padding-block: 8px; border-bottom: 1px solid var(--line); }\n .trace-controls input, .trace-controls select { height: 34px; min-width: 150px; padding: 6px 9px; border: 1px solid var(--line); border-radius: 5px; background: var(--bg2); color: var(--fg); }\n .trace-controls input { flex: 1; min-width: 220px; }\n .trace-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; min-height: 420px; }\n@@ -460,8 +460,8 @@ tr.sel td { background: color-mix(in oklch, var(--accent) 12%, var(--bg)); }\n .right { width: 100%; max-height: 340px; border-left: 0; border-top: 1px solid var(--line); padding: 14px; }\n .main.detail-collapsed .right { display: none; }\n #evscroll { height: 54vh; }\n- .trace-grid { grid-template-columns: 1fr; }\n- .function-tree, .function-sequence { max-height: 42vh; }\n+ .trace-grid { grid-template-columns: 1fr; min-height: 0; align-items: start; }\n+ .function-tree, .function-sequence { min-height: 0; max-height: 42vh; }\n }\n @media (max-width: 560px) {\n .brand-kicker, .shortcut-hint { display: none; }\n" }, { "path": "nodefusion/host/assets/app.js", "sha256": "c253b16d88ddc73d1c78ec3729800800ad255b923712893dbe12f66faab2aca2", "patch": "diff --git a/nodefusion/host/assets/app.js b/nodefusion/host/assets/app.js\nindex 7f1256e..a87dcd9 100644\n--- a/nodefusion/host/assets/app.js\n+++ b/nodefusion/host/assets/app.js\n@@ -28,6 +28,7 @@ const NF = {\n selPage: null,\n selPid: null,\n filters: { text: '', kind: '', res: '', pid: '', cpu: '', group: '', from: '', to: '' },\n+ functionFilters: {text: '', cpu: '', limit: '80', grouping: null},\n };\n \n /* ------------------------------------------------------------------ 工具 */\n@@ -1641,6 +1642,10 @@ function renderFunctions() {\n if (returns.nested_entries) grouping.appendChild(new Option('观测调用链', 'stack'));\n if (returns.nested_entries) grouping.value = 'stack';\n else if (!entries.some((e) => e.caller)) grouping.value = 'namespace';\n+ search.value = NF.functionFilters.text;\n+ cpu.value = NF.functionFilters.cpu;\n+ limit.value = NF.functionFilters.limit;\n+ if ([...grouping.options].some(option => option.value === NF.functionFilters.grouping)) grouping.value = NF.functionFilters.grouping;\n controls.appendChild(search); controls.appendChild(cpu); controls.appendChild(grouping);\n controls.appendChild(limit); p.appendChild(controls);\n \n@@ -1658,6 +1663,7 @@ function renderFunctions() {\n grid.appendChild(treePanel); grid.appendChild(sequencePanel); p.appendChild(grid);\n \n function paint() {\n+ NF.functionFilters = {text: search.value, cpu: cpu.value, limit: limit.value, grouping: grouping.value};\n const q = search.value.trim().toLowerCase();\n const selectedCpu = cpu.value;\n const filtered = entries.filter((e) => (!q || e.fn.toLowerCase().includes(q) || e.caller.toLowerCase().includes(q) || (e.path || []).some((name) => name.toLowerCase().includes(q))) && (selectedCpu === '' || String(e.cpu) === selectedCpu));\n" }, { "path": "nodefusion/tests/test_phys_alloc_gate.py", "sha256": "a1b68458d8268d052082ad92b80f86753c46423eec7c86c3bdd6019e23b8186a", "patch": "diff --git a/nodefusion/tests/test_phys_alloc_gate.py b/nodefusion/tests/test_phys_alloc_gate.py\nindex 3cb406d..ec2bc43 100644\n--- a/nodefusion/tests/test_phys_alloc_gate.py\n+++ b/nodefusion/tests/test_phys_alloc_gate.py\n@@ -128,6 +128,51 @@ def test_sched_semantic_record_fills_both_endpoints_without_snapshots():\n assert event.detail[\"from_proc\"] == \"kernel-task#41\"\n assert event.detail[\"to_task_id\"] == 42\n assert event.detail[\"to_pid\"] == 7\n+ assert event.pid == 7\n+ assert a._attribute(0, -1, {}) == (7, \"task#7\")\n+\n+\n+def test_semantic_switch_attribution_survives_missing_and_reused_snapshot_slots():\n+ a = object.__new__(A.Analysis)\n+ a._pid_by_slot_at = lambda *_: (99, \"stale slot\")\n+ slots = {0: 3, 1: 4}\n+ assert a._attribute(0, 0, slots) == (99, \"stale slot\")\n+ a._nftrace_event(NfTraceRec(insn=100, cpu=0, type=a.NFT_SCHED_SWITCH,\n+ a=(10, 20, a.NFT_NO_TASK, 7)), -1, slots)\n+ assert a._attribute(0, -1, {}) == (7, \"task#7\")\n+ assert a._attribute(0, 200, slots) == (7, \"task#7\")\n+ assert a._attribute(1, 0, slots) == (99, \"stale slot\")\n+ alloc = a._nftrace_event(NfTraceRec(insn=101, cpu=0, type=a.NFT_KALLOC,\n+ a=(0x81234000, 1, 9, 1)), -1, {})\n+ assert alloc.pid == 7\n+\n+\n+def test_semantic_switches_track_each_cpu_and_distinguish_pid_zero_from_idle():\n+ a = object.__new__(A.Analysis)\n+ for cpu, pid in [(0, 0), (1, 7)]:\n+ a._nftrace_event(NfTraceRec(insn=100 + cpu, cpu=cpu, type=a.NFT_SCHED_SWITCH,\n+ a=(10 + cpu, 20 + cpu, a.NFT_NO_TASK, pid)), -1, {})\n+ assert a._attribute(0, -1, {}) == (0, \"task#0\")\n+ assert a._attribute(1, -1, {}) == (7, \"task#7\")\n+ a._nftrace_event(NfTraceRec(insn=102, cpu=0, type=a.NFT_SCHED_SWITCH,\n+ a=(20, 10, 0, a.NFT_NO_TASK)), -1, {})\n+ assert a._attribute(0, -1, {}) == (None, \"kernel-task#10\")\n+ assert a._attribute(1, -1, {}) == (7, \"task#7\")\n+\n+\n+def test_rebuilding_events_resets_semantic_ownership_without_using_future_switches():\n+ a = object.__new__(A.Analysis)\n+ a.ncpu = 1\n+ a.states = []\n+ a.events = []\n+ a._semantic_current = {0: (99, \"previous analysis\")}\n+ a.trace = NS(discons=[], watch_hits=[], nftrace=[\n+ NfTraceRec(insn=1, cpu=0, type=a.NFT_KALLOC, a=(0x81234000, 1, 9, 1)),\n+ NfTraceRec(insn=2, cpu=0, type=a.NFT_SCHED_SWITCH, a=(10, 20, a.NFT_NO_TASK, 7)),\n+ NfTraceRec(insn=3, cpu=0, type=a.NFT_KALLOC, a=(0x81235000, 1, 8, 2)),\n+ ])\n+ a.build_events()\n+ assert [event.pid for event in a.events] == [None, 7, 7]\n \n \n def test_kfree_semantic_record_has_physical_range():\n" }, { "path": "nodefusion/host/callstack.py", "sha256": "7a1ce5d70940e2c98792f57543e3df2cbc7b9f96ec5d8c7b280ccf17c78f9bde", "patch": "diff --git a/nodefusion/host/callstack.py b/nodefusion/host/callstack.py\nindex edae6fe..6f42814 100644\n--- a/nodefusion/host/callstack.py\n+++ b/nodefusion/host/callstack.py\n@@ -4,7 +4,7 @@ from __future__ import annotations\n \n import heapq\n \n-from ..model.symbols import demangle, demangle_v0\n+from ..model.symbols import display_name\n from . import nftrace\n \n \n@@ -20,6 +20,11 @@ def observed_stacks(events, returns, elf, retained_ids=None):\n matched = 0\n nested = 0\n caller_cache = {}\n+ label_cache = {}\n+ def label(name):\n+ if name not in label_cache:\n+ label_cache[name] = display_name(name)\n+ return label_cache[name]\n if not returns:\n return paths, {\"raw\": 0, \"matched\": 0, \"nested_entries\": 0}\n entries = ((e.insn, 0, e.cpu, e) for e in events\n@@ -49,10 +54,13 @@ def observed_stacks(events, returns, elf, retained_ids=None):\n parent = frames[-1] if frames else None\n if obj.return_address not in caller_cache:\n raw = elf.resolve_pc(obj.return_address)[0] if elf else None\n- caller_cache[obj.return_address] = (\n- demangle(raw) or demangle_v0(raw) or raw) if raw else None\n+ caller_cache[obj.return_address] = raw\n caller = caller_cache[obj.return_address]\n- if (parent is None or parent.entry_name != caller or\n+ # Raw symbols distinguish Rust instantiations with the same display\n+ # name. Older producers may already supply a decoded entry name.