{ "schema": "nodefusion.education-recording/1", "course": "2026A", "chapter": 2, "variant": "stack-fixed", "run": "ucore-2026A-ch2-stack-fixed", "html": "ucore-2026A-ch2-stack-fixed.html", "source": { "kernel_commit": "729e1ad1632bb639dfe546f34765c0537b503990", "kernel_patch": "diff --git a/Makefile b/Makefile\nindex 78ca828..d6fec57 100644\n--- a/Makefile\n+++ b/Makefile\n@@ -17,7 +17,7 @@ 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/trap.c b/os/trap.c\nindex 08b365a..79dd181 100644\n--- a/os/trap.c\n+++ b/os/trap.c\n@@ -59,7 +59,7 @@ void usertrap(struct trapframe *trapframe)\n void usertrapret(struct trapframe *trapframe, uint64 kstack)\n {\n \ttrapframe->kernel_satp = r_satp(); // kernel page table\n-\ttrapframe->kernel_sp = kstack + PGSIZE; // process's kernel stack\n+\ttrapframe->kernel_sp = kstack; // Batch callers pass boot_stack_top.\n \ttrapframe->kernel_trap = (uint64)usertrap;\n \ttrapframe->kernel_hartid = r_tp(); // hartid for cpuid()\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": "b1c4a595a54058841630ba7b18818688efd00b8085b03ca91767208ec3b499e8", "patch": "diff --git a/nodefusion/host/analyze.py b/nodefusion/host/analyze.py\nindex a6ca1e7..31b6599 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" }, { "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": "686eb2a0502ff95e386aa567e6f730375f2ff272949ea3687395e3e36daa25ec", "patch": "diff --git a/nodefusion/manifests/rcore.toml b/nodefusion/manifests/rcore.toml\nindex 3579114..af0fd26 100644\n--- a/nodefusion/manifests/rcore.toml\n+++ b/nodefusion/manifests/rcore.toml\n@@ -1550,3 +1550,35 @@ 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": "b08a4f8edac1a7fbd40397ed8c21217cf8dfb03ba9fad496142892f59e4bd5f8", "patch": "diff --git a/nodefusion/manifests/ucore.toml b/nodefusion/manifests/ucore.toml\nindex 4312842..ce8c88f 100644\n--- a/nodefusion/manifests/ucore.toml\n+++ b/nodefusion/manifests/ucore.toml\n@@ -33,14 +33,23 @@ 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@@ -112,6 +121,53 @@ 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 +320,20 @@ 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 +517,7 @@ 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 +535,11 @@ 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" } ], "deployed_source_files": { "nodefusion/__init__.py": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", "nodefusion/_vendor/elftools/__init__.py": 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"aed10d1eedc5689b6fd68e84a9bb8ae0c98f7bb8456fd8bd280e8bae470b8e9a" }, "plugin_sha256": "f1d1d8e375ed789b57f0fa06285da182b90951324e09e3f0c3716a38353112f2", "source_archive": { "path": "/home/joseph/nf/education-2026A-20260927/ucore-2026A-ch2-stack-fixed-source.tar.gz", "sha256": "66a9ff48dff818cdef7265cd1427193766fcdaeb1a9932ddcbeeafe8297f4b50", "bytes": 904035 } }, "workload": { "mode": "official-base-programs", "user_programs": { "ch2b_exit": "d5f782b3a4c7c8868f1437640b1db6ecf8d1756528d2f30ca4790a64b44df87f", "ch2b_hello_world": "c85f28841c584cea2f36cb5c25505194c5ad9e4c95f1f162af4b5a3ede3aaf10", "ch2b_power": "cef5bdbdddea4db273948d7f0c3bfd476dab08a31ae18afb8b06da44c095face" } }, "versions": { "riscv64-unknown-elf-gcc": "riscv64-unknown-elf-gcc (Debian 14.2.0-19) 