microsoft / microsoft/vscode-cpptools
Language server crash
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Description
Type: Bug
Crash call stack:
A C/C++ extension process has crashed. The crashing process name, date/time, signal, and call stack are below -- it would be helpful to include that in a bug report at https://github.com/Microsoft/vscode-cpptools/issues.
cpptools
6/10/2025, 1:24:33 PM
SIGBUS
…
…
…
sqlite3_step+1440
…
code_store::results_statement<code_store::code_items_set_t, code_store::schema::code_items::read_statement_t, code_store::code_items_set>::count_rows(long&)+142
CExtResults<CExtCodeItemResults, CCodeItem, code_store::code_items_set, ICodeItemResults>::CountRows()+85
documentation_comment::can_generate_doxygen_comment(std::shared_ptr<msvc::file_buffer_snap_t> const&, std::string const&, bool, bool, bool, msvc::strong_typedef<msvc::line0_traits>, bool&, msvc::text_address0_t&, msvc::text_address0_t&, msvc::strong_typedef<msvc::line0_traits>&)+781
cpptools_context::cpptools_codeActionsRequest(GetCodeActionsRequestParams&&, unsigned int)+2966
…
msvc::thread_manager_t::queue_item<msvc::deque_thread<std::function<void ()>>::defer(std::function<void ()>&&)::{lambda()#1}>::operator()()+297
msvc::thread_manager_t::do_work(unsigned int)+431
Extension version: 1.25.3
VS Code version: Code 1.100.2 (848b80aeb52026648a8ff9f7c45a9b0a80641e2e, 2025-05-14T21:47:40.416Z)
OS version: Windows_NT x64 10.0.26100
Modes:
Remote OS version: Linux x64 4.18.0-553.51.1.el8_10.x86_64
System Info
| Item | Value |
|---|---|
| CPUs | 12th Gen Intel(R) Core(TM) i7-12700F (20 x 2112) |
| GPU Status | 2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off |
| Load (avg) | undefined |
| Memory (System) | 31.76GB (18.26GB free) |
| Process Argv | --crash-reporter-id b1511c9a-31e6-4c01-b6d6-c4c8a02f1dc9 |
| Screen Reader | no |
| VM | 0% |
| Item | Value |
|---|---|
| Remote | SSH: login |
| OS | Linux x64 4.18.0-553.51.1.el8_10.x86_64 |
| CPUs | Intel(R) Xeon(R) Platinum 8351N CPU @ 2.40GHz (72 x 3282) |
| Memory (System) | 502.72GB (451.27GB free) |
| VM | 0% |
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Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start from the reported cpptools crash stack, especially sqlite3_step, code_store::results_statement, and documentation_comment::can_generate_doxygen_comment. Reproduce the SIGBUS under the listed remote Linux and VS Code environment, then verify that code-actions processing no longer crashes; the report does not name a source file or regression test.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp, vscode
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100