\n+ caller_matches = (parent is not None and caller is not None and\n+ (parent.entry_name == caller or parent.entry_name == label(caller)))\n+ if (not caller_matches or\n parent.address_space != obj.address_space or\n obj.stack_pointer > parent.stack_pointer):\n frames.clear()\n@@ -60,7 +68,7 @@ def observed_stacks(events, returns, elf, retained_ids=None):\n frames.clear()\n frames.append(obj)\n if retained_ids is None or id(obj) in retained_ids:\n- paths[id(obj)] = tuple(f.entry_name or f.func or f.kind for f in frames[-16:])\n+ paths[id(obj)] = tuple(label(f.entry_name or f.func or f.kind) for f in frames[-16:])\n if len(frames) > 1:\n nested += 1\n return paths, {\"raw\": len(returns), \"matched\": matched,\n" }, { "path": "nodefusion/model/symbols.py", "sha256": "39f23be73d754e52221a4889c0101d50d8d8962ec21f1628d1cc36f07acdecb8", "patch": "diff --git a/nodefusion/model/symbols.py b/nodefusion/model/symbols.py\nindex 8bf19dc..7310e65 100644\n--- a/nodefusion/model/symbols.py\n+++ b/nodefusion/model/symbols.py\n@@ -41,6 +41,10 @@ def demangle(sym: str) -> str | None:\n return _demangle_legacy(sym) or demangle_v0(sym)\n \n \n+def display_name(sym: str) -> str:\n+ return demangle(sym) or demangle_v0(sym, impls=True, generics=True) or sym\n+\n+\n def _demangle_legacy(sym: str) -> str | None:\n s = _LLVM_SUFFIX.sub(\"\", sym)\n if not s.startswith(\"_ZN\") or not s.endswith(\"E\"):\n" }, { "path": "nodefusion/tests/test_callstack.py", "sha256": "78bc55f0ccf1a6dde2836aaa256ca0ce9fc0f9b4c6dcc4b144732460144d901e", "patch": "diff --git a/nodefusion/tests/test_callstack.py b/nodefusion/tests/test_callstack.py\nindex 4e2b5f5..9c91f75 100644\n--- a/nodefusion/tests/test_callstack.py\n+++ b/nodefusion/tests/test_callstack.py\n@@ -55,3 +55,27 @@ def test_unretained_entries_still_shape_retained_stack():\n Elf(), retained_ids={id(child)})\n assert paths == {id(child): (\"root\", \"child\")}\n assert counts[\"matched\"] == 1\n+\n+\n+def test_rust_raw_symbols_match_and_display_as_function_names():\n+ raw_root = '_ZN2os4root17h1234567890abcdefE'\n+ raw_child = '_ZN2os5child17h1234567890abcdefE'\n+ root = entry(1, raw_root, 0x99, 100)\n+ child = entry(2, raw_child, 0x10, 80)\n+ elf = type('RustElf', (), {'resolve_pc': lambda self, pc: (raw_root, 0) if pc == 0x10 else (None, 0)})()\n+ paths, counts = observed_stacks([root, child], [ret(3, 0x10, 80)], elf)\n+ assert paths[id(child)] == ('os::root', 'os::child')\n+ assert counts['nested_entries'] == 1\n+ assert root.entry_name == raw_root\n+ assert child.entry_name == raw_child\n+\n+\n+def test_decoded_names_do_not_merge_distinct_raw_rust_symbols():\n+ raw_root = '_ZN2os4root17h1234567890abcdefE'\n+ other_root = '_ZN2os4root17hfedcba0987654321E'\n+ root = entry(1, raw_root, 0x99, 100)\n+ child = entry(2, 'child', 0x10, 80)\n+ elf = type('RustElf', (), {'resolve_pc': lambda self, pc: (other_root, 0) if pc == 0x10 else (None, 0)})()\n+ paths, counts = observed_stacks([root, child], [ret(3, 0x10, 80)], elf)\n+ assert paths[id(child)] == ('child',)\n+ assert counts['nested_entries'] == 0\n" }, { "path": "nodefusion/tests/test_event_kinds.py", "sha256": "67eee9315e36a7484d1141590701ad8e4e23c4be212b1ac9c0c4949983beef52", "patch": "diff --git a/nodefusion/tests/test_event_kinds.py b/nodefusion/tests/test_event_kinds.py\nindex c681f50..0117daf 100644\n--- a/nodefusion/tests/test_event_kinds.py\n+++ b/nodefusion/tests/test_event_kinds.py\n@@ -104,6 +104,23 @@ def test_a_manifest_without_the_section_still_loads(tmp_path):\n assert _load(tmp_path, \"\").events == {}\n \n \n+def test_ucore_shutdown_is_not_a_panic_or_an_argument_bearing_call():\n+ man = M.load(DRAFTS / \"ucore.toml\")\n+ event = man.events[\"shutdown\"]\n+ assert event.kind == \"kernel.shutdown\"\n+ assert event.args == []\n+ watches = [w for w in man.watches if \"shutdown\" in w.match.get(\"fn\", [])]\n+ assert watches and all(w.args == 0 for w in watches)\n+ for name, symbol in [(\"xv6\", \"panic\"), (\"rcore\", \"os::lang_items::panic\")]:\n+ assert M.load(DRAFTS / f\"{name}.toml\").events[symbol].kind == \"kernel.panic\"\n+\n+\n+def test_new_manifest_does_not_relabel_a_historical_recording():\n+ events = M.load(DRAFTS / \"ucore.toml\").events\n+ assert event_shape(\"shutdown\", {\"kind\": \"kernel.panic\", \"params\": [\"reason\"]},\n+ kernel_kind=\"ucore\", events=events)[0] == \"kernel.panic\"\n+\n+\n \n def _shape(name, *, kind=\"\", resource=\"kernel\", params=(), kernel):\n entry = {\"resource\": resource, \"params\": list(params)}\n" }, { "path": "nodefusion/tests/test_no_build.py", "sha256": "4bc6168bfe29297a6cb93ec91824dcbb9764c9ae8551f3d71446cd97e619d4ad", "patch": "diff --git a/nodefusion/tests/test_no_build.py b/nodefusion/tests/test_no_build.py\nindex 5fa5c28..d5a3c25 100644\n--- a/nodefusion/tests/test_no_build.py\n+++ b/nodefusion/tests/test_no_build.py\n@@ -48,7 +48,7 @@ def test_it_records_without_building(tmp_path):\n assert \"跳过构建\" in out\n \n \n-def test_it_says_out_loud_that_nothing_was_built(tmp_path):\n+def test_warning_identifies_the_existing_build_and_checksum_record(tmp_path):\n r = _recorder(tmp_path, _tree(tmp_path))\n r.build_kernel()\n assert len(r.warnings) == 1\n@@ -56,7 +56,8 @@ def test_it_says_out_loud_that_nothing_was_built(tmp_path):\n assert \"--no-build\" in w\n assert \"kernel.elf\" in w\n assert \"UTC\" in w\n- assert \"没人验证过\" in w\n+ assert \"这次没有编译\" in w\n+ assert \"kernel_elf_identity\" in w\n \n \n def test_a_missing_elf_is_fatal(tmp_path):\n" }, { "path": "nodefusion/tests/test_record_icount.py", "sha256": "f76528d2c5a7fc18938d0afc88b5ee9e9626d63801bccc6ced57c1e4b2c823a0", "patch": "diff --git a/nodefusion/tests/test_record_icount.py b/nodefusion/tests/test_record_icount.py\nindex 8e8d223..25ae2a0 100644\n--- a/nodefusion/tests/test_record_icount.py\n+++ b/nodefusion/tests/test_record_icount.py\n@@ -1,9 +1,46 @@\n from pathlib import Path\n from types import SimpleNamespace\n \n-from nodefusion.host.record import (Recorder, RunConfig, _calibration_watchlist,\n+import pytest\n+\n+from nodefusion.host.record import (NO_PROGRAM, Recorder, RunConfig, _calibration_watchlist,\n _program_start_from_trace,\n _snapshot_focus_start)\n+\n+\n+@pytest.mark.parametrize('capability,program,expected', [\n+ (True, NO_PROGRAM, 'headless'),\n+ (True, '', 'headless'),\n+ (True, 'usertest', 'shell'),\n+ (False, 'usertest', 'headless'),\n+])\n+def test_driver_uses_workload_mode_not_only_kernel_capability(monkeypatch, tmp_path,\n+ capability, program, expected):\n+ class Reader:\n+ def __init__(self, *args):\n+ pass\n+\n+ def start(self):\n+ pass\n+\n+ def join(self, **kwargs):\n+ pass\n+\n+ def text(self):\n+ return ''\n+\n+ monkeypatch.setattr('nodefusion.host.record._ConsoleReader', Reader)\n+ recorder = Recorder.__new__(Recorder)\n+ recorder.cfg = SimpleNamespace(program=program)\n+ recorder.profile = SimpleNamespace(interactive=capability)\n+ process = SimpleNamespace(stdout=None, stderr=None, poll=lambda: 0)\n+ recorder.sh = SimpleNamespace(popen=lambda cmd: process)\n+ recorder._qemu_cmd = lambda *args: 'qemu'\n+ recorder._drive_headless = lambda *args: 'headless'\n+ recorder._drive_shell = lambda *args: 'shell'\n+ outcome, _, _ = recorder._drive(tmp_path / 'trace.nfb', None, 100,\n+ tmp_path / 'console.log', tmp_path / 'qemu.log')\n+ assert outcome == expected\n from nodefusion.host.watchlist import NFTRACE_COMMIT, WatchEntry, WatchList\n \n \n" }, { "path": "nodefusion/tests/test_regenerate_artifact.py", "sha256": "0098a8fc52b7cd42889036de78ca54cec00064396d701eadd224b3febd3c043b", "patch": "diff --git a/nodefusion/tests/test_regenerate_artifact.py b/nodefusion/tests/test_regenerate_artifact.py\nindex 566d3f5..12e6f80 100644\n--- a/nodefusion/tests/test_regenerate_artifact.py\n+++ b/nodefusion/tests/test_regenerate_artifact.py\n@@ -17,6 +17,12 @@ EXPECTED_RUNS = {\n *{f\"rcore-ch{n}\" for n in range(1, 9)},\n *{f\"ucore-ch{n}\" for n in range(1, 9)},\n }\n+COURSE_RUNS = {\"rcore-2026A-ch3-observed\", \"ucore-2026A-ch3-batch\",\n+ \"rcore-2026A-ch1-verified\", \"ucore-2026A-ch1-verified\",\n+ \"rcore-2026A-ch2-reference\", \"ucore-2026A-ch2-reference\",\n+ \"ucore-2026A-ch2-stack-fixed\", \"ucore-2026A-ch2-faults\",\n+ \"rcore-2026A-ch4-observed\", \"ucore-2026A-ch4-observed\",\n+ \"ucore-2026A-ch4-pagetable\"}\n \n \n def report_sidecars():\n@@ -43,14 +49,31 @@ def record_from(path):\n \n def test_all_chapter_and_app_artifacts_are_present():\n entries = report_sidecars()\n- assert len(entries) == 24\n+ assert len(entries) == len(EXPECTED_RUNS) + len(COURSE_RUNS)\n runs = {record_from(path)[\"run\"] for path, _ in entries}\n- assert len(runs) == 24\n+ assert len(runs) == len(entries)\n+ assert COURSE_RUNS <= runs\n normalized = {name if not name.startswith((\"rcore-\", \"ucore-\"))\n else \"-\".join(name.split(\"-\")[:2]) for name in runs}\n assert EXPECTED_RUNS <= normalized\n \n \n+def test_course_artifacts_keep_commands_source_identity_and_raw_counts():\n+ records = [record for path, _ in report_sidecars()\n+ if (record := json.loads(path.read_text())).get(\"schema\") == \"nodefusion.education-recording/1\"]\n+ assert {record[\"run\"] for record in records} == COURSE_RUNS\n+ for record in records:\n+ assert record[\"schema\"] == \"nodefusion.education-recording/1\"\n+ expected = {\"rcore-2026A-ch1-verified\": \"qemu_exited\",\n+ \"ucore-2026A-ch2-reference\": \"timeout\"}.get(record[\"run\"], \"completed\")\n+ assert record[\"outcome\"] == expected and record[\"trace_complete\"]\n+ assert len(record[\"source\"][\"kernel_commit\"]) == 40\n+ assert len(record[\"source\"][\"plugin_sha256\"]) == 64\n+ assert \"--watch-all\" in record[\"record_command\"]\n+ assert \"--function-returns\" in record[\"record_command\"]\n+ assert record[\"observations\"][\"raw_events\"] == record[\"report\"][\"event_selection\"][\"raw\"]\n+\n+\n def test_tracecomplete_reuses_its_recording_folder():\n folder = ARTIFACTS / \"arceos/apps/tracecomplete\"\n manifest = json.loads((folder / \"manifest.json\").read_text(encoding=\"utf-8\"))\n" }, { "path": "nodefusion/tests/test_snapshot.py", "sha256": "a1e5383c15e3c3c18222f6e07991712b1f22dfebd3ec67178eb58e4710a921ea", "patch": "diff --git a/nodefusion/tests/test_snapshot.py b/nodefusion/tests/test_snapshot.py\nindex f6ee7e9..3f17d86 100644\n--- a/nodefusion/tests/test_snapshot.py\n+++ b/nodefusion/tests/test_snapshot.py\n@@ -235,6 +235,19 @@ def test_liveness_only_skips_on_an_exact_match():\n assert is_live(E(2149793408), spec)\n \n \n+def test_liveness_supports_declared_state_names_across_kernel_versions():\n+ from nodefusion.model.snapshot import Entity\n+\n+ spec = {\"skip_when\": {\"field\": \"state\", \"one_of\": [\"UNUSED\", \"P_UNUSED\"]}}\n+ for value, live in ((\"UNUSED\", False), (\"P_UNUSED\", False),\n+ (\"RUNNABLE\", True), (\"P_RUNNING\", True), (0, True)):\n+ entity = Entity(\"process\", 0, fields={\"state\": Field(\"state\", PRESENT, value)})\n+ assert is_live(entity, spec) is live\n+ for state in (ABSENT, EMPTY, UNDECODABLE):\n+ entity = Entity(\"process\", 0, fields={\"state\": Field(\"state\", state)})\n+ assert is_live(entity, spec)\n+\n+\n @needs_elf\n def test_entity_count_comes_from_dwarf_not_a_constant(xv6):\n dw, m, res, syms = xv6\n" }, { "path": "nodefusion/tests/test_units.py", "sha256": "9bf99f5d3080ed458a97e736e30b84025eb99c1e43e693d9aa33f519896106b3", "patch": "diff --git a/nodefusion/tests/test_units.py b/nodefusion/tests/test_units.py\nindex f10392d..8d86a2d 100644\n--- a/nodefusion/tests/test_units.py\n+++ b/nodefusion/tests/test_units.py\n@@ -40,6 +40,49 @@ def test_rcore_booted_needs_the_kernel_marker(console, booted):\n assert K.by_kind('rcore').booted(console) is booted\n \n \n+@pytest.mark.parametrize(\"marker\", [\"ALL DONE\", \"all app are over!\", \"all apps over\"])\n+def test_ucore_batch_completion(marker):\n+ assert K.by_kind('ucore').classify(f\"[PANIC 5] os/loader.c:14: {marker}\\n\") == 'completed'\n+\n+\n+@pytest.mark.parametrize(\"console, booted\", [\n+ (\"\\x1b[34m[INFO 0]start scheduler!\\x1b[0m\\n\", True),\n+ (\"C user shell\\n>> \", True),\n+ (\"OpenSBI v1.7\\n\", False),\n+])\n+def test_ucore_shell_and_scheduler_boot_markers(console, booted):\n+ assert K.by_kind('ucore').booted(console) is booted\n+\n+\n+def test_ucore_batch_without_completion_is_not_complete():\n+ assert K.by_kind('ucore').classify(\"start scheduler!\\nTest write A OK!\\n\") == 'qemu_exited'\n+\n+\n+@pytest.mark.parametrize('diagnostic', ['IllegalInstruction in application, core dumped.',\n+ '[PANIC 0] user assertion failed'])\n+def test_ucore_user_diagnostics_are_not_kernel_stop_markers(diagnostic):\n+ profile = K.by_kind('ucore')\n+ assert profile.booted('hello wrold!\\n')\n+ assert profile.classify(diagnostic) == 'qemu_exited'\n+ assert profile.classify(diagnostic + '\\nALL DONE\\n') == 'completed'\n+\n+\n+def test_ucore_headless_keeps_recording_after_user_fault(monkeypatch):\n+ from types import SimpleNamespace\n+ from nodefusion.host.record import Recorder\n+\n+ reader = SimpleNamespace(eof=False)\n+ consoles = iter(['hello wrold!\\nIllegalInstruction in application, core dumped.\\n',\n+ 'hello wrold!\\nIllegalInstruction in application, core dumped.\\nALL DONE\\n'])\n+ reader.text = lambda: next(consoles)\n+ monkeypatch.setattr('nodefusion.host.record.time.sleep', lambda seconds: None)\n+ recorder = Recorder.__new__(Recorder)\n+ recorder.cfg = SimpleNamespace(timeout=10, boot_timeout=5)\n+ recorder.profile = K.by_kind('ucore')\n+ process = SimpleNamespace(poll=lambda: None)\n+ assert recorder._drive_headless(process, reader) == 'completed'\n+\n+\n # ----------------------------------------------------------------- xv6 classify\n \n def test_xv6_panic():\n" } ], "deployed_source_files": { "nodefusion/__init__.py": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", 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"b3cc3367ec71c47a312fd3ba28cb5bc26972cf30d9f33fb5b8d52d5c66675686", "data_block_ids": [ 125, 126, 127, 128, 129, 130, 131 ] }, { "name": "ch6b_assert", "inode": 18, "size": 6881, "type": 2, "nlink": null, "sha256": "665a2d6632087de07a5dc6debb0f92dada9b42b5d3c4e3d1a142990888df5ac7", "data_block_ids": [ 132, 133, 134, 135, 136, 137, 138 ] }, { "name": "ch6b_cat", "inode": 19, "size": 6833, "type": 2, "nlink": null, "sha256": "2803811bed6fe04469bcb280b9bec19346f257455d1028f1e29cfd9180103493", "data_block_ids": [ 139, 140, 141, 142, 143, 144, 145 ] }, { "name": "ch6b_exec", "inode": 20, "size": 6881, "type": 2, "nlink": null, "sha256": "5494e1fc16edef77714e48087221fd1ffdd431aed7e24d5f8e2130f3e2315c2b", "data_block_ids": [ 146, 147, 148, 149, 150, 151, 152 ] }, { "name": "ch6b_filetest", "inode": 21, "size": 7089, "type": 2, "nlink": null, "sha256": "3e62b6bd5994d0559c677ea90172d54361e53c55622193bb66c7b910898d5b6e", "data_block_ids": [ 153, 154, 155, 156, 157, 158, 159 ] }, { "name": "ch6b_filetest_", "inode": 22, "size": 7385, "type": 2, "nlink": null, "sha256": "d34d1ab5b63b1c536aa8be4a2feae5ae5afa0da3a936b8d06c5b7e51b2a2175c", "data_block_ids": [ 160, 161, 162, 163, 164, 165, 166, 167 ] }, { "name": "ch6b_panic", "inode": 23, "size": 6897, "type": 2, "nlink": null, "sha256": "c6d03692c11432b5d937f93e7598da801d96f60266c2312e9009e04fdf230afa", "data_block_ids": [ 168, 169, 170, 171, 172, 173, 174 ] }, { "name": "ch6b_usertest", "inode": 24, "size": 7961, "type": 2, "nlink": null, "sha256": "f8a5af2225543009c4d2b1d7f22ac2e2fa25ef085dcb7cc656518fd667239ab1", "data_block_ids": [ 175, 176, 177, 178, 179, 180, 181, 182 ] }, { "name": "usershell", "inode": 25, "size": 8273, "type": 2, "nlink": null, "sha256": "58cbbce4d0ae1f505e448e2b1c94236f11fef668f95edec2a40b6142e8cb009a", "data_block_ids": [ 183, 184, 185, 186, 187, 188, 189, 190, 191 ] }, { "name": "filea", "inode": 