14.2.0", "cmake": "cmake version 3.31.6", "qemu-system-riscv64": "QEMU emulator version 10.2.2" }, "build_context": { "kernel_commit": "729e1ad1632bb639dfe546f34765c0537b503990", "kernel_elf_sha256": "c52bfee124fa3110baed1a67eaf12a9442ea514bbe997e07675060bc0b5b64b3", "kernel_patch": "diff --git a/Makefile b/Makefile\nindex 78ca828..d6fec57 100644\n--- a/Makefile\n+++ b/Makefile\n@@ -17,7 +17,7 @@ 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/trap.c b/os/trap.c\nindex 08b365a..79dd181 100644\n--- a/os/trap.c\n+++ b/os/trap.c\n@@ -59,7 +59,7 @@ void usertrap(struct trapframe *trapframe)\n void usertrapret(struct trapframe *trapframe, uint64 kstack)\n {\n \ttrapframe->kernel_satp = r_satp(); // kernel page table\n-\ttrapframe->kernel_sp = kstack + PGSIZE; // process's kernel stack\n+\ttrapframe->kernel_sp = kstack; // Batch callers pass boot_stack_top.\n \ttrapframe->kernel_trap = (uint64)usertrap;\n \ttrapframe->kernel_hartid = r_tp(); // hartid for cpuid()\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", "selected_apps": { "ch2b_exit": "d5f782b3a4c7c8868f1437640b1db6ecf8d1756528d2f30ca4790a64b44df87f", "ch2b_hello_world": "c85f28841c584cea2f36cb5c25505194c5ad9e4c95f1f162af4b5a3ede3aaf10", "ch2b_power": "cef5bdbdddea4db273948d7f0c3bfd476dab08a31ae18afb8b06da44c095face" }, "commands": [ { "argv": [ "make", "build", "LOG=debug" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch2-stack-fixed" }, { "argv": [ "qemu-system-riscv64", "-nographic", "-machine", "virt", "-m", "128M", "-smp", "1", "-bios", "default", "-kernel", "build/kernel" ], "cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch2-stack-fixed" } ], "qemu_exit": 0, "qemu_log_sha256": "3f8e198c86d728a552ce8944ed92b53cf4c288434eb4b9a63e610ef2d5df4ac3", "driver_sha256": "790d6c3fa198fe3a9331bf28e938c2285619387026fe457c0b23c2f332cd97e8", "stack_patch_sha256": "39dae03d60570c64041c8f008d8e72ce018409647eb29126f4bc4b665306d71e", "reference_kernel_elf_sha256": "c1f9fd52efc7b4c11a70e0c03788cb61dc3db304d62e60c31957ebb49c171c64" }, "build_command": [ "make", "build", "LOG=debug" ], "build_cwd": "/home/joseph/nf/education-2026A-20260927/ucore-ch2-stack-fixed", "record_command": [ "/home/joseph/nf/venv313/bin/python", "-m", "nodefusion.host.cli", "record", "--kernel", "/home/joseph/nf/education-2026A-20260927/ucore-ch2-stack-fixed", "--kernel-kind", "ucore", "--runs", "/home/joseph/nf/education-2026A-20260927/runs", "--name", "ucore-2026A-ch2-stack-fixed", "--no-build", "--function-returns", "--watch-all", "--profile", "uniform", "--snapshots", "80", "--max-ram-bytes", "268435456", "--timeout", "60", "--no-render", "--event-stream", "never" ], "record_cwd": "/home/joseph/nf/education-2026A-20260927/tool", "analysis_command": [ "/home/joseph/nf/venv313/bin/python", "-m", "scripts.regenerate_artifact", "--run", "/home/joseph/nf/education-2026A-20260927/runs/ucore-2026A-ch2-stack-fixed", "--out", "/home/joseph/nf/education-2026A-20260927/runs/ucore-2026A-ch2-stack-fixed/ucore-2026A-ch2-stack-fixed.html", "--strict" ], "analysis_cwd": "/home/joseph/nf/education-2026A-20260927/tool", "record_driver_sha256": "27974e61e78d7b63c7e8403c1abd9c8f0e06323af6424317400d798ee993a543", "batch_analysis_command": [ "/home/joseph/nf/venv313/bin/python", "/home/joseph/nf/education-2026A-20260927/inspect-ch2.py", "ucore-2026A-ch2-stack-fixed", "batch-observations-kernel.json" ], "batch_analysis_script_sha256": "52d2bf2f0c9a84d595ac2da739f154cde215ab44a239a49f6e525f9463b51c01", "batch_analysis_sha256": "57611437ddb342072dc32ddde8604a81954b4010c38e8fa04b5f683050b5bc1c", "started_utc": "2026-09-27T12:22:03.488184+00:00", "outcome": "completed", "trace_complete": true, "qemu_command": "cd \"/home/joseph/nf/education-2026A-20260927/ucore-ch2-stack-fixed\" && exec qemu-system-riscv64 -machine virt -bios default -kernel build/kernel -m 128M -smp 1 -nographic -qmp tcp:127.0.0.1:48981,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-ch2-stack-fixed/trace.nfb,sample=200000,snap=1000000,maxram=268435456,returns=1,snapstart=0,bootsnap=0,ramsize=134217728,watch=/home/joseph/nf/education-2026A-20260927/runs/ucore-2026A-ch2-stack-fixed/watchlist.txt -icount shift=3", "archive": { "run_path": "/home/joseph/nf/education-2026A-20260927/runs/ucore-2026A-ch2-stack-fixed", "trace_sha256": "beebf63e822eeed4f4ef2297034eaef10a1507bba8b019d63763e056918f0a98", "trace_bytes": 12354939 }, "observations": { "run": "ucore-2026A-ch2-stack-fixed", "outcome": "completed", "trace_complete": true, "symbols": { "app_info_ptr": { "address": 2149691392, "size": 8 }, "app_cur": { "address": 2149691404, "size": 4 }, "app_num": { "address": 2149691400, "size": 4 }, "boot_stack_top": { "address": 2149683200, "size": 0 }, "user_stack": { "address": 2149687296, "size": 4096 }, "trap_page": { "address": 2149683200, "size": 4096 }, "boot_stack": { "address": 2149617664, "size": 0 } }, "function_counts": { "main": 1, "clean_bss": 1, "memset": 7, "printf": 24, "consputc": 1226, "console_putchar": 1429, "trap_init": 1, "loader_init": 1, "run_next_app": 4, "threadid": 22, "printint": 89, "load_app": 3, "memmove": 3, "usertrapret": 16, "usertrap": 16, "syscall": 16, "dummy": 29, "sys_exit": 3, "sys_write": 13, "shutdown": 1 }, "entries": { "memset": [ { "insn": 10762863, "pc": 2149582170, "sp": 2149683168, "ra": 2149581380, "a": [ 2149683200, 0, 12288, 1, 0, 1, 5, 7 ], "priv": 1 }, { "insn": 10820278, "pc": 2149582170, "sp": 2149683120, "ra": 2149581042, "a": [ 2151677952, 0, 131072, 2149682913, 0, 2149585012, 2149585632, 1 ], "priv": 1 }, { "insn": 11283767, "pc": 2149582170, "sp": 2149683152, "ra": 2149581266, "a": [ 2149683200, 0, 4096, 2149682913, 2149683136, 2149585061, 2149585632, 1 ], "priv": 1 }, { "insn": 11324890, "pc": 2149582170, "sp": 2149683024, "ra": 2149581042, "a": [ 2151677952, 0, 131072, 2149682817, 1, 2149585012, 2149585632, 1 ], "priv": 1 }, { "insn": 11788379, "pc": 2149582170, "sp": 2149683056, "ra": 2149581266, "a": [ 2149683200, 0, 4096, 2149682817, 2149683040, 2149585061, 2149585632, 1 ], "priv": 1 }, { "insn": 11903343, "pc": 2149582170, "sp": 2149683024, "ra": 2149581042, "a": [ 2151677952, 0, 131072, 2149682817, 2, 2149585012, 2149585632, 1 ], "priv": 1 }, { "insn": 12360397, "pc": 2149582170, "sp": 2149683056, "ra": 2149581266, "a": [ 2149683200, 0, 4096, 2149682817, 2149683040, 2149585061, 2149585632, 1 ], "priv": 1 } ], "run_next_app": [ { "insn": 10805215, "pc": 2149581078, "sp": 2149683184, "ra": 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