LSP - invalid memory address or nil pointer dereference - findOrCreateDefaultConfiguredProjectWorker

[lukpsaxo]

Stack trace

[12:32:06.312] 
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x1 addr=0x8 pc=0x7ff771c39192]

goroutine 432537 [running]:
internal/sync.(*Mutex).Lock(...)
	internal/sync/mutex.go:63
sync.(*Mutex).Lock(...)
	sync/mutex.go:46
github.com/microsoft/typescript-go/internal/project/dirty.(*SyncMapEntry[...]).Value(0xc019b253e0?)
	github.com/microsoft/typescript-go/internal/project/dirty/syncmap.go:58 +0x32
github.com/microsoft/typescript-go/internal/project.(*projectCollectionBuilder).findOrCreateDefaultConfiguredProjectWorker.func2({{0xc019b253e0?, 0x0?}, 0xc019b253e0?, 0x0?})
	github.com/microsoft/typescript-go/internal/project/projectcollectionbuilder.go:543 +0x209
github.com/microsoft/typescript-go/internal/core.BreadthFirstSearchParallelEx[...].func3(0xc2187d54d0)
	github.com/microsoft/typescript-go/internal/core/bfs.go:114 +0x149
created by github.com/microsoft/typescript-go/internal/core.BreadthFirstSearchParallelEx[...].func1-range1 in goroutine 10
	github.com/microsoft/typescript-go/internal/core/bfs.go:99 +0x22f
[Error - 12:32:21 PM] The typescript.native-preview-lsp server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.

Steps to reproduce

Unsure - happened every 20 seconds 5 times in a row, just doing normal file editing.

[lukpsaxo]

I think it happens when I open my eslint.config.mjs file in the root on the project which is not included in any tsconfig file... ?!

Nevermind, it happened again just opening tsx files. It seems very common and wasn't happening friday with the latest extension (which maybe included snapshot lsp, but I am not sure)

[jakebailey]

I get similar errors when working in JS files post #1505. (Might have also seen in loose TS as well)

[lukpsaxo]

We only have strict configs and I am getting the issue only with tsx files open that are under these strict configs.

[andrewbranch]

I haven’t been able to repro this so far. Are you able to provide any more info?

[jakebailey]

For me all I did was open one of the compiler test files in the submodule (or their output js), but I've also experienced this in a dir without a tsconfig.

(Sorry I don't have a better repro, travelling)

[andrewbranch]

@jakebailey are you sure you were seeing this stack trace and not a "No project found for file" error dialog? I quickly discovered an issue with inferred projects fixed at #1633 while trying to repro this, but the symptom is an error message, not a crash in the logs.

[jakebailey]

You're right, it's probably that one mainly; I feel like I have seen the mutex one, though...