26, "size": 14, "type": 2, "nlink": null, "sha256": "d9014c4624844aa5bac314773d6b689ad467fa4e1d1a50a1b8a99d5a95f72ff5", "data_block_ids": [ 192 ] } ], "inspector_sha256": "87db5ee660fee887db44526a4a915e7deef035dba03528b451ccdff1bfd2f49c" }, "versions": { "riscv64-unknown-elf-gcc": "riscv64-unknown-elf-gcc (Debian 14.2.0-19) 14.2.0", "cmake": "cmake version 3.31.6" }, "build_context": { "status": "PASS", "kernel_commit": "df045c4455f2dacb81caf39510aed994bf49ade7", "user_commit": "1733f460c596b013b1c509ad42afa428640783b0", "reference_build": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-build-final.json", "reference_build_sha256": "5be98a750ab1653e1b0a6bddc35b09a169aabad330ea7bfa4b197b946001b56f", "reference_kernel_elf_sha256": "58d8fd24f65926d116c66e86157fde93d5af2d4e1a50554c106fa6586dd33bb0", "reference_filesystem_sha256": "6deab196619184e63ab9963fa9eeecba8a1296b04ef3a76c2ded5d72ca905923", "driver_sha256": "77ed6dc651ffc4a537ca234a4a4e2947a2f9cf4254112a9b4cf2947598fa323c", "path": "/home/joseph/nf/education-2026A-20260927/cmake-3.31.6-linux-x86_64/bin:/home/joseph/nf/qemu-10.2.2/bin:/home/joseph/.cargo/bin:/home/joseph/nf/education-2026A-20260927/tool-bin:/usr/local/bin:/usr/bin:/bin", "commands": [ { "argv": [ "git", "clone", "--no-hardlinks", "--no-checkout", "/home/joseph/nf/education-2026A-20260927/ucore-ch6", "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed" ], "cwd": "/home/joseph/nf/education-2026A-20260927", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-clone.log", "returncode": 0, "log_sha256": "0d4cc141f496efac4983ac926175c5e23c230f52ef6f17cc9d7b6b11eb26584a" }, { "argv": [ "git", "checkout", "--detach", "df045c4455f2dacb81caf39510aed994bf49ade7" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-checkout.log", "returncode": 0, "log_sha256": "4306ed3d48cea7f8893a7d6dfa13c6a19cfee7839d66ce541a3118a5fb954bf8" }, { "argv": [ "git", "apply", "--check", "/home/joseph/nf/education-2026A-20260927/ucore-2026a-build.patch" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-ucore-2026a-build.patch-check.log", "returncode": 0, "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" }, { "argv": [ "git", "apply", "/home/joseph/nf/education-2026A-20260927/ucore-2026a-build.patch" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-ucore-2026a-build.patch-apply.log", "returncode": 0, "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" }, { "argv": [ "git", "apply", "--check", "/home/joseph/nf/education-2026A-20260927/ucore-2026a-ch6-observation.patch" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-ucore-2026a-ch6-observation.patch-check.log", "returncode": 0, "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" }, { "argv": [ "git", "apply", "/home/joseph/nf/education-2026A-20260927/ucore-2026a-ch6-observation.patch" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-ucore-2026a-ch6-observation.patch-apply.log", "returncode": 0, "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" }, { "argv": [ "git", "add", "-N", "os/nftrace.c", "os/nftrace.h" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-intent-to-add.log", "returncode": 0, "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" }, { "argv": [ "git", "clone", "--no-hardlinks", "--no-checkout", "/home/joseph/nf/education-2026A-20260927/ucore-ch6/user", "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed/user" ], "cwd": "/home/joseph/nf/education-2026A-20260927", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-user-clone.log", "returncode": 0, "log_sha256": "73ca79e6b0046ef20e0f20b1794dcaba3755a3264bbc2bfe3a6ae488b67d8874" }, { "argv": [ "git", "checkout", "--detach", "1733f460c596b013b1c509ad42afa428640783b0" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed/user", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-user-checkout.log", "returncode": 0, "log_sha256": "42d28980aedcf25f311d804c4f0eed3a591918b18059eaea3b081ad31fb87bf0" }, { "argv": [ "git", "apply", "--check", "-" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed/user", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-user-patch-check.log", "stdin_patch": "diff --git a/CMakeLists.txt b/CMakeLists.txt\nindex f5a9fac..ab1986d 100644\n--- a/CMakeLists.txt\n+++ b/CMakeLists.txt\n@@ -15,12 +15,12 @@ set(ASM_DIR asm)\n set(BIN_DIR bin)\n \n # Toolchain\n-set(PREFIX ${ARCH}-linux-musl-)\n+set(PREFIX ${ARCH}-linux-musl- CACHE STRING \"Cross compiler prefix\")\n \n if (${ARCH} STREQUAL riscv32)\n- set(CMAKE_C_FLAGS \"-march=rv32imac -mabi=ilp32 -mcmodel=medany\")\n+ set(CMAKE_C_FLAGS \"-march=rv32imac_zicsr_zifencei -mabi=ilp32 -mcmodel=medany\")\n elseif (${ARCH} STREQUAL riscv64)\n- set(CMAKE_C_FLAGS \"-march=rv64imac -mabi=lp64 -mcmodel=medany\")\n+ set(CMAKE_C_FLAGS \"-march=rv64imac_zicsr_zifencei -mabi=lp64 -mcmodel=medany\")\n else()\n message(\"Unsupported arch: ${ARCH}\")\n endif ()\ndiff --git a/Makefile b/Makefile\nindex be632ac..64f1ab6 100644\n--- a/Makefile\n+++ b/Makefile\n@@ -7,15 +7,16 @@ app_dir = src\n elf_dir := build/$(ARCH)\n bin_dir := build/bin\n out_dir := target\n-cmake_build_args := -DARCH=$(ARCH) -DCHAPTER=$(CHAPTER)\n+TOOLPREFIX ?= $(ARCH)-linux-musl-\n+cmake_build_args := -DARCH=$(ARCH) -DCHAPTER=$(CHAPTER) -DPREFIX=$(TOOLPREFIX)\n ifeq ($(MODE), release)\n cmake_build_args += -DCMAKE_BUILD_TYPE=Release\n else ifeq ($(MODE), debug)\n cmake_build_args += -DCMAKE_BUILD_TYPE=Debug\n endif\n \n-OBJCOPY := $(ARCH)-linux-musl-objcopy\n-OBJDUMP := $(ARCH)-linux-musl-objdump\n+OBJCOPY := $(TOOLPREFIX)objcopy\n+OBJDUMP := $(TOOLPREFIX)objdump\n CP := cp\n CH_TESTS := \n \ndiff --git a/src/ch6b_exec.c b/src/ch6b_exec.c\nindex 1a1d9c6..b67cf35 100644\n--- a/src/ch6b_exec.c\n+++ b/src/ch6b_exec.c\n@@ -5,7 +5,7 @@\n int main()\n {\n \tchar *_argv[] = {\n-\t\t\"(*o*)\", \"(>.<)\", \"(O.O)\", \"(QwQ)\", \"orz\", \"没有了呀\"\n+\t\t\"(*o*)\", \"(>.<)\", \"(O.O)\", \"(QwQ)\", \"orz\", \"没有了呀\", NULL\n \t};\n \texec(\"ch6b_args\", _argv);\n \treturn 0;\ndiff --git a/src/ch6b_filetest_simple.c b/src/ch6b_filetest_simple.c\nindex 062cecf..a27e982 100644\n--- a/src/ch6b_filetest_simple.c\n+++ b/src/ch6b_filetest_simple.c\n@@ -15,7 +15,9 @@ int main()\n \tfd = open(filea, O_RDONLY);\n \tassert(fd > 0);\n \tchar buf[16];\n-\tread(fd, buf, 16);\n+\tint nread = read(fd, buf, sizeof(buf) - 1);\n+\tassert_eq(nread, strlen(s));\n+\tbuf[nread] = '\\0';\n \tclose(fd);\n \tassert(strcmp(s, buf) == 0);\n \tputs(\"file_test passed!\");\ndiff --git a/src/ch6b_usertest.c b/src/ch6b_usertest.c\nindex cdd9fc8..1cb5f3a 100644\n--- a/src/ch6b_usertest.c\n+++ b/src/ch6b_usertest.c\n@@ -11,7 +11,7 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\",\t \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_getpid\\0\",\t \"ch5b_forktest0\\0\",\n \t\"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\", \"ch5b_exit\\0\",\n-\t\"ch6b_filetest\\0\", \"ch6b_exec\\0\",\n+\t\"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\",\n };\n \n int main()\ndiff --git a/src/ch7b_usertest.c b/src/ch7b_usertest.c\nindex 1f634d4..8bfc7c8 100644\n--- a/src/ch7b_usertest.c\n+++ b/src/ch7b_usertest.c\n@@ -10,7 +10,7 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\",\t \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_exit\\0\",\t \"ch5b_getpid\\0\",\n \t\"ch5b_forktest0\\0\", \"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\",\n-\t\"ch5b_exit\\0\",\t \"ch6b_filetest\\0\", \"ch6b_exec\\0\",\n+\t\"ch5b_exit\\0\",\t \"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\",\n \t\"ch7b_pipetest\\0\",\n };\n \ndiff --git a/src/ch8b_usertest.c b/src/ch8b_usertest.c\nindex 1cce5ce..f088c38 