Language Server crashes after opening any XML file

[HerrCraziDev]

Environment

• OS and Version: Windows 11 Pro (latest)
• VS Code Version: 1.85.1 (latest)
• C/C++ Extension Version: 1.18.5, 1.19.1

Bug Summary and Steps to Reproduce

This is an exact duplicate of #11453, which was closed when the OP had solved the issue by reinstalling VSCode.

Reinstalling VSCode and the C/Cpp extensions has no effect.

Configuration and Logs

Occurs on the most basic projects. No specific configuration, a single `main.c` hello world and a single `sample.xml`.

Other Extensions

Disabling extensions has no effect - issue persists

AbdAlMoniem-AlHifnawy.c-call-hierarchy abusaidm.html-snippets angelo-breuer.clock anseki.vscode-color arcensoth.language-mcfunction Arm.cmsis-csolution Arm.device-manager Arm.embedded-debug Arm.environment-manager Arm.keil-studio-pack Arm.remote-build Arm.virtual-hardware azemoh.one-monokai ban.spellright bedrankara.hoverconverter blacktop.vscode-calc cortex-debug.svd-viewer dan-c-underwood.arm DotJoshJohnson.xml drkryz.drkryz-theme eamodio.gitlens ecmel.vscode-html-css fes300.split-dig firefox-devtools.vscode-firefox-debug golang.go GrapeCity.gc-excelviewer gurumukhi.selected-lines-count hashicorp.terraform helsmy.autohotkey-debug icrawl.discord-vscode James-Yu.latex-workshop jebbs.plantuml jeff-hykin.better-cpp-syntax JohnChabot.kos-vscode mads-hartmann.bash-ide-vscode maxerbox.vscode-discord mgt19937.typst-preview MinecraftCommands.syntax-mcfunction monokai.theme-monokai-pro-vscode MS-CEINTL.vscode-language-pack-fr ms-dotnettools.csharp ms-dotnettools.vscode-dotnet-runtime ms-python.python ms-python.vscode-pylance ms-toolsai.jupyter ms-toolsai.jupyter-keymap ms-toolsai.jupyter-renderers ms-vscode-remote.remote-ssh ms-vscode-remote.remote-ssh-edit ms-vscode-remote.remote-wsl ms-vscode.atom-keybindings ms-vscode.cmake-tools ms-vscode.cpptools ms-vscode.cpptools-extension-pack ms-vscode.cpptools-themes ms-vscode.hexeditor ms-vscode.vscode-embedded-tools ms-vsliveshare.vsliveshare notblank00.hexeditor nvarner.typst-lsp octref.vetur qub.qub-xml-vscode redhat.java redhat.vscode-commons redhat.vscode-xml redhat.vscode-yaml rioj7.FileGroup rioj7.html-related-links rogalmic.vscode-xml-complete ryuta46.multi-command shakram02.bash-beautify shd101wyy.markdown-preview-enhanced SPGoding.datapack-language-server stkb.rewrap streetsidesoftware.code-spell-checker streetsidesoftware.code-spell-checker-french stuart.unique-window-colors tao-cumplido.inspector-hex thqby.vscode-autohotkey2-lsp timreilly.typewriter-sounds tomoki1207.pdf twxs.cmake victoriadrake.kabukicho VisualStudioExptTeam.vscodeintellicode vsciot-vscode.vscode-arduino vscjava.vscode-java-debug vscjava.vscode-java-dependency vscjava.vscode-java-pack vscjava.vscode-java-test vscjava.vscode-maven vscode-icons-team.vscode-icons xabikos.JavaScriptSnippets xiaoyongdong.srecord xuedao.super-themes Zignd.html-css-class-completion

Additional context

No response

[browntarik]

Could you give more context, is your extension crashing every time you open a new xml file? Could you provide the files that are causing this issue? This will help to reproduce what you are experiencing.

In the meantime, I would consider reinstalling the extension and VS Code to see if that works as well.

[HerrCraziDev]

As I mentionned in the issue, I have tried reinstalling both VSCode and the extension.

The language server crashes every time I open an XML file and then switch back to a C or C++ file. It does not crash while I am editing the XML, but as soon as I switch to a C or C++ file, either a tab or opening a new file from the file tree view.

The contents of the files does not matters, even the simplest files produce the issue. I have created an example folder containing a main.c C file and an example.xml XML file, nothing else. That's sufficient to trigger the issue on my end. I will attach the content of both files at the end of this message, although most likely irrelevant to the issue.

The behavior and symptoms are identical to those described in #11453, with the only difference that reinstalling VSCode did not solve the issue in my case.

main.c

#include <stdio.h>

int main( int argc, char* argv[] ) {

    printf( "Ia'orana te fenua !\n" );

    return 0;
}

example.xml

<example>
    <content foo="bar">
        Hello world !
    </content>
</example>

[browntarik]

Have you been able to reproduce this issue while disabling all other extensions. I am not able to reproduce it but my guess is this may be due to another extension. Our extension does not interact with xml files at all and should not crash the C++ extension.

Could you enable "C_Cpp.loggingLevel": "Debug" and provide the output of the C/C++ output channel? If you could provide crash stacks using the debugger as well that would help: https://github.com/microsoft/vscode-cpptools/wiki/Attaching-debugger-to-cpptools-or-cpptools%E2%80%90srv

[github-actions[bot]]

This issue has been closed because it needs more information and has not had recent activity.