{ "schema": "nodefusion.education-recording/1", "course": "2026A", "chapter": 4, "variant": "observed", "run": "rcore-2026A-ch4-observed", "html": "rcore-2026A-ch4-observed.html", "source": { "kernel_commit": "ef2dfc4c23c70a1eb4c6a0b30feb694b2d09a73d", "kernel_patch": "diff --git a/os/src/mm/frame_allocator.rs b/os/src/mm/frame_allocator.rs\nindex 01e62fd..6a3f192 100644\n--- a/os/src/mm/frame_allocator.rs\n+++ b/os/src/mm/frame_allocator.rs\n@@ -8,6 +8,34 @@ use alloc::vec::Vec;\n use core::fmt::{self, Debug, Formatter};\n use lazy_static::*;\n \n+const NFT_KALLOC: u64 = 1;\n+const NFT_KFREE: u64 = 5;\n+const NFT_ALLOCATOR_STATE: u64 = 6;\n+\n+#[repr(C)]\n+struct NfTraceRecord {\n+ type_: u64,\n+ a: [u64; 4],\n+}\n+\n+#[no_mangle]\n+#[inline(never)]\n+/// Read an observation record while its stack storage is live.\n+pub extern \"C\" fn nftrace_commit_point(record: *const u64) {\n+ if !record.is_null() {\n+ // The caller keeps this stack record alive until the function returns.\n+ core::hint::black_box(unsafe { core::ptr::read_volatile(record) });\n+ }\n+}\n+\n+fn nodefusion_trace_page(kind: u64, paddr: usize, free_pages: usize, used_pages: usize) {\n+ let record = NfTraceRecord {\n+ type_: kind,\n+ a: [paddr as u64, 1, free_pages as u64, used_pages as u64],\n+ };\n+ nftrace_commit_point(&record as *const NfTraceRecord as *const u64);\n+}\n+\n /// tracker for physical page frame allocation and deallocation\n pub struct FrameTracker {\n /// physical page number\n@@ -48,6 +76,7 @@ pub struct StackFrameAllocator {\n current: usize,\n end: usize,\n recycled: Vec,\n+ allocated: usize,\n }\n \n impl StackFrameAllocator {\n@@ -63,17 +92,22 @@ impl FrameAllocator for StackFrameAllocator {\n current: 0,\n end: 0,\n recycled: Vec::new(),\n+ allocated: 0,\n }\n }\n fn alloc(&mut self) -> Option {\n- if let Some(ppn) = self.recycled.pop() {\n+ let result = if let Some(ppn) = self.recycled.pop() {\n Some(ppn.into())\n } else if self.current == self.end {\n None\n } else {\n self.current += 1;\n Some((self.current - 1).into())\n+ };\n+ if result.is_some() {\n+ self.allocated += 1;\n }\n+ result\n }\n fn dealloc(&mut self, ppn: PhysPageNum) {\n let ppn = ppn.0;\n@@ -83,6 +117,13 @@ impl FrameAllocator for StackFrameAllocator {\n }\n // recycle\n self.recycled.push(ppn);\n+ self.allocated -= 1;\n+ }\n+}\n+\n+impl StackFrameAllocator {\n+ fn page_counts(&self) -> (usize, usize) {\n+ (self.end - self.current + self.recycled.len(), self.allocated)\n }\n }\n \n@@ -102,19 +143,38 @@ pub fn init_frame_allocator() {\n PhysAddr::from(ekernel as usize).ceil(),\n PhysAddr::from(MEMORY_END).floor(),\n );\n+ let (free_pages, used_pages) = FRAME_ALLOCATOR.exclusive_access().page_counts();\n+ let record = NfTraceRecord {\n+ type_: NFT_ALLOCATOR_STATE,\n+ a: [free_pages as u64, used_pages as u64, 0, 0],\n+ };\n+ nftrace_commit_point(&record as *const NfTraceRecord as *const u64);\n }\n \n /// Allocate a physical page frame in FrameTracker style\n+#[inline(never)]\n pub fn frame_alloc() -> Option {\n- FRAME_ALLOCATOR\n- .exclusive_access()\n- .alloc()\n- .map(FrameTracker::new)\n+ let (ppn, free_pages, used_pages) = {\n+ let mut allocator = FRAME_ALLOCATOR.exclusive_access();\n+ let ppn = allocator.alloc();\n+ let (free_pages, used_pages) = allocator.page_counts();\n+ (ppn, free_pages, used_pages)\n+ };\n+ let frame = ppn.map(FrameTracker::new);\n+ let paddr = frame.as_ref().map_or(0, |frame| PhysAddr::from(frame.ppn).0);\n+ nodefusion_trace_page(NFT_KALLOC, paddr, free_pages, used_pages);\n+ frame\n }\n \n /// Deallocate a physical page frame with a given ppn\n+#[inline(never)]\n pub fn frame_dealloc(ppn: PhysPageNum) {\n- FRAME_ALLOCATOR.exclusive_access().dealloc(ppn);\n+ let (free_pages, used_pages) = {\n+ let mut allocator = FRAME_ALLOCATOR.exclusive_access();\n+ allocator.dealloc(ppn);\n+ allocator.page_counts()\n+ };\n+ nodefusion_trace_page(NFT_KFREE, PhysAddr::from(ppn).0, free_pages, used_pages);\n }\n \n #[allow(unused)]\ndiff --git a/os/src/mm/heap_allocator.rs b/os/src/mm/heap_allocator.rs\nindex e5f8b30..e39a7cc 100644\n--- a/os/src/mm/heap_allocator.rs\n+++ b/os/src/mm/heap_allocator.rs\n@@ -1,10 +1,44 @@\n //! The global allocator\n use crate::config::KERNEL_HEAP_SIZE;\n use buddy_system_allocator::LockedHeap;\n+use core::alloc::{GlobalAlloc, Layout};\n+use core::ops::Deref;\n+\n+struct ObservedHeap(LockedHeap);\n+\n+impl Deref for ObservedHeap {\n+ type Target = LockedHeap;\n+\n+ fn deref(&self) -> &Self::Target {\n+ &self.0\n+ }\n+}\n+\n+unsafe impl GlobalAlloc for ObservedHeap {\n+ #[inline(never)]\n+ unsafe fn alloc(&self, layout: Layout) -> *mut u8 {\n+ GlobalAlloc::alloc(&self.0, layout)\n+ }\n+\n+ #[inline(never)]\n+ unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {\n+ GlobalAlloc::dealloc(&self.0, ptr, layout)\n+ }\n+\n+ #[inline(never)]\n+ unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 {\n+ GlobalAlloc::realloc(&self.0, ptr, layout, new_size)\n+ }\n+\n+ #[inline(never)]\n+ unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 {\n+ GlobalAlloc::alloc_zeroed(&self.0, layout)\n+ }\n+}\n \n #[global_allocator]\n /// heap allocator instance\n-static HEAP_ALLOCATOR: LockedHeap = LockedHeap::empty();\n+static HEAP_ALLOCATOR: ObservedHeap = ObservedHeap(LockedHeap::empty());\n \n #[alloc_error_handler]\n /// panic when heap allocation error occurs\ndiff --git a/os/src/mm/memory_set.rs b/os/src/mm/memory_set.rs\nindex 5854e42..221b957 100644\n--- a/os/src/mm/memory_set.rs\n+++ b/os/src/mm/memory_set.rs\n@@ -191,6 +191,12 @@ lazy_static! {\n };\n }\n \n+#[inline(never)]\n+/// Observe an accepted complete-region removal before clearing its mappings.\n+pub fn nodefusion_vm_unmap_region(start_vpn: usize, end_vpn: usize) {\n+ core::hint::black_box((start_vpn, end_vpn));\n+}\n+\n impl MemorySet {\n /// Create a new empty `MemorySet`.\n pub fn new_bare() -> Self {\n@@ -204,6 +210,7 @@ impl MemorySet {\n self.page_table.token()\n }\n \n+ #[inline(never)]\n fn push(&mut self, mut map_area: MapArea) -> Option<()> {\n map_area.map(&mut self.page_table)?;\n self.areas.push(map_area);\n@@ -397,6 +404,7 @@ impl MemorySet {\n && area.vpn_range.get_start() == start\n && area.vpn_range.get_end() == end\n })?;\n+ nodefusion_vm_unmap_region(start.0, end.0);\n let mut area = self.areas.remove(index);\n area.unmap(&mut