100644\n--- a/src/ch8b_usertest.c\n+++ b/src/ch8b_usertest.c\n@@ -10,9 +10,9 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\", \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_getpid\\0\", \"ch5b_forktest0\\0\",\n \t\"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\", \"ch5b_exit\\0\",\n-\t\"ch6b_filetest\\0\", \"ch6b_exec\\0\", \"ch7b_pipetest\\0\",\n+\t\"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\", \"ch7b_pipetest\\0\",\n \t\"ch8b_mpsc_sem\\0\",\n-\t\"ch8b_mut_phi_din.c\", \"ch8b_mut_race\\0\", \"ch8b_sync_sem\\0\",\n+\t \"ch8b_mut_race\\0\", \"ch8b_sync_sem\\0\",\n \t\"ch8b_test_condvar\\0\", \"ch8b_threads_arg\\0\", \"ch8b_threads\\0\", \n \t\"ch8b_spin_mut_race\\0\", \"ch8b_mut_phi_din\\0\",\n };\n", "returncode": 0, "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" }, { "argv": [ "git", "apply", "-" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed/user", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-user-patch-apply.log", "stdin_patch": "diff --git a/CMakeLists.txt b/CMakeLists.txt\nindex f5a9fac..ab1986d 100644\n--- a/CMakeLists.txt\n+++ b/CMakeLists.txt\n@@ -15,12 +15,12 @@ set(ASM_DIR asm)\n set(BIN_DIR bin)\n \n # Toolchain\n-set(PREFIX ${ARCH}-linux-musl-)\n+set(PREFIX ${ARCH}-linux-musl- CACHE STRING \"Cross compiler prefix\")\n \n if (${ARCH} STREQUAL riscv32)\n- set(CMAKE_C_FLAGS \"-march=rv32imac -mabi=ilp32 -mcmodel=medany\")\n+ set(CMAKE_C_FLAGS \"-march=rv32imac_zicsr_zifencei -mabi=ilp32 -mcmodel=medany\")\n elseif (${ARCH} STREQUAL riscv64)\n- set(CMAKE_C_FLAGS \"-march=rv64imac -mabi=lp64 -mcmodel=medany\")\n+ set(CMAKE_C_FLAGS \"-march=rv64imac_zicsr_zifencei -mabi=lp64 -mcmodel=medany\")\n else()\n message(\"Unsupported arch: ${ARCH}\")\n endif ()\ndiff --git a/Makefile b/Makefile\nindex be632ac..64f1ab6 100644\n--- a/Makefile\n+++ b/Makefile\n@@ -7,15 +7,16 @@ app_dir = src\n elf_dir := build/$(ARCH)\n bin_dir := build/bin\n out_dir := target\n-cmake_build_args := -DARCH=$(ARCH) -DCHAPTER=$(CHAPTER)\n+TOOLPREFIX ?= $(ARCH)-linux-musl-\n+cmake_build_args := -DARCH=$(ARCH) -DCHAPTER=$(CHAPTER) -DPREFIX=$(TOOLPREFIX)\n ifeq ($(MODE), release)\n cmake_build_args += -DCMAKE_BUILD_TYPE=Release\n else ifeq ($(MODE), debug)\n cmake_build_args += -DCMAKE_BUILD_TYPE=Debug\n endif\n \n-OBJCOPY := $(ARCH)-linux-musl-objcopy\n-OBJDUMP := $(ARCH)-linux-musl-objdump\n+OBJCOPY := $(TOOLPREFIX)objcopy\n+OBJDUMP := $(TOOLPREFIX)objdump\n CP := cp\n CH_TESTS := \n \ndiff --git a/src/ch6b_exec.c b/src/ch6b_exec.c\nindex 1a1d9c6..b67cf35 100644\n--- a/src/ch6b_exec.c\n+++ b/src/ch6b_exec.c\n@@ -5,7 +5,7 @@\n int main()\n {\n \tchar *_argv[] = {\n-\t\t\"(*o*)\", \"(>.<)\", \"(O.O)\", \"(QwQ)\", \"orz\", \"没有了呀\"\n+\t\t\"(*o*)\", \"(>.<)\", \"(O.O)\", \"(QwQ)\", \"orz\", \"没有了呀\", NULL\n \t};\n \texec(\"ch6b_args\", _argv);\n \treturn 0;\ndiff --git a/src/ch6b_filetest_simple.c b/src/ch6b_filetest_simple.c\nindex 062cecf..a27e982 100644\n--- a/src/ch6b_filetest_simple.c\n+++ b/src/ch6b_filetest_simple.c\n@@ -15,7 +15,9 @@ int main()\n \tfd = open(filea, O_RDONLY);\n \tassert(fd > 0);\n \tchar buf[16];\n-\tread(fd, buf, 16);\n+\tint nread = read(fd, buf, sizeof(buf) - 1);\n+\tassert_eq(nread, strlen(s));\n+\tbuf[nread] = '\\0';\n \tclose(fd);\n \tassert(strcmp(s, buf) == 0);\n \tputs(\"file_test passed!\");\ndiff --git a/src/ch6b_usertest.c b/src/ch6b_usertest.c\nindex cdd9fc8..1cb5f3a 100644\n--- a/src/ch6b_usertest.c\n+++ b/src/ch6b_usertest.c\n@@ -11,7 +11,7 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\",\t \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_getpid\\0\",\t \"ch5b_forktest0\\0\",\n \t\"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\", \"ch5b_exit\\0\",\n-\t\"ch6b_filetest\\0\", \"ch6b_exec\\0\",\n+\t\"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\",\n };\n \n int main()\ndiff --git a/src/ch7b_usertest.c b/src/ch7b_usertest.c\nindex 1f634d4..8bfc7c8 100644\n--- a/src/ch7b_usertest.c\n+++ b/src/ch7b_usertest.c\n@@ -10,7 +10,7 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\",\t \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_exit\\0\",\t \"ch5b_getpid\\0\",\n \t\"ch5b_forktest0\\0\", \"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\",\n-\t\"ch5b_exit\\0\",\t \"ch6b_filetest\\0\", \"ch6b_exec\\0\",\n+\t\"ch5b_exit\\0\",\t \"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\",\n \t\"ch7b_pipetest\\0\",\n };\n \ndiff --git a/src/ch8b_usertest.c b/src/ch8b_usertest.c\nindex 1cce5ce..f088c38 100644\n--- a/src/ch8b_usertest.c\n+++ b/src/ch8b_usertest.c\n@@ -10,9 +10,9 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\", \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_getpid\\0\", \"ch5b_forktest0\\0\",\n \t\"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\", \"ch5b_exit\\0\",\n-\t\"ch6b_filetest\\0\", \"ch6b_exec\\0\", \"ch7b_pipetest\\0\",\n+\t\"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\", \"ch7b_pipetest\\0\",\n \t\"ch8b_mpsc_sem\\0\",\n-\t\"ch8b_mut_phi_din.c\", \"ch8b_mut_race\\0\", \"ch8b_sync_sem\\0\",\n+\t \"ch8b_mut_race\\0\", \"ch8b_sync_sem\\0\",\n \t\"ch8b_test_condvar\\0\", \"ch8b_threads_arg\\0\", \"ch8b_threads\\0\", \n \t\"ch8b_spin_mut_race\\0\", \"ch8b_mut_phi_din\\0\",\n };\n", "returncode": 0, "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" }, { "argv": [ "cp", "-a", "/home/joseph/nf/education-2026A-20260927/ucore-ch6/user/target", "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed/user/target" ], "cwd": "/home/joseph/nf/education-2026A-20260927", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-copy-user-target.log", "returncode": 0, "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" }, { "argv": [ "make", "build", "LOG=info", "CHAPTER=6", "INIT_PROC=ch6b_usertest" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-kernel-build.log", "returncode": 0, "log_sha256": "fbc6d56dca8acf12bb8c759cb63fda30258996627ba9d4281dcc5275f20b256e" }, { "argv": [ "cp", "/home/joseph/nf/education-2026A-20260927/ucore-ch6-original.img", "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed/nfs/fs.img" ], "cwd": "/home/joseph/nf/education-2026A-20260927", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-copy-initial-image.log", "returncode": 0, "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" }, { "argv": [ "cp", "/home/joseph/nf/education-2026A-20260927/ucore-ch6-original.img", "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed/nfs/fs-copy.img" ], "cwd": "/home/joseph/nf/education-2026A-20260927", "environment": {}, "log": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed-copy-working-image.log", "returncode": 0, "log_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" } ], "patches": [ { "path": "/home/joseph/nf/education-2026A-20260927/ucore-2026a-build.patch", "sha256": "47950de22450332ea265b179a03ce9bc9b12a1bc83629941f3c27ec08d2ffd9e" }, { "path": "/home/joseph/nf/education-2026A-20260927/ucore-2026a-ch6-observation.patch", "sha256": "46de4f83bf5c8815c455944a32febf39b9748998db18b839950d49a85b624660" } ], "kernel_elf": "/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed/build/kernel", "kernel_elf_sha256": "93a37a4b856ad4051232bb431fa5ca00ff63cf2826b50dc80f79f84e3264e096", "kernel_patch": "diff --git a/Makefile b/Makefile\nindex c335803..cfe7d0c 100644\n--- a/Makefile\n+++ b/Makefile\n@@ -16,7 +16,7 @@ GDB = $(TOOLPREFIX)gdb\n CP = cp\n BUILDDIR = build\n C_SRCS = $(wildcard $K/*.c)\n-AS_SRCS = $(wildcard $K/*.S)\n+AS_SRCS := $(wildcard $K/*.S)\n C_OBJS = $(addprefix $(BUILDDIR)/, $(addsuffix .o, $(basename $(C_SRCS))))\n AS_OBJS = $(addprefix $(BUILDDIR)/, $(addsuffix .o, $(basename $(AS_SRCS))))\n OBJS = $(C_OBJS) $(AS_OBJS)\ndiff --git a/os/kalloc.c b/os/kalloc.c\nindex 3c7c48b..5bea13e 100644\n--- a/os/kalloc.c\n+++ b/os/kalloc.c\n@@ -1,6 +1,7 @@\n #include \"kalloc.h\"\n #include \"defs.h\"\n #include \"riscv.h\"\n+#include \"nftrace.h\"\n \n extern char ekernel[];\n \n@@ -12,6 +13,10 @@ struct {\n \tstruct linklist *freelist;\n } kmem;\n \n+static uint64 nf_free_pages;\n+static uint64 nf_used_pages;\n+static int nftrace_ready;\n+\n void freerange(void *pa_start, void *pa_end)\n {\n \tchar *p;\n@@ -23,6 +28,8 @@ void freerange(void *pa_start, void *pa_end)\n void kinit()\n {\n \tfreerange(ekernel, (void *)PHYSTOP);\n+\tnftrace_ready = 1;\n+\tnftrace_allocator_state(nf_free_pages, nf_used_pages);\n }\n \n // Free the page of physical memory pointed at by v,\n@@ -40,6 +47,11 @@ void kfree(void *pa)\n \tl = (struct linklist *)pa;\n \tl->next = kmem.freelist;\n \tkmem.freelist = l;\n+\tnf_free_pages++;\n+\tif (nftrace_ready) {\n+\t\tnf_used_pages--;\n+\t\tnftrace_page_free((uint64)pa, nf_free_pages, nf_used_pages);\n+\t}\n }\n \n // Allocate one 4096-byte page of physical memory.