gopls: automated issue report (crash)

[tonghia]

gopls version: v0.15.3/go1.22.3
gopls flags:
update flags: proxy
extension version: 0.41.4
environment: Visual Studio Code linux
initialization error: undefined
issue timestamp: Thu, 09 May 2024 08:56:59 GMT
restart history:
Thu, 09 May 2024 08:26:00 GMT: activation (enabled: true)

ATTENTION: PLEASE PROVIDE THE DETAILS REQUESTED BELOW.

Describe what you observed.

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xb8cb5c]

goroutine 96339 [running]:
go/token.(*File).Name(...)
	  position.go:109
golang.org/x/tools/gopls/internal/golang.mapPosition({0x1293cc8, 0xc032179e30}, 0x0%3F, {0x128b8a0, 0xc000f8ad80}, 0x0, 0x7)
	  definition.go:301  0x5c
golang.org/x/tools/gopls/internal/golang.OutgoingCalls({0x1293cc8%3F, 0xc032179d10%3F}, 0xc000f8ad80, {0x12966e0, 0xc000aec1e0}, {0x121%3F, 0x0%3F})
	  call_hierarchy.go:282  0xb32
golang.org/x/tools/gopls/internal/server.(*server).OutgoingCalls(0xc0003fa000, {0x1293d00%3F, 0xc0325740f0%3F}, 0xc03144c280)
	  call_hierarchy.go:58  0x195
golang.org/x/tools/gopls/internal/protocol.serverDispatch({0x1293d00, 0xc0325740f0}, {0x12ae940, 0xc0003fa000}, 0xc032179b30, {0x1293ec0, 0xc032568fc0})
	  tsserver.go:131  0x4daa
golang.org/x/tools/gopls/internal/lsprpc.(*streamServer).ServeStream.ServerHandler.func3({0x1293d00, 0xc0325740f0}, 0xc032179b30, {0x1293ec0, 0xc032568fc0})
	  protocol.go:160  0x85
golang.org/x/tools/gopls/internal/lsprpc.(*streamServer).ServeStream.handshaker.func4({0x1293d00, 0xc0325740f0}, 0xc032179b30, {0x1293ec0, 0xc032568fc0})
	  lsprpc.go:509  0x923
golang.org/x/tools/gopls/internal/protocol.Handlers.MustReplyHandler.func1({0x1293d00, 0xc0325740f0}, 0xc0320c5038, {0x1293ec0, 0xc032568fc0})
	  handler.go:35  0xc6
golang.org/x/tools/gopls/internal/protocol.Handlers.AsyncHandler.func2.2()
	  handler.go:103  0x96
created by golang.org/x/tools/gopls/internal/protocol.Handlers.AsyncHandler.func2 in goroutine 141
	  handler.go:100  0x1c5

gopls stats -anon

{ "DirStats": { "Files": 3916, "TestdataFiles": 0, "GoFiles": 212, "ModFiles": 1, "Dirs": 326 }, "GOARCH": "amd64", "GOOS": "linux", "GOPACKAGESDRIVER": "", "GOPLSCACHE": "", "GoVersion": "go1.22.3", "GoplsVersion": "v0.15.3", "InitialWorkspaceLoadDuration": "3.93463926s", "MemStats": { "HeapAlloc": 107380512, "HeapInUse": 165896192, "TotalAlloc": 1646601960 }, "WorkspaceStats": { "Files": { "Total": 3878, "Largest": 4950165, "Errs": 0 }, "Views": [ { "GoCommandVersion": "go1.22.3", "AllPackages": { "Packages": 717, "LargestPackage": 161, "CompiledGoFiles": 3889, "Modules": 112 }, "WorkspacePackages": { "Packages": 33, "LargestPackage": 52, "CompiledGoFiles": 226, "Modules": 1 }, "Diagnostics": 0 } ] } }

OPTIONAL: If you would like to share more information, you can attach your complete gopls logs.