self.page_table);\n Some(())\ndiff --git a/os/src/mm/page_table.rs b/os/src/mm/page_table.rs\nindex d260c6e..c63dc6a 100644\n--- a/os/src/mm/page_table.rs\n+++ b/os/src/mm/page_table.rs\n@@ -89,6 +89,7 @@ pub struct PageTable {\n \n impl PageTable {\n /// Create a new page table\n+ #[inline(never)]\n pub fn new() -> Self {\n let frame = frame_alloc().unwrap();\n PageTable {\n@@ -154,6 +155,7 @@ impl PageTable {\n /// Constraints: Use a 4 KiB Sv39 mapping with `V` and the requested flags.\n /// This page table owns its intermediate page table frames through `frames`;\n /// ownership of the mapped data frame remains with the caller.\n+ #[inline(never)]\n pub fn map(&mut self, vpn: VirtPageNum, ppn: PhysPageNum, flags: PTEFlags) -> Option<()> {\n let pte = self.find_pte_create(vpn)?;\n if pte.is_valid() {\ndiff --git a/os/src/task/mod.rs b/os/src/task/mod.rs\nindex 5739112..fadf002 100644\n--- a/os/src/task/mod.rs\n+++ b/os/src/task/mod.rs\n@@ -217,6 +217,7 @@ fn mark_current_exited() {\n }\n \n /// Suspend the current 'Running' task and run the next task in task list.\n+#[inline(never)]\n pub fn suspend_current_and_run_next() {\n mark_current_suspended();\n run_next_task();\n", "user_commit": "a0593662ad55d670ba8c27ce1763347cd0dd552f", "user_patch": "", "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": "1a96912593cf39d23f487ba2dd3e8df52c5a9ea87d47cc8eb2c3c5d350e7b918", "patch": "diff --git a/nodefusion/manifests/rcore.toml b/nodefusion/manifests/rcore.toml\nindex 3579114..da4c91d 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@@ -213,7 +208,7 @@ 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+pgtbl = { path = \"memory_set.page_table.root_ppn.__0\", reader = \"ppn\", role = \"address_space_root\" }\n prio = { path = \"inner.priority\", reader = \"usize\", role = \"priority\" }\n \n \n@@ -223,7 +218,7 @@ 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 +472,18 @@ 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 +663,7 @@ 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 +835,7 @@ 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 +900,7 @@ 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 +1558,35 @@ 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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"bytes": 21360, "start": 2150056480, "end": 2150077840 }, "ch4b_sbrk.elf": { "sha256": "c2786aab40c8d27e43d792b9e3cd49fd1803e4f23d95779b8f26c24de3972127", "bytes": 21360, "start": 2150077840, "end": 2150099200 } } } }, "versions": { "rustc": "rustc 1.80.0-nightly (c987ad527 2024-05-01)", "cargo": "cargo 1.80.0-nightly (6087566b3 2024-04-30)", "qemu-system-riscv64": "QEMU emulator version 10.2.2" }, "build_context": { "kernel_commit": "ef2dfc4c23c70a1eb4c6a0b30feb694b2d09a73d", "kernel_patch": "diff --git a/os/src/mm/frame_allocator.rs b/os/src/mm/frame_allocator.rs\nindex 01e62fd..6a3f192 100644\n--- a/os/src/mm/frame_allocator.rs\n+++ b/os/src/mm/frame_allocator.rs\n@@ -8,6 +8,34 @@ use alloc::vec::Vec;\n use core::fmt::{self, Debug, Formatter};\n use lazy_static::*;\n \n+const NFT_KALLOC: u64 = 1;\n+const NFT_KFREE: u64 = 5;\n+const NFT_ALLOCATOR_STATE: u64 = 6;\n+\n+#[repr(C)]\n+struct NfTraceRecord {\n+ type_: u64,\n+ a: [u64; 4],\n+}\n+\n+#[no_mangle]\n+#[inline(never)]\n+/// Read an observation record while its stack storage is live.