\n@@ -51,7 +63,11 @@ void *kalloc()\n \tl = kmem.freelist;\n \tif (l) {\n \t\tkmem.freelist = l->next;\n+\t\tnf_free_pages--;\n+\t\tnf_used_pages++;\n \t\tmemset((char *)l, 5, PGSIZE); // fill with junk\n \t}\n+\tif (nftrace_ready)\n+\t\tnftrace_page_alloc((uint64)l, nf_free_pages, nf_used_pages);\n \treturn (void *)l;\n-}\n\\ No newline at end of file\n+}\ndiff --git a/os/nftrace.c b/os/nftrace.c\nnew file mode 100644\nindex 0000000..8d99129\n--- /dev/null\n+++ b/os/nftrace.c\n@@ -0,0 +1,39 @@\n+#include \"nftrace.h\"\n+\n+__attribute__((noinline))\n+void nftrace_commit_point(const struct nftrace_record *record)\n+{\n+\tif (record != 0)\n+\t\t__asm__ volatile(\"\" : : \"r\"(*(volatile const uint64 *)record) : \"memory\");\n+}\n+\n+static inline void emit(uint64 type, uint64 a0, uint64 a1, uint64 a2, uint64 a3)\n+{\n+\tconst struct nftrace_record record = { type, { a0, a1, a2, a3 } };\n+\tnftrace_commit_point(&record);\n+}\n+\n+void nftrace_page_alloc(uint64 pa, uint64 free_pages, uint64 used_pages)\n+{\n+\temit(1, pa, 1, free_pages, used_pages);\n+}\n+\n+void nftrace_page_free(uint64 pa, uint64 free_pages, uint64 used_pages)\n+{\n+\temit(5, pa, 1, free_pages, used_pages);\n+}\n+\n+void nftrace_allocator_state(uint64 free_pages, uint64 used_pages)\n+{\n+\temit(6, free_pages, used_pages, 0, 0);\n+}\n+\n+void nftrace_proc_fork(uint64 parent, uint64 child)\n+{\n+\temit(2, parent, child, 0, 0);\n+}\n+\n+void nftrace_sched_switch(uint64 from_task, uint64 to_task, uint64 from_pid, uint64 to_pid)\n+{\n+\temit(4, from_task, to_task, from_pid, to_pid);\n+}\ndiff --git a/os/nftrace.h b/os/nftrace.h\nnew file mode 100644\nindex 0000000..e1428ae\n--- /dev/null\n+++ b/os/nftrace.h\n@@ -0,0 +1,18 @@\n+#ifndef NFTRACE_H\n+#define NFTRACE_H\n+\n+#include \"types.h\"\n+\n+struct nftrace_record {\n+\tuint64 type;\n+\tuint64 a[4];\n+};\n+\n+void nftrace_commit_point(const struct nftrace_record *record);\n+void nftrace_page_alloc(uint64 pa, uint64 free_pages, uint64 used_pages);\n+void nftrace_page_free(uint64 pa, uint64 free_pages, uint64 used_pages);\n+void nftrace_allocator_state(uint64 free_pages, uint64 used_pages);\n+void nftrace_proc_fork(uint64 parent, uint64 child);\n+void nftrace_sched_switch(uint64 from_task, uint64 to_task, uint64 from_pid, uint64 to_pid);\n+\n+#endif\ndiff --git a/os/proc.c b/os/proc.c\nindex 6aa7fbb..e394800 100644\n--- a/os/proc.c\n+++ b/os/proc.c\n@@ -4,6 +4,7 @@\n #include \"trap.h\"\n #include \"vm.h\"\n #include \"queue.h\"\n+#include \"nftrace.h\"\n \n struct proc pool[NPROC];\n __attribute__((aligned(16))) char kstack[NPROC][PAGE_SIZE];\n@@ -145,6 +146,7 @@ void scheduler()\n \t\ttracef(\"swtich to proc %d\", p - pool);\n \t\tp->state = RUNNING;\n \t\tcurrent_proc = p;\n+\t\tnftrace_sched_switch((uint64)&idle, (uint64)p, (uint64)-1, p->pid);\n \t\tswtch(&idle.context, &p->context);\n \t}\n }\n@@ -161,6 +163,7 @@ void sched()\n \tstruct proc *p = curr_proc();\n \tif (p->state == RUNNING)\n \t\tpanic(\"sched running\");\n+\tnftrace_sched_switch((uint64)p, (uint64)&idle, p->pid, (uint64)-1);\n \tswtch(&p->context, &idle.context);\n }\n \n@@ -227,6 +230,7 @@ int fork()\n \tnp->parent = p;\n \tnp->state = RUNNABLE;\n \tadd_task(np);\n+\tnftrace_proc_fork(p->pid, np->pid);\n \treturn np->pid;\n }\n \ndiff --git a/os/vm.c b/os/vm.c\nindex 8e20fab..5b5a5e1 100644\n--- a/os/vm.c\n+++ b/os/vm.c\n@@ -3,6 +3,12 @@\n #include \"plic.h\"\n #include \"riscv.h\"\n \n+__attribute__((noinline))\n+void nodefusion_pagetable_map(uint64 va, uint64 pa, uint64 flags)\n+{\n+\t__asm__ volatile(\"\" : : \"r\"(va), \"r\"(pa), \"r\"(flags) : \"memory\");\n+}\n+\n pagetable_t kernel_pagetable;\n \n extern char e_text[]; // kernel.ld sets this to end of kernel code.\n@@ -131,6 +137,7 @@ int mappages(pagetable_t pagetable, uint64 va, uint64 size, uint64 pa, int perm)\n \t\t\treturn -1;\n \t\t}\n \t\t*pte = PA2PTE(pa) | perm | PTE_V;\n+\t\tnodefusion_pagetable_map(a, pa, perm | PTE_V);\n \t\tif (a == last)\n \t\t\tbreak;\n \t\ta += PGSIZE;\n@@ -407,4 +414,3 @@ uint64 uvmdealloc(pagetable_t pagetable, uint64 oldsz, uint64 newsz)\n \n return newsz;\n }\n-\n", "user_patch": "diff --git a/CMakeLists.txt b/CMakeLists.txt\nindex f5a9fac..ab1986d 100644\n--- a/CMakeLists.txt\n+++ b/CMakeLists.txt\n@@ -15,12 +15,12 @@ set(ASM_DIR asm)\n set(BIN_DIR bin)\n \n # Toolchain\n-set(PREFIX ${ARCH}-linux-musl-)\n+set(PREFIX ${ARCH}-linux-musl- CACHE STRING \"Cross compiler prefix\")\n \n if (${ARCH} STREQUAL riscv32)\n- set(CMAKE_C_FLAGS \"-march=rv32imac -mabi=ilp32 -mcmodel=medany\")\n+ set(CMAKE_C_FLAGS \"-march=rv32imac_zicsr_zifencei -mabi=ilp32 -mcmodel=medany\")\n elseif (${ARCH} STREQUAL riscv64)\n- set(CMAKE_C_FLAGS \"-march=rv64imac -mabi=lp64 -mcmodel=medany\")\n+ set(CMAKE_C_FLAGS \"-march=rv64imac_zicsr_zifencei -mabi=lp64 -mcmodel=medany\")\n else()\n message(\"Unsupported arch: ${ARCH}\")\n endif ()\ndiff --git a/Makefile b/Makefile\nindex be632ac..64f1ab6 100644\n--- a/Makefile\n+++ b/Makefile\n@@ -7,15 +7,16 @@ app_dir = src\n elf_dir := build/$(ARCH)\n bin_dir := build/bin\n out_dir := target\n-cmake_build_args := -DARCH=$(ARCH) -DCHAPTER=$(CHAPTER)\n+TOOLPREFIX ?= $(ARCH)-linux-musl-\n+cmake_build_args := -DARCH=$(ARCH) -DCHAPTER=$(CHAPTER) -DPREFIX=$(TOOLPREFIX)\n ifeq ($(MODE), release)\n cmake_build_args += -DCMAKE_BUILD_TYPE=Release\n else ifeq ($(MODE), debug)\n cmake_build_args += -DCMAKE_BUILD_TYPE=Debug\n endif\n \n-OBJCOPY := $(ARCH)-linux-musl-objcopy\n-OBJDUMP := $(ARCH)-linux-musl-objdump\n+OBJCOPY := $(TOOLPREFIX)objcopy\n+OBJDUMP := $(TOOLPREFIX)objdump\n CP := cp\n CH_TESTS := \n \ndiff --git a/src/ch6b_exec.c b/src/ch6b_exec.c\nindex 1a1d9c6..b67cf35 100644\n--- a/src/ch6b_exec.c\n+++ b/src/ch6b_exec.c\n@@ -5,7 +5,7 @@\n int main()\n {\n \tchar *_argv[] = {\n-\t\t\"(*o*)\", \"(>.<)\", \"(O.O)\", \"(QwQ)\", \"orz\", \"没有了呀\"\n+\t\t\"(*o*)\", \"(>.<)\", \"(O.O)\", \"(QwQ)\", \"orz\", \"没有了呀\", NULL\n \t};\n \texec(\"ch6b_args\", _argv);\n \treturn 0;\ndiff --git a/src/ch6b_filetest_simple.c b/src/ch6b_filetest_simple.c\nindex 062cecf..a27e982 100644\n--- a/src/ch6b_filetest_simple.c\n+++ b/src/ch6b_filetest_simple.c\n@@ -15,7 +15,9 @@ int main()\n \tfd = open(filea, O_RDONLY);\n \tassert(fd > 0);\n \tchar buf[16];\n-\tread(fd, buf, 16);\n+\tint nread = read(fd, buf, sizeof(buf) - 1);\n+\tassert_eq(nread, strlen(s));\n+\tbuf[nread] = '\\0';\n \tclose(fd);\n \tassert(strcmp(s, buf) == 0);\n \tputs(\"file_test passed!