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C# crash

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評価

難易度
4/5
見積もり時間
3〜5日
初心者へのやさしさ
25/100
issue の種類
バグ
明瞭さ
説明が足りない
活発さ
活発
技術スタック
csharp, typescript, vscode
領域
developer-experience, tooling

調査の方向性

Start by reproducing the crash in the reported BlazorTest workspace and review the C# log around the language server connection closing and SIGKILL. The issue is complete when the cause of the server termination is identified, the crash no longer occurs under the same conditions, and a regression test or reproduction is documented if the repository supports one.

索引モデルが issue の本文から書いたものです。

説明

Bug C#DK Needs More Info Reliability Remote Extensions Roslyn LSP

Type: Bug

Issue Description

Steps to Reproduce

Expected Behavior

Actual Behavior

Extension version: 2.160.4
VS Code version: Code 1.139.0 (2242ebbb54efeeb0129e08e919e7e8d43033cd83, 2026-09-22T15:13:34Z)
OS version: Linux x64 6.12.107+deb13-amd64
Modes:
Remote OS version: Linux x64 6.12.107+deb13-cloud-amd64

Logs
C# log
2026-09-24 03:32:08.698 [info] Locating .NET runtime version 10.0.5
2026-09-24 03:32:09.005 [info] Dotnet path: /usr/share/dotnet/dotnet
2026-09-24 03:32:09.005 [info] Activating C# + C# Dev Kit...
2026-09-24 03:32:09.629 [info] info: Program[0]
2026-09-24 03:32:09.629 [info]       Server information:
2026-09-24 03:32:09.630 [info] info: Program[0]
2026-09-24 03:32:09.630 [info]         Assembly informational version: 5.12.0-1.26452.1+e42c0e42e89e41522593d0816707e71781ecbee2
2026-09-24 03:32:09.630 [info] info: Program[0]
2026-09-24 03:32:09.630 [info]         Executable path: /home/j141006/.vscode-server/extensions/ms-dotnettools.csharp-2.160.4-linux-x64/.roslyn/Microsoft.CodeAnalysis.LanguageServer
2026-09-24 03:32:09.630 [info] info: Program[0]
2026-09-24 03:32:09.630 [info]         Process ID: 142736
2026-09-24 03:32:10.368 [info] info: Program[0]
2026-09-24 03:32:10.368 [info]       Monitoring client process 142444 for exit
2026-09-24 03:32:10.368 [info] info: Program[0]
2026-09-24 03:32:10.368 [info]       Language server initialized
2026-09-24 03:32:12.973 [info] [initialized] [Microsoft.CodeAnalysis.LanguageServer.FileBasedPrograms.FileBasedProgramsEntryPointDiscovery] Finished discovery in '/home/j141006/workspace/BlazorTest' in 20 milliseconds
2026-09-24 03:32:13.176 [info] [Razor.LanguageClient.Cohost.RazorCohostDynamicRegistrationService] Requesting 27 Razor cohost registrations.
2026-09-24 03:32:13.214 [info] [initialized] [Razor]  Razor extension startup finished.
2026-09-24 03:32:30.074 [info] [WorkspaceProjectFactoryService] Project /home/j141006/workspace/BlazorTest/Domain/BlazorTest.Domain.csproj loaded by C# Dev Kit
2026-09-24 03:32:30.138 [info] [WorkspaceProjectFactoryService] Project /home/j141006/workspace/BlazorTest/Application/BlazorTest.Application.csproj loaded by C# Dev Kit
2026-09-24 03:32:30.160 [info] [WorkspaceProjectFactoryService] Project /home/j141006/workspace/BlazorTest/BlazorTest.csproj loaded by C# Dev Kit
2026-09-24 03:32:30.178 [info] [WorkspaceProjectFactoryService] Project /home/j141006/workspace/BlazorTest/Infrastructure/BlazorTest.Infrastructure.csproj loaded by C# Dev Kit
2026-09-24 03:38:05.552 [info] Connection to server got closed. Server will restart.
2026-09-24 03:38:05.635 [error] Server process exited with signal SIGKILL.
2026-09-24 03:38:05.780 [info] info: Program[0]
2026-09-24 03:38:05.780 [info]       Server information:
2026-09-24 03:38:05.780 [info] info: Program[0]
2026-09-24 03:38:05.780 [info]         Assembly informational version: 5.12.0-1.26452.1+e42c0e42e89e41522593d0816707e71781ecbee2
2026-09-24 03:38:05.781 [info] info: Program[0]
2026-09-24 03:38:05.781 [info]         Executable path: /home/j141006/.vscode-server/extensions/ms-dotnettools.csharp-2.160.4-linux-x64/.roslyn/Microsoft.CodeAnalysis.LanguageServer
2026-09-24 03:38:05.781 [info] info: Program[0]
2026-09-24 03:38:05.781 [info]         Process ID: 144499
2026-09-24 03:38:06.164 [info] info: Program[0]
2026-09-24 03:38:06.164 [info]       Monitoring client process 142444 for exit
2026-09-24 03:38:06.164 [info] info: Program[0]
2026-09-24 03:38:06.164 [info]       Language server initialized
2026-09-24 03:38:07.264 [info] [initialized] [Microsoft.CodeAnalysis.LanguageServer.FileBasedPrograms.FileBasedProgramsEntryPointDiscovery] Finished discovery in '/home/j141006/workspace/BlazorTest' in 9 milliseconds
2026-09-24 03:38:07.631 [info] [Razor.LanguageClient.Cohost.RazorCohostDynamicRegistrationService] Requesting 27 Razor cohost registrations.
2026-09-24 03:38:07.682 [info] [initialized] [Razor]  Razor extension startup finished.
C# LSP Trace Logs log

Environment Information

VSCode version: 1.139.0
C# Extension: 2.160.4
Using OmniSharp: false

Dotnet Information .NET SDK: Version: 10.0.401 Commit: e34a38d2ae Workload version: 10.0.401 MSBuild version: 18.9.11+e34a38d2a

Runtime Environment:
OS Name: debian
OS Version: 13
OS Platform: Linux
RID: linux-x64
Base Path: /usr/share/dotnet/sdk/10.0.401/

.NET workloads installed:
There are no installed workloads to display.
Configured to use workload sets when installing new manifests.