NOTE: THESE MAY CONTAIN SENSITIVE INFORMATION ABOUT YOUR CODEBASE.
DO NOT SHARE LOGS IF YOU ARE WORKING IN A PRIVATE REPOSITORY.

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[Info  - 3:56:57 PM] 2024/05/09 15:56:57 go/packages.Load #1: updating metadata for 717 packages

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xb8cb5c]

goroutine 96339 [running]:
go/token.(*File).Name(...)
	/usr/local/go/src/go/token/position.go:109
golang.org/x/tools/gopls/internal/golang.mapPosition({0x1293cc8, 0xc032179e30}, 0x0?, {0x128b8a0, 0xc000f8ad80}, 0x0, 0x7)
	/home/username/go/pkg/mod/golang.org/x/tools/gopls@v0.15.3/internal/golang/definition.go:301 +0x5c
golang.org/x/tools/gopls/internal/golang.OutgoingCalls({0x1293cc8?, 0xc032179d10?}, 0xc000f8ad80, {0x12966e0, 0xc000aec1e0}, {0x121?, 0x0?})
	/home/username/go/pkg/mod/golang.org/x/tools/gopls@v0.15.3/internal/golang/call_hierarchy.go:282 +0xb32
golang.org/x/tools/gopls/internal/server.(*server).OutgoingCalls(0xc0003fa000, {0x1293d00?, 0xc0325740f0?}, 0xc03144c280)
	/home/username/go/pkg/mod/golang.org/x/tools/gopls@v0.15.3/internal/server/call_hierarchy.go:58 +0x195
golang.org/x/tools/gopls/internal/protocol.serverDispatch({0x1293d00, 0xc0325740f0}, {0x12ae940, 0xc0003fa000}, 0xc032179b30, {0x1293ec0, 0xc032568fc0})
	/home/username/go/pkg/mod/golang.org/x/tools/gopls@v0.15.3/internal/protocol/tsserver.go:131 +0x4daa
golang.org/x/tools/gopls/internal/lsprpc.(*streamServer).ServeStream.ServerHandler.func3({0x1293d00, 0xc0325740f0}, 0xc032179b30, {0x1293ec0, 0xc032568fc0})
	/home/username/go/pkg/mod/golang.org/x/tools/gopls@v0.15.3/internal/protocol/protocol.go:160 +0x85
golang.org/x/tools/gopls/internal/lsprpc.(*streamServer).ServeStream.handshaker.func4({0x1293d00, 0xc0325740f0}, 0xc032179b30, {0x1293ec0, 0xc032568fc0})
	/home/username/go/pkg/mod/golang.org/x/tools/gopls@v0.15.3/internal/lsprpc/lsprpc.go:509 +0x923
golang.org/x/tools/gopls/internal/protocol.Handlers.MustReplyHandler.func1({0x1293d00, 0xc0325740f0}, 0xc0320c5038, {0x1293ec0, 0xc032568fc0})
	/home/username/go/pkg/mod/golang.org/x/tools@v0.18.1-0.20240412183611-d92ae0781217/internal/jsonrpc2/handler.go:35 +0xc6
golang.org/x/tools/gopls/internal/protocol.Handlers.AsyncHandler.func2.2()
	/home/username/go/pkg/mod/golang.org/x/tools@v0.18.1-0.20240412183611-d92ae0781217/internal/jsonrpc2/handler.go:103 +0x96
created by golang.org/x/tools/gopls/internal/protocol.Handlers.AsyncHandler.func2 in goroutine 141
	/home/username/go/pkg/mod/golang.org/x/tools@v0.18.1-0.20240412183611-d92ae0781217/internal/jsonrpc2/handler.go:100 +0x1c5
[Error - 3:56:59 PM] 

This happen while I was using VSCode debugger and the debugger is pointing at the panic code.

[suzmue]

Thanks for filing this issue! This looks like it's another instance of golang/go#66923.

On a panic its likely it was paused at fatalpanic or fatalthrow, which also uses the unsafe package,