\");\ndiff --git a/src/ch6b_usertest.c b/src/ch6b_usertest.c\nindex cdd9fc8..1cb5f3a 100644\n--- a/src/ch6b_usertest.c\n+++ b/src/ch6b_usertest.c\n@@ -11,7 +11,7 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\",\t \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_getpid\\0\",\t \"ch5b_forktest0\\0\",\n \t\"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\", \"ch5b_exit\\0\",\n-\t\"ch6b_filetest\\0\", \"ch6b_exec\\0\",\n+\t\"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\",\n };\n \n int main()\ndiff --git a/src/ch7b_usertest.c b/src/ch7b_usertest.c\nindex 1f634d4..8bfc7c8 100644\n--- a/src/ch7b_usertest.c\n+++ b/src/ch7b_usertest.c\n@@ -10,7 +10,7 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\",\t \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_exit\\0\",\t \"ch5b_getpid\\0\",\n \t\"ch5b_forktest0\\0\", \"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\",\n-\t\"ch5b_exit\\0\",\t \"ch6b_filetest\\0\", \"ch6b_exec\\0\",\n+\t\"ch5b_exit\\0\",\t \"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\",\n \t\"ch7b_pipetest\\0\",\n };\n \ndiff --git a/src/ch8b_usertest.c b/src/ch8b_usertest.c\nindex 1cce5ce..f088c38 100644\n--- a/src/ch8b_usertest.c\n+++ b/src/ch8b_usertest.c\n@@ -10,9 +10,9 @@ const char *TESTS[] = {\n \t\"ch3b_sleep1\\0\", \"ch3b_yield0\\0\", \"ch3b_yield1\\0\",\n \t\"ch3b_yield2\\0\", \"ch5b_getpid\\0\", \"ch5b_forktest0\\0\",\n \t\"ch5b_forktest1\\0\", \"ch5b_forktest2\\0\", \"ch5b_exit\\0\",\n-\t\"ch6b_filetest\\0\", \"ch6b_exec\\0\", \"ch7b_pipetest\\0\",\n+\t\"ch6b_filetest_simple\\0\", \"ch6b_exec\\0\", \"ch7b_pipetest\\0\",\n 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"ch5b_forktest0", "ch5b_forktest1", "ch5b_forktest2", "ch5b_getpid", "ch5b_usertest", "ch6b_args", "ch6b_assert", "ch6b_cat", "ch6b_exec", "ch6b_filetest", "ch6b_filetest_", "ch6b_panic", "ch6b_usertest", "usershell" ], "added_files": [ { "name": "filea", "inode": 26, "size": 14, "type": 2, "nlink": null, "sha256": "d9014c4624844aa5bac314773d6b689ad467fa4e1d1a50a1b8a99d5a95f72ff5", "data_block_ids": [ 192 ] } ], "removed_files": [], "changed_files": [] }, "filesystem_chain_examples": [ { "frames": [ "readi", "bmap" ], "retained_occurrences": 72 }, { "frames": [ "kerneltrap", "devintr", "virtio_disk_intr" ], "retained_occurrences": 68 }, { "frames": [ "readi", "bread" ], "retained_occurrences": 65 }, { "frames": [ "usertrap", "syscall", "sys_exec", "exec", "namei", "dirlookup", "readi" ], "retained_occurrences": 5 }, { "frames": [ "bwrite", "virtio_disk_rw" ], "retained_occurrences": 5 }, { "frames": [ "init_stdio", "stdio_init", "filealloc" ], "retained_occurrences": 3 }, { "frames": [ "usertrap", "syscall", "sys_exec", "exec", "namei", "dirlookup", "readi", "bmap" ], "retained_occurrences": 2 }, { "frames": [ "usertrap", "syscall", "sys_openat", "fileopen" ], "retained_occurrences": 2 }, { "frames": [ "usertrap", "syscall", "sys_close", "fileclose", "iput" ], "retained_occurrences": 2 }, { "frames": [ "dirlookup", "readi" ], "retained_occurrences": 1 }, { "frames": [ "dirlookup", "readi", "bmap" ], "retained_occurrences": 1 }, { "frames": [ "show_all_files", "root_dir" ], "retained_occurrences": 1 }, { "frames": [ "show_all_files", "root_dir", "iget" ], "retained_occurrences": 1 }, { "frames": [ "show_all_files", "root_dir", "ivalid" ], "retained_occurrences": 1 }, { "frames": [ "show_all_files", "dirls" ], "retained_occurrences": 1 }, { "frames": [ "show_all_files", "dirls", "readi", "bread" ], "retained_occurrences": 1 }, { "frames": [ "usertrap", "syscall", "sys_openat", "fileopen", "root_dir" ], "retained_occurrences": 1 }, { "frames": [ "usertrap", "syscall", "sys_openat", "fileopen", "root_dir", "iget" ], "retained_occurrences": 1 }, { "frames": [ "usertrap", "syscall", "sys_openat", "fileopen", "root_dir", "ivalid" ], "retained_occurrences": 1 }, { "frames": [ "usertrap", "syscall", "sys_openat", "fileopen", "ivalid" ], "retained_occurrences": 1 } ], "state_count": 4663, "coverage": { "status": "complete", "percent": 100.0, "passed": 2374681, "total": 2374681, "metrics": { "covered": 18, "applicable": 18, "not_applicable": [ "log_commits" ], "missing": [], "sampled": [] }, "semantic_events": { "raw": 2240961, "unknown": 0, "unknown_fields": {}, "dropped_from_interactive": 2115961 }, "snapshots": { "checked": 4663, "incomplete": 0, "physical_memory": 0, "physical_counters": 0, "processes": 0, "resources": 0, "pre_initialization": { "physical_memory": 0, "physical_counters": 2042, "processes": 0, "resources": 0 } }, "snapshot_not_applicable": [], "manifest_fields": { "cells": 98434, "states": { "absent": 7031, "empty": 4282, "present": 87121 }, "not_applicable": 7031, "unresolved": 0 }, "full_watch_scope": true, "function_watch_drops": 0, "function_stacks_available": true, "observation_points": { "unresolved": [], "reported_missing": 18, "layout_missing": [] }, "blockers": [] } }, "report": { "schema": "nodefusion.artifact-evidence/1", "run": "ucore-2026A-ch6-basic-observed", "kernel_kind": "ucore", "source_sha256": { "trace.nfb": "559ea5edf6e710050164d059e0fcac233343aff696b86b607d3d24c4a4b389d6", "manifest.json": "696e0b288ad918ba51653fcc064a34101e7a827f55648c0934f225b079ea4fd3", "watchlist.json": "d6ad892de006cece06744bd31b73534274caa99ce2d40deaa16949a6a23ca124", "kernel_layout.json": "a29a2d2aa7e2e1631d906b130289742d8f675228c9426b0f786f9e5f5a647de2" }, "kernel_elf_sha256": "93a37a4b856ad4051232bb431fa5ca00ff63cf2826b50dc80f79f84e3264e096", "archive_bytes": { "trace.nfb": 1472524357, "kernel_elf": 151408 }, "html_sha256": "27cd13350cc846dea34ea57e6d1206130118d4d80ac2e0786eb3aac50358d8b6", "html_bytes": 2923078, "function_trace": { "kind": "return-matched observed frames", "raw": 6830681, "retained": 106783, "returns": 7830906, "matched_returns": 5277996, "nested_entries": 5176424 }, "event_selection": { "applied": true, "policy": "kind-preserving/systematic-v5", "raw": 7612572, "retained": 150000, "dropped": 7462572, "target_limit": 150000, "minimum_spare": 25000, "always_keep": "all events of kinds whose count fits their per-kind budget", "priority_raw": 2240961, "spare_raw": 5371611, "semantic_budget": 125000, "minimum_per_kind": 64, "semantic_kind_budgets": { "bcache.get": 95, "bcache.init": 1, "bcache.read": 95, "bcache.release": 95, "bcache.write": 8, "disk.balloc": 1, "disk.interrupt": 68, "disk.io": 68, "file.alloc": 5, "file.close": 71, "file.read": 1, "file.write": 1, "firmware.trap": 19, "inode.alloc": 1, "inode.bmap": 92, "inode.dirlookup": 24, "inode.get": 47, "inode.namei": 22, "inode.put": 24, "inode.read": 86, "inode.update": 3, "inode.write": 2, "interrupt.clock": 79, "interrupt.dispatch": 86, "interrupt.external": 68, "interrupt.timer": 79, "kernel.shutdown": 1, "pagetable.map": 1899, "phys.alloc": 95, "phys.free": 92, "proc.alloc": 63, "proc.exec": 20, "proc.exit": 63, "proc.fork": 62, "proc.free": 63, "proc.initproc": 1, "proc.wait": 64, "sbi.call": 378, "sched.enter": 1, "sched.switch": 28276, "sched.yield": 7112, "sched.yield_to_scheduler": 14168, "syscall.close": 2, "syscall.dispatch": 14149, "syscall.enter": 14148, "syscall.exec": 20, "syscall.fork": 62, "syscall.open": 2, "syscall.read": 1, "syscall.waitpid": 64, "syscall.write": 70, "trap.init": 1, "trap.kerneltrap": 68, "trap.userret": 14167, "trap.usertrap": 14167, "vm.copy": 62, "vm.copyin": 1, "vm.copyout": 7095, "vm.free": 63, "vm.from_elf": 21, "vm.init": 1, "vm.kernel_init": 1, "vm.map": 82, "vm.translate_buffer": 7110, "vm.translate_str": 72, "vm.unmap": 72 }, "diagnostic_kind_budgets": { "func.add_task": 1163, "func.allocpid": 63, "func.clean_bss": 1, "func.console_putchar": 87, "func.console_write": 64, "func.consputc": 69, "func.cpuid": 