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IntelliSense crash: handle_update_intellisense #14309
Description
Environment
- OS and Version: Win11 25H2 26200.8037
- VS Code Version: 1.112
- C/C++ Extension Version: 1.30.5 and 1.31.2 (pre-release)
- If using SSH remote, specify OS of remote machine: No
Bug Summary and Steps to Reproduce
Bug Summary:
The intellisense crashed with the message of handle_update_intellisense
Configuration and Logs
1.
{
"configurations": [
{
"name": "Win32",
"includePath": [
"${workspaceFolder}/**"
],
"defines": [
"_DEBUG",
"SPDLOG_USE_STD_FORMAT",
"WIN32_LEAN_AND_MEAN"
// "UNICODE",
// "_UNICODE"
],
"compilerPath": "C:\\mingw64\\bin\\gcc.exe",
"cStandard": "c17",
"cppStandard": "c++20"
}
],
"version": 4
}
2.
-------- Diagnostics - 2026/3/21 19:54:09
Version: 1.30.5
Current Configuration:
{
"name": "Win32",
"includePath": [
"c:/Users/<myusername>/Desktop/project/**"
],
"defines": [
"_DEBUG",
"SPDLOG_USE_STD_FORMAT",
"WIN32_LEAN_AND_MEAN"
],
"compilerPath": "C:\\mingw64\\bin\\gcc.exe",
"cStandard": "c17",
"cppStandard": "c++20",
"compilerPathIsExplicit": true,
"cStandardIsExplicit": true,
"cppStandardIsExplicit": true,
"intelliSenseModeIsExplicit": true,
"recursiveIncludesReduceIsExplicit": false,
"recursiveIncludesPriorityIsExplicit": false,
"recursiveIncludesOrderIsExplicit": false,
"compilerPathInCppPropertiesJson": "C:\\mingw64\\bin\\gcc.exe",
"intelliSenseMode": "windows-gcc-x64",
"mergeConfigurations": false,
"recursiveIncludes": {},
"browse": {
"limitSymbolsToIncludedHeaders": true
}
}
Modified Settings:
{
"C_Cpp.default.intelliSenseMode": "windows-gcc-x64"
}
Additional Tracked Settings:
{
"editorTabSize": 4,
"editorInsertSpaces": true,
"editorAutoClosingBrackets": "languageDefined",
"filesEncoding": "utf8",
"filesAssociations": {},
"filesExclude": {
"**/.git": true,
"**/.svn": true,
"**/.hg": true,
"**/.DS_Store": true,
"**/Thumbs.db": true
},
"filesAutoSaveAfterDelay": true,
"editorInlayHintsEnabled": true,
"editorParameterHintsEnabled": true,
"searchExclude": {
"**/node_modules": true,
"**/bower_components": true,
"**/*.code-search": true
},
"workbenchSettingsEditor": "ui"
}
cpptools version (native): 1.30.5.0
Current database path: C:\USERS\<myusername>\APPDATA\LOCAL\MICROSOFT\VSCODE-CPPTOOLS\2C4CA56B3A133CAEB158BBF87C3A7194\.BROWSE.VC.DB
No active translation units.
------- Workspace parsing diagnostics -------
Number of files discovered (not excluded): 4733Other Extensions
No response
Additional context
I have attached cpptools-srv. firstly not open the file, then attach, then switch to the file. And the debug ends.
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imba-tjd commentedon Mar 21, 2026
OK. This code can trigger my crash:
I find this issue is caused by https://github.com/brechtsanders/winlibs_mingw/releases/download/16.0.1-snapshot20260222posix-13.0.0-ucrt-r1/winlibs-x86_64-posix-seh-gcc-16.0.1-snapshot20260222-mingw-w64ucrt-13.0.0-r1.7z
switching to an old 15.2 (built by another people) works.
sean-mcmanus commentedon Mar 24, 2026
imba-tjd Fixed with https://github.com/microsoft/vscode-cpptools/releases/tag/v1.31.3. But let us know if you see any other new issues when using GCC 16.