\n+pub extern \"C\" fn nftrace_commit_point(record: *const u64) {\n+ if !record.is_null() {\n+ // The caller keeps this stack record alive until the function returns.\n+ core::hint::black_box(unsafe { core::ptr::read_volatile(record) });\n+ }\n+}\n+\n+fn nodefusion_trace_page(kind: u64, paddr: usize, free_pages: usize, used_pages: usize) {\n+ let record = NfTraceRecord {\n+ type_: kind,\n+ a: [paddr as u64, 1, free_pages as u64, used_pages as u64],\n+ };\n+ nftrace_commit_point(&record as *const NfTraceRecord as *const u64);\n+}\n+\n /// tracker for physical page frame allocation and deallocation\n pub struct FrameTracker {\n /// physical page number\n@@ -48,6 +76,7 @@ pub struct StackFrameAllocator {\n current: usize,\n end: usize,\n recycled: Vec,\n+ allocated: usize,\n }\n \n impl StackFrameAllocator {\n@@ -63,17 +92,22 @@ impl FrameAllocator for StackFrameAllocator {\n current: 0,\n end: 0,\n recycled: Vec::new(),\n+ allocated: 0,\n }\n }\n fn alloc(&mut self) -> Option {\n- if let Some(ppn) = self.recycled.pop() {\n+ let result = if let Some(ppn) = self.recycled.pop() {\n Some(ppn.into())\n } else if self.current == self.end {\n None\n } else {\n self.current += 1;\n Some((self.current - 1).into())\n+ };\n+ if result.is_some() {\n+ self.allocated += 1;\n }\n+ result\n }\n fn dealloc(&mut self, ppn: PhysPageNum) {\n let ppn = ppn.0;\n@@ -83,6 +117,13 @@ impl FrameAllocator for StackFrameAllocator {\n }\n // recycle\n self.recycled.push(ppn);\n+ self.allocated -= 1;\n+ }\n+}\n+\n+impl StackFrameAllocator {\n+ fn page_counts(&self) -> (usize, usize) {\n+ (self.end - self.current + self.recycled.len(), self.allocated)\n }\n }\n \n@@ -102,19 +143,38 @@ pub fn init_frame_allocator() {\n PhysAddr::from(ekernel as usize).ceil(),\n PhysAddr::from(MEMORY_END).floor(),\n );\n+ let (free_pages, used_pages) = FRAME_ALLOCATOR.exclusive_access().page_counts();\n+ let record = NfTraceRecord {\n+ type_: NFT_ALLOCATOR_STATE,\n+ a: [free_pages as u64, used_pages as u64, 0, 0],\n+ };\n+ nftrace_commit_point(&record as *const NfTraceRecord as *const u64);\n }\n \n /// Allocate a physical page frame in FrameTracker style\n+#[inline(never)]\n pub fn frame_alloc() -> Option {\n- FRAME_ALLOCATOR\n- .exclusive_access()\n- .alloc()\n- .map(FrameTracker::new)\n+ let (ppn, free_pages, used_pages) = {\n+ let mut allocator = FRAME_ALLOCATOR.exclusive_access();\n+ let ppn = allocator.alloc();\n+ let (free_pages, used_pages) = allocator.page_counts();\n+ (ppn, free_pages, used_pages)\n+ };\n+ let frame = ppn.map(FrameTracker::new);\n+ let paddr = frame.as_ref().map_or(0, |frame| PhysAddr::from(frame.ppn).0);\n+ nodefusion_trace_page(NFT_KALLOC, paddr, free_pages, used_pages);\n+ frame\n }\n \n /// Deallocate a physical page frame with a given ppn\n+#[inline(never)]\n pub fn frame_dealloc(ppn: PhysPageNum) {\n- FRAME_ALLOCATOR.exclusive_access().dealloc(ppn);\n+ let (free_pages, used_pages) = {\n+ let mut allocator = FRAME_ALLOCATOR.exclusive_access();\n+ allocator.dealloc(ppn);\n+ allocator.page_counts()\n+ };\n+ nodefusion_trace_page(NFT_KFREE, PhysAddr::from(ppn).0, free_pages, used_pages);\n }\n \n #[allow(unused)]\ndiff --git a/os/src/mm/heap_allocator.rs b/os/src/mm/heap_allocator.rs\nindex e5f8b30..e39a7cc 100644\n--- a/os/src/mm/heap_allocator.rs\n+++ b/os/src/mm/heap_allocator.rs\n@@ -1,10 +1,44 @@\n //! The global allocator\n use crate::config::KERNEL_HEAP_SIZE;\n use buddy_system_allocator::LockedHeap;\n+use core::alloc::{GlobalAlloc, Layout};\n+use core::ops::Deref;\n+\n+struct ObservedHeap(LockedHeap);\n+\n+impl Deref for ObservedHeap {\n+ type Target = LockedHeap;\n+\n+ fn deref(&self) -> &Self::Target {\n+ &self.0\n+ }\n+}\n+\n+unsafe impl GlobalAlloc for ObservedHeap {\n+ #[inline(never)]\n+ unsafe fn alloc(&self, layout: Layout) -> *mut u8 {\n+ GlobalAlloc::alloc(&self.0, layout)\n+ }\n+\n+ #[inline(never)]\n+ unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {\n+ GlobalAlloc::dealloc(&self.0, ptr, layout)\n+ }\n+\n+ #[inline(never)]\n+ unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 {\n+ GlobalAlloc::realloc(&self.0, ptr, layout, new_size)\n+ }\n+\n+ #[inline(never)]\n+ unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 {\n+ GlobalAlloc::alloc_zeroed(&self.0, layout)\n+ }\n+}\n \n #[global_allocator]\n /// heap allocator instance\n-static HEAP_ALLOCATOR: LockedHeap = LockedHeap::empty();\n+static HEAP_ALLOCATOR: ObservedHeap = ObservedHeap(LockedHeap::empty());\n \n #[alloc_error_handler]\n /// panic when heap allocation error occurs\ndiff --git a/os/src/mm/memory_set.rs b/os/src/mm/memory_set.rs\nindex 5854e42..221b957 100644\n--- a/os/src/mm/memory_set.rs\n+++ b/os/src/mm/memory_set.rs\n@@ -191,6 +191,12 @@ lazy_static! {\n };\n }\n \n+#[inline(never)]\n+/// Observe an accepted complete-region removal before clearing its mappings.\n+pub fn nodefusion_vm_unmap_region(start_vpn: usize, end_vpn: usize) {\n+ core::hint::black_box((start_vpn, end_vpn));\n+}\n+\n impl MemorySet {\n /// Create a new empty `MemorySet`.\n pub fn new_bare() -> Self {\n@@ -204,6 +210,7 @@ impl MemorySet {\n self.page_table.token()\n }\n \n+ #[inline(never)]\n fn push(&mut self, mut map_area: MapArea) -> Option<()> {\n map_area.map(&mut self.page_table)?;\n self.areas.push(map_area);\n@@ -397,6 +404,7 @@ impl MemorySet {\n && area.vpn_range.get_start() == start\n && area.vpn_range.get_end() == end\n })?;\n+ nodefusion_vm_unmap_region(start.0, end.0);\n let mut area = self.areas.remove(index);\n area.unmap(&mut self.page_table);\n Some(())\ndiff --git a/os/src/mm/page_table.rs b/os/src/mm/page_table.rs\nindex d260c6e..c63dc6a 100644\n--- a/os/src/mm/page_table.rs\n+++ b/os/src/mm/page_table.rs\n@@ -89,6 +89,7 @@ pub struct PageTable {\n \n impl PageTable {\n /// Create a new page table\n+ #[inline(never)]\n pub fn new() -> Self {\n let frame = frame_alloc().unwrap();\n PageTable {\n@@ -154,6 +155,7 @@ impl PageTable {\n /// Constraints: Use a 4 KiB Sv39 mapping with `V` and the requested flags.\n /// This page table owns its intermediate page table frames through `frames`;\n /// ownership of the mapped data frame remains with the caller.