Microsoft.CodeAnalysis.LanguageServer server crashed 5 times in the last 3 minutes

[mikekistler]

Type: Bug

The C# extension (I think) crashes with this message when I open a Polyglot notebook inside a devcontainer for .NET 9:

The Microsoft.CodeAnalysis.LanguageServer server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.

I did look at #5964 but at end of this is a request to open new issues if the problem recurs, so I'm doing that.

I've captured the full log and will post it once the issue is open.

Extension version: 2.45.25
VS Code version: Code 1.94.0 (d78a74bcdfad14d5d3b1b782f87255d802b57511, 2024-10-02T13:08:12.626Z)
OS version: Darwin arm64 24.0.0
Modes:
Remote OS version: Linux arm64 6.10.4-linuxkit

System Info

Item	Value
CPUs	Apple M1 Pro (10 x 2400)
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 webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	2, 2, 6
Memory (System)	32.00GB (1.31GB free)
Process Argv	. --crash-reporter-id 419d896f-7e85-4c21-8845-5a77abdaec9d
Screen Reader	no
VM	0%

Item	Value
Remote	Dev Container: C# (.NET) @ desktop-linux
OS	Linux arm64 6.10.4-linuxkit
CPUs	unknown (10 x 0)
Memory (System)	7.66GB (4.40GB free)
VM	0%

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[mikekistler]

Full log is attached.

log.txt

[dibarbet]

@mikekistler would you mind also posting the 'C# LSP Trace log' output window contents? Looks like we're getting an invalid URI and the C# LSP trace logs should help figure out what is creating it. You can see instructions for enabling the trace log here - https://github.com/dotnet/vscode-csharp/blob/main/SUPPORT.md#collecting-general-logs

[Error - 2:02:49 PM] [LanguageServerHost] System.UriFormatException: Invalid URI: The hostname could not be parsed.
   at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind, UriCreationOptions& creationOptions)
   at System.Uri..ctor(String uriString)

[mikekistler]

Here's the new log. One observation is that it seems that I need to have the Polyglot notebooks extension installed in order to repro.

log2.txt

[mikekistler]

This is still happening for me, and quite frequently. Is there any additional debug information I can provide?

[dibarbet]

@mikekistler apologies for the delay - it looks like you attached the C# output window logs, but in this case I'll need to look at the logs from the C# LSP Trace Logs output window, if you wouldn't mind collecting those.

Thanks!