Host:
Version: 10.0.12
Architecture: x64
Commit: 95017c711e

.NET SDKs installed:
10.0.401 [/usr/share/dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 10.0.12 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 10.0.12 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
None

Environment variables:
DOTNET_CLI_UI_LANGUAGE [en-US]

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

Visual Studio Code Extensions
Extension Author Version Folder Name
claude-code Anthropic 2.1.280 anthropic.claude-code-2.1.280-linux-x64
csdevkit ms-dotnettools 3.40.204 ms-dotnettools.csdevkit-3.40.204-linux-x64
csharp ms-dotnettools 2.160.4 ms-dotnettools.csharp-2.160.4-linux-x64
vscode-dotnet-runtime ms-dotnettools 3.2.0 ms-dotnettools.vscode-dotnet-runtime-3.2.0
C# Settings
Setting Value
preferCSharpExtension false
compilerDiagnosticScope openFiles
analyzerDiagnosticScope openFiles
enableXamlTools true
useServerGC true
System Info
Item Value
CPUs Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (8 x 2535)
GPU Status 2d_canvas: enabled
GPU0: VENDOR= 0x8086 [Google Inc. (Intel)], DEVICE=0x0412 [ANGLE (Intel, Mesa Intel(R) HD Graphics 4600 (HSW GT2), OpenGL ES 3.2 Mesa 25.0.7-2+deb13u1)], DRIVER_VENDOR=Mesa, DRIVER_VERSION=25.0.7 ACTIVE
Machine model name:
Machine model version:
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
trees_in_viz: disabled_off
video_decode: enabled
video_encode: disabled_software
vulkan: disabled_off
webgl: enabled
webgpu: enabled
webgpu_on_vk_via_gl_interop: disabled_off
webnn: disabled_off
Load (avg) 0, 0, 0
Memory (System) 7.06GB (3.03GB free)
Process Argv --crash-reporter-id d6d93926-2781-4425-9b99-67afabd03980
Screen Reader no
VM 0%
DESKTOP_SESSION plasma
XDG_CURRENT_DESKTOP KDE
XDG_SESSION_DESKTOP KDE
XDG_SESSION_TYPE wayland
Item Value
Remote SSH: gcp-blazor
OS Linux x64 6.12.107+deb13-cloud-amd64
CPUs AMD EPYC 7B12 (2 x 0)
Memory (System) 7.76GB (5.54GB free)
VM 0%
A/B Experiments 
vsliv368:30146709
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
envsactivate1:31551504
gh487529:31544284
cloudbuttont:31379625
3efgi100_wstrepl:31403338
ddidt:31399633
ec5jj548:31422691
cp_cls_t_966_ss:31526232
4je02754:31466945
8hhj4413:31478653
cp_cls_c_1081:31454833
conptydll_true:31498968
e9c30283:31461165
46204921:31447328
ei9d7968:31496641
chat:31457767
8hig5102:31480529
89g7j272:31518289
i2gc6536:31499202
52612955:31516516
ddid_t:31478206
hmra_i5g22:31518061
7df3h592:31512476
cp_cls_t_1082:31535311
logging_enabled_new:31498466
j0d79568:31499440
jb_cp_cls_t_632:31543129
748c7209:31512887
32d76977:31512328
ha629193:31508444
jh5f2457_c:31540921
jbcp_cls_pctr_t:31531130
cp_intellij_t_nes:31548657
ahp-both-windows:31556933
ihg5j128:31534457
9gg7f176:31542112
sandbox-ui-on-2:31543161
nes-ex-cf-euporie-03:31542868
enable_editor_pane_layout:31569726
allow-none:31555437
36h42362:31564511
c7c27ce7:31554789
1h923230:31564177
treatment-23-1:31555779
unuse_dynamic_mcp:31555281
0d8dfbc3:31570291
maidictation:31565333
0c1h4866:31566224
session-mark-done:31558131
5b8j3302:31564601
autotiers:31584978
mangle-name-control:31572633
signed-out-control:31584138
80db41fc-e686-49f5-b9db-830fbb843f14:31589249
intellij_nes_preview_t:31580086
multiv2:31574985
2bfb8b39:31585911
outline:31581109
links-control:31587703
aw-autom-on:31583758
revealsession_treatment_7ed7e840:31582194
usage_tips_endabled_0911:31587631
7g328426_fixed:31584544
codex-agent-host-stable-editor:31589513
66c8a39e-e7a5-4b4c-a3c0-41b161c795c4:31586113
sessioninlinediffenabled_disabled:31587634
b169b0b1-b17e-475c-9032-91b9b24dde97:31589214
ca19f5eb-b04f-4f52-8e6b-9f6927d4e0dc:31589210
ab3a55c7-2c00-45e3-ba2a-24f46daa0f2a:31589211
c421e94a-2965-4255-b6e3-fc416a37e073:31589304
permission_prompt_control:1332567
ccr_pr_nudge_control:1319470
vsc_wsm_t:1340632
g03gg798:1417072
1g5a5742:1379227
3aced641:1389836
sem_714gi995:1401462
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