\n+ #[inline(never)]\n pub fn map(&mut self, vpn: VirtPageNum, ppn: PhysPageNum, flags: PTEFlags) -> Option<()> {\n let pte = self.find_pte_create(vpn)?;\n if pte.is_valid() 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"732e30d19129e0a1f15e33a2c1f96d940abaa1a26829b8f0d7bc44bf873cdc87", "nodefusion/tools/crosscheck_procinfo.py": "c3d6dd588b28d9252ddb712dea0ab8d3212dffed7f9256b9b936860fa0dfb8a9", "nodefusion/tools/crosscheck_procs.py": "b497c8fd050c0d6d1e4154eda00c1eef05502d3826546b1165b8a740c6fee562", "nodefusion/tools/crosscheck_resources.py": "98b04ac869e3c9e38020728473d480b8ed0b15385bc1d530e466919807ad1ac3", "nodefusion/tools/crosscheck_watchsel.py": "52142d49e919f2f040371b404cabdef0d0edbbf977abdcb1af5063b910d0aad8", "nodefusion/tools/survey_chapters.py": "6952dbdb8036916acd17bd5f642ea0b62aa10cbbec2bb4227e58f5132683589b", "scripts/benchmark_trace.py": "0faf86ba735bc31a20ee8e7ae3d3aad8aef78f0f43cdd33e831658f4e2a71494", "scripts/consolidate_artifacts.py": "31700c7f0a1f21fef653e061115b0091aa1a4ce539b9baa9cb48ad914889dadd", "scripts/finalize_artifacts.py": "a10224f43e0554eeb347a201dfd29781fbe0a39b979f890cccbec65e76cea9eb", "scripts/regenerate_artifact.py": "aed10d1eedc5689b6fd68e84a9bb8ae0c98f7bb8456fd8bd280e8bae470b8e9a" }, "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": "1a96912593cf39d23f487ba2dd3e8df52c5a9ea87d47cc8eb2c3c5d350e7b918", "patch": "diff --git a/nodefusion/manifests/rcore.toml b/nodefusion/manifests/rcore.toml\nindex 3579114..da4c91d 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@@ -213,7 +208,7 @@ 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+pgtbl = { path = \"memory_set.page_table.root_ppn.__0\", reader = \"ppn\", role = \"address_space_root\" }\n prio = { path = \"inner.priority\", reader = \"usize\", role = \"priority\" }\n \n \n@@ -223,7 +218,7 @@ 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 +472,18 @@ 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 +663,7 @@ 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 +835,7 @@ 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 +900,7 @@ 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 +1558,35 @@ 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" }, { "path": "nodefusion/host/bundle.py", "sha256": "f6117f48b073e117dc0ffa6cdf1af4984d173b3a8f16808730e3746b51c2ad33", "patch": "diff --git a/nodefusion/host/bundle.py b/nodefusion/host/bundle.py\nindex a31f11f..4a3967a 100644\n--- a/nodefusion/host/bundle.py\n+++ b/nodefusion/host/bundle.py\n@@ -15,6 +15,7 @@ from .analyze import Analysis\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" }, { "path": "nodefusion/tests/test_bundle_shape.py", "sha256": "34d227f2726d1820160288b225243b51fe3583839ff52ee245a814eb1c27f81d", "patch": "diff --git a/nodefusion/tests/test_bundle_shape.py b/nodefusion/tests/test_bundle_shape.py\nindex 40bd9fe..025791a 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@@ -144,7 +145,8 @@ 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 +158,9 @@ 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 +179,79 @@ 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\", 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