64, "func.curr_proc": 6107, "func.dirlink": 1, "func.dirls": 1, "func.dummy": 7753, "func.either_copyin": 2, "func.either_copyout": 67, "func.fdalloc": 2, "func.fetch_task": 1163, "func.fileopen": 2, "func.free_desc": 65, "func.freepagetable": 63, "func.freerange": 1, "func.freewalk": 65, "func.fsinit": 1, "func.get_cycle": 612, "func.init_queue": 1, "func.init_stdio": 1, "func.ivalid": 50, "func.kinit": 1, "func.kvmmap": 5, "func.load_init_app": 1, "func.main": 1, "func.memmove": 615, "func.memset": 204, "func.nftrace_allocator_state": 1, "func.nftrace_page_alloc": 66, "func.nftrace_page_free": 67, "func.nftrace_proc_fork": 62, "func.nftrace_sched_switch": 2261, "func.plic_claim": 65, "func.plic_complete": 64, "func.plicinit": 1, "func.pop_queue": 1162, "func.printf": 48, "func.printint": 47, "func.push_argv": 21, "func.push_queue": 1162, "func.root_dir": 24, "func.set_next_timer": 65, "func.show_all_files": 1, "func.stdio_init": 3, "func.strlen": 14, "func.strncmp": 64, "func.strncpy": 1, "func.sys_getpid": 2, "func.sys_getppid": 2, "func.sys_gettimeofday": 611, "func.threadid": 2, "func.timer_init": 1, "func.useraddr": 64, "func.uvmcreate": 63, "func.virtio_disk_init": 1, "func.walk": 760 }, "minimum_per_diagnostic_kind": 64, "semantic_retained": 125000, "spare_budget": 25000, "stride": null, "retained_kinds": { "bcache.get": 95, "bcache.init": 1, "bcache.read": 95, "bcache.release": 95, "bcache.write": 8, "disk.balloc": 1, "disk.interrupt": 68, "disk.io": 68, "file.alloc": 5, "file.close": 71, "file.read": 1, "file.write": 1, "firmware.trap": 19, "func.add_task": 1163, "func.allocpid": 63, "func.clean_bss": 1, "func.console_putchar": 87, "func.console_write": 64, "func.consputc": 69, "func.cpuid": 64, "func.curr_proc": 6107, "func.dirlink": 1, "func.dirls": 1, "func.dummy": 7753, "func.either_copyin": 2, "func.either_copyout": 67, "func.fdalloc": 2, "func.fetch_task": 1163, "func.fileopen": 2, "func.free_desc": 65, "func.freepagetable": 63, "func.freerange": 1, "func.freewalk": 65, "func.fsinit": 1, "func.get_cycle": 612, "func.init_queue": 1, "func.init_stdio": 1, "func.ivalid": 50, "func.kinit": 1, "func.kvmmap": 5, "func.load_init_app": 1, "func.main": 1, "func.memmove": 615, "func.memset": 204, "func.nftrace_allocator_state": 1, "func.nftrace_page_alloc": 66, "func.nftrace_page_free": 67, "func.nftrace_proc_fork": 62, "func.nftrace_sched_switch": 2261, "func.plic_claim": 65, "func.plic_complete": 64, "func.plicinit": 1, "func.pop_queue": 1162, "func.printf": 48, "func.printint": 47, "func.push_argv": 21, "func.push_queue": 1162, "func.root_dir": 24, "func.set_next_timer": 65, "func.show_all_files": 1, "func.stdio_init": 3, "func.strlen": 14, "func.strncmp": 64, "func.strncpy": 1, "func.sys_getpid": 2, "func.sys_getppid": 2, "func.sys_gettimeofday": 611, "func.threadid": 2, "func.timer_init": 1, "func.useraddr": 64, "func.uvmcreate": 63, "func.virtio_disk_init": 1, "func.walk": 760, "inode.alloc": 1, "inode.bmap": 92, "inode.dirlookup": 24, "inode.get": 47, "inode.namei": 22, "inode.put": 24, "inode.read": 86, "inode.update": 3, "inode.write": 2, "interrupt.clock": 79, "interrupt.dispatch": 86, "interrupt.external": 68, "interrupt.timer": 79, "kernel.shutdown": 1, "pagetable.map": 1899, "phys.alloc": 95, "phys.free": 92, "proc.alloc": 63, "proc.exec": 20, "proc.exit": 63, "proc.fork": 62, "proc.free": 63, "proc.initproc": 1, "proc.wait": 64, "sbi.call": 378, "sched.enter": 1, "sched.switch": 28276, "sched.yield": 7112, "sched.yield_to_scheduler": 14168, "syscall.close": 2, "syscall.dispatch": 14149, "syscall.enter": 14148, "syscall.exec": 20, "syscall.fork": 62, "syscall.open": 2, "syscall.read": 1, "syscall.waitpid": 64, "syscall.write": 70, "trap.init": 1, "trap.kerneltrap": 68, "trap.userret": 14167, "trap.usertrap": 14167, "vm.copy": 62, "vm.copyin": 1, "vm.copyout": 7095, "vm.free": 63, "vm.from_elf": 21, "vm.init": 1, "vm.kernel_init": 1, "vm.map": 82, "vm.translate_buffer": 7110, "vm.translate_str": 72, "vm.unmap": 72 }, "dropped_kinds": { "bcache.get": 541, "bcache.read": 541, "bcache.release": 541, "disk.interrupt": 70, "disk.io": 70, "file.close": 120, "func.add_task": 257062, "func.console_putchar": 5405, "func.console_write": 116, "func.consputc": 1173, "func.cpuid": 213, "func.curr_proc": 1414311, "func.dummy": 1799447, "func.either_copyout": 511, "func.fetch_task": 257063, "func.free_desc": 349, "func.freewalk": 250, "func.get_cycle": 128114, "func.memmove": 128933, "func.memset": 32766, "func.nftrace_page_alloc": 569, "func.nftrace_page_free": 497, "func.nftrace_sched_switch": 514189, "func.plic_claim": 73, "func.plic_complete": 74, "func.pop_queue": 257064, "func.push_queue": 257063, "func.set_next_timer": 265, "func.strncmp": 193, "func.sys_gettimeofday": 128115, "func.useraddr": 10, "func.walk": 162786, "inode.bmap": 488, "inode.read": 383, "interrupt.clock": 251, "interrupt.dispatch": 381, "interrupt.external": 70, "interrupt.timer": 250, "pagetable.map": 31758, "phys.alloc": 540, "phys.free": 472, "proc.wait": 3, "sbi.call": 5445, "sched.switch": 488174, "sched.yield": 121956, "sched.yield_to_scheduler": 244057, "syscall.dispatch": 243722, "syscall.enter": 243723, "syscall.waitpid": 3, "syscall.write": 111, "trap.kerneltrap": 74, "trap.userret": 244029, "trap.usertrap": 244029, "vm.copyout": 121660, "vm.map": 298, "vm.translate_buffer": 121928, "vm.translate_str": 136, "vm.unmap": 137 } }, "coverage": { "status": "complete", "percent": 100.0, "passed": 2374681, "total": 2374681, "metrics": { "covered": 18, "applicable": 18, "not_applicable": [ "log_commits" ], "missing": [], "sampled": [] }, "semantic_events": { "raw": 2240961, "unknown": 0, "unknown_fields": {}, "dropped_from_interactive": 2115961 }, "snapshots": { "checked": 4663, "incomplete": 0, "physical_memory": 0, "physical_counters": 0, "processes": 0, "resources": 0, "pre_initialization": { "physical_memory": 0, "physical_counters": 2042, "processes": 0, "resources": 0 } }, "snapshot_not_applicable": [], "manifest_fields": { "cells": 98434, "states": { "absent": 7031, "empty": 4282, "present": 87121 }, "not_applicable": 7031, "unresolved": 0 }, "full_watch_scope": true, "function_watch_drops": 0, "function_stacks_available": true, "observation_points": { "unresolved": [], "reported_missing": 18, "layout_missing": [] }, "blockers": [] }, "source_view": { "run": "ucore-2026A-ch6-basic-observed", "files": 20, "locations": 348, "revision": "df045c4455f2dacb81caf39510aed994bf49ade7" } }, "console_sha256": "2e9da2d8d58548d0622f4ace3fce450c609f82f7ec3048c336ed00d10f12dbd4", "outcome": "completed", "trace_complete": true, "started_utc": "2026-09-27T16:18:57.797670+00:00", "qemu_command": "cd \"/home/joseph/nf/education-2026A-20260927/ucore-ch6-observed\" && exec qemu-system-riscv64 -machine virt -bios default -kernel build/kernel -m 128M -drive file=nfs/fs-copy.img,if=none,format=raw,id=x0 -device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0 -smp 1 -nographic -qmp tcp:127.0.0.1:55233,server=on,wait=off -plugin /home/joseph/nf/education-2026A-20260927/tool/nodefusion/plugin/libnf.so,out=/home/joseph/nf/education-2026A-20260927/runs/ucore-2026A-ch6-basic-observed/trace.nfb,sample=200000,snap=200000,maxram=268435456,returns=1,snapstart=0,bootsnap=0,ramsize=134217728,watch=/home/joseph/nf/education-2026A-20260927/runs/ucore-2026A-ch6-basic-observed/watchlist.txt -icount shift=3", "archive": { "run_path": "/home/joseph/nf/education-2026A-20260927/runs/ucore-2026A-ch6-basic-observed", "trace_sha256": "559ea5edf6e710050164d059e0fcac233343aff696b86b607d3d24c4a4b389d6", "trace_bytes": 1472524357 } }