The Clang Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.

[zlychanged]

Type: LanguageService

Describe the bug

• OS and Version: Ubuntu 18.04.6 LTS
• VS Code Version: 1.98.2
• Clangd Version: 0.2.0
• Other extensions you installed (and if the issue persists after disabling them): Cmake Tools (no change if stopped)
• Does this issue involve using SSH remote to run the extension on a remote machine?: yes
• A clear and concise description of what the bug is, including information about the workspace (i.e. is the workspace a single project or multiple projects, size of the project, etc).

PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var LLVM_SYMBOLIZER_PATH to point to it):
0 clangd 0x000000000055715b
1 clangd 0x0000000000554fbe
2 clangd 0x0000000000557af6
3 libpthread.so.0 0x00007f1236d19980
4 clangd 0x00000000016e51ba
5 clangd 0x00000000016e2d2c
6 clangd 0x00000000016dcf39
7 clangd 0x00000000016d1bef
8 clangd 0x00000000016e80aa
9 clangd 0x00000000016cc209
10 clangd 0x00000000016cf545
11 clangd 0x00000000016cad1e
12 clangd 0x00000000015f573f
13 clangd 0x000000000179856c
14 clangd 0x000000000178fa0b
15 clangd 0x000000000178e460
16 clangd 0x000000000190f7c1
17 libpthread.so.0 0x00007f1236d0e6db
18 libc.so.6 0x00007f123628d61f clone + 63
Signalled during AST worker action: InlayHints
Filename: camxchinodeeisv2.cpp
Directory: /home/builder/workspace/c9/qcs8625/LE.PRODUCT.9.0.r1/apps_proc/src/vendor/qcom/proprietary/camx/src/swl/gyro_features/eisv2
Command Line: /usr/bin/clang -resource-dir=/home/builder/workspace/Tools/clangd_19.1.2/lib/clang/19 -- /home/builder/workspace/c9/qcs8625/LE.PRODUCT.9.0.r1/apps_proc/src/vendor/qcom/proprietary/camx/src/swl/gyro_features/eisv2/camxchinodeeisv2.cpp
Version: 1
[Error - 10:16:27] The Clang Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.
[Error - 10:16:27] Request textDocument/inlayHint failed.
[object Object]
[Error - 10:16:27] Request textDocument/semanticTokens/full failed.
[object Object]
[Error - 10:16:27] Request textDocument/foldingRange failed.
[object Object]
[Error - 10:16:27] Server process exited with signal SIGSEGV.

[llvmbot]

@llvm/issue-subscribers-clangd

Author: Lincoln Zhang (zlychanged)

**Type: LanguageService**

Describe the bug

• OS and Version: Ubuntu 18.04.6 LTS
• VS Code Version: 1.98.2
• Clangd Version: 0.2.0
• Other extensions you installed (and if the issue persists after disabling them): Cmake Tools (no change if stopped)
• Does this issue involve using SSH remote to run the extension on a remote machine?: yes
• A clear and concise description of what the bug is, including information about the workspace (i.e. is the workspace a single project or multiple projects, size of the project, etc).

PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var LLVM_SYMBOLIZER_PATH to point to it):
0 clangd 0x000000000055715b
1 clangd 0x0000000000554fbe
2 clangd 0x0000000000557af6
3 libpthread.so.0 0x00007f1236d19980
4 clangd 0x00000000016e51ba
5 clangd 0x00000000016e2d2c
6 clangd 0x00000000016dcf39
7 clangd 0x00000000016d1bef
8 clangd 0x00000000016e80aa
9 clangd 0x00000000016cc209
10 clangd 0x00000000016cf545
11 clangd 0x00000000016cad1e
12 clangd 0x00000000015f573f
13 clangd 0x000000000179856c
14 clangd 0x000000000178fa0b
15 clangd 0x000000000178e460
16 clangd 0x000000000190f7c1
17 libpthread.so.0 0x00007f1236d0e6db
18 libc.so.6 0x00007f123628d61f clone + 63
Signalled during AST worker action: InlayHints
Filename: camxchinodeeisv2.cpp
Directory: /home/builder/workspace/c9/qcs8625/LE.PRODUCT.9.0.r1/apps_proc/src/vendor/qcom/proprietary/camx/src/swl/gyro_features/eisv2
Command Line: /usr/bin/clang -resource-dir=/home/builder/workspace/Tools/clangd_19.1.2/lib/clang/19 -- /home/builder/workspace/c9/qcs8625/LE.PRODUCT.9.0.r1/apps_proc/src/vendor/qcom/proprietary/camx/src/swl/gyro_features/eisv2/camxchinodeeisv2.cpp
Version: 1
[Error - 10:16:27] The Clang Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.
[Error - 10:16:27] Request textDocument/inlayHint failed.
[object Object]
[Error - 10:16:27] Request textDocument/semanticTokens/full failed.
[object Object]
[Error - 10:16:27] Request textDocument/foldingRange failed.
[object Object]
[Error - 10:16:27] Server process exited with signal SIGSEGV.

[zlychanged]

clangd --version
clangd version 19.1.2 (https://github.com/llvm/llvm-project 7ba7d8e)
Features: linux+grpc
Platform: x86_64-unknown-linux-gnu

[EugeneZelenko]

Could you please try 20 or main branch? Only most recent release is maintained.

Could you please provide reproducer?

[zlychanged]

Reproduction method: It occurs when restarting the Language Server normally. Currently, it seems that the clangd Language Server keeps crashing.

I'll try using version 20 on the main branch here.

[JVApen]

Seems like the action is linked to inlay hints. This is a feature you can disable, see https://clangd.llvm.org/config#inlayhints That way you can keep using clangd for all other features.

[zlychanged]

It seems that turning off inlay-hints works. Why is that? Is it due to the version? Will it be fixed in the future?