x/tools/gopls: nil pointer in analysis #35339

ilanpillemer · 2019-11-04T11:06:27Z

Please answer these questions before submitting your issue. Thanks!

What did you do?

I had gopls running

What did you expect to see?

gopls doing stuff

What did you see instead?

gopls doing stuff and restarting

stack trace of

[Error - 10:36:37.252 AM] Received #2 ToUTF16Column: column is invalid (-1)


panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x1693475]

goroutine 92 [running]:
golang.org/x/tools/internal/lsp/cache.(*actionHandle).analyze(0xc0025b3360, 0x19b0e20, 0xc000270a80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/cache/analysis.go:149 +0x65
golang.org/x/tools/internal/lsp/cache.(*snapshot).Analyze(0xc0000de820, 0x19b0e20, 0xc000270a80, 0xc0002c47c0, 0x32, 0xc000d83000, 0x88, 0x100, 0x0, 0x101, ...)
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/cache/analysis.go:39 +0x25e
golang.org/x/tools/internal/lsp/source.analyses(0x19b0e20, 0xc000270a80, 0x19b3fe0, 0xc0000de820, 0x19b3fa0, 0xc000383b30, 0x0, 0xc0025bb650, 0x1, 0x1)
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/source/diagnostics.go:169 +0x294
golang.org/x/tools/internal/lsp/source.Diagnostics(0x19b0e20, 0xc000270a80, 0x19c1540, 0xc00032e900, 0x239a240, 0xc000218340, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/source/diagnostics.go:87 +0x971
golang.org/x/tools/internal/lsp.(*Server).diagnostics(0xc00029cf00, 0x19c1540, 0xc00032e900, 0xc0002f22d0, 0x4b, 0x0, 0x0)
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/diagnostics.go:30 +0x2e0
created by golang.org/x/tools/internal/lsp.(*Server).didChange
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/text_synchronization.go:82 +0x373
[Trace - 10:36:50.040 AM] Sending request 'initialize - (1)'.
Params: {"processId":0,"rootUri":"file:///","capabilities":{"workspace":{"applyEdit":true,"workspaceEdit":{},"didChangeConfiguration":{},"didChangeWatchedFiles":{},"symbol":{},"executeCommand":{},"workspaceFolders":true},"textDocument":{"synchronization":{},"completion":{},"hover":{},"signatureHelp":{},"declaration":{},"definition":{},"typeDefinition":{},"implementation":{},"references":{},"documentHighlight":{},"documentSymbol":{"hierarchicalDocumentSymbolSupport":true},"codeAction":{"codeActionLiteralSupport":{"codeActionKind":{"valueSet":["source.organizeImports"]}}},"formatting":{},"rangeFormatting":{},"onTypeFormatting":{},"codeLens":{},"documentLink":{},"rename":{},"publishDiagnostics":{},"colorProvider":{},"foldingRange":{},"selectionRange":{}}},"initializationOptions":{"hoverKind":"FullDocumentation","staticcheck":true},"workspaceFolders":[{"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm","name":"/Users/ilanpillemer/Repos/bxbdigital/bx-mm"},{"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/bx-pipe","name":"/Users/ilanpillemer/Repos/bxbdigital/bx-mm/bx-pipe"},{"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler","name":"/Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler"},{"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bxrepl/cmd/bxrepl","name":"/Users/ilanpillemer/Repos/bxbdigital/bxrepl/cmd/bxrepl"}]}

another example

[Trace - 10:36:34.203 AM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/04 10:36:34 go/packages.Load\n\tpackage = bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler\n\tfiles = [/Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/bx.go /Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/compilerflags.go /Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/fieldtype_string.go /Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/interpreter.go /Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/lexer.go /Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/parser.go /Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/symbols.go]"}


[Trace - 10:36:34.304 AM] Received response 'textDocument/completion - (2)' in 299ms.
Result: {"isIncomplete":false,"items":[]}


panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x1693475]

goroutine 31 [running]:
golang.org/x/tools/internal/lsp/cache.(*actionHandle).analyze(0xc002542d20, 0x19b0e20, 0xc000282a20, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/cache/analysis.go:149 +0x65
golang.org/x/tools/internal/lsp/cache.(*snapshot).Analyze(0xc00025c190, 0x19b0e20, 0xc000282a20, 0xc0001d4f00, 0x32, 0xc001ced800, 0x88, 0x100, 0x0, 0x101, ...)
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/cache/analysis.go:39 +0x25e
golang.org/x/tools/internal/lsp/source.analyses(0x19b0e20, 0xc000282a20, 0x19b3fe0, 0xc00025c190, 0x19b3fa0, 0xc00024d0e0, 0x0, 0xc0023810b0, 0x1, 0x1)
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/source/diagnostics.go:169 +0x294
golang.org/x/tools/internal/lsp/source.Diagnostics(0x19b0e20, 0xc000282a20, 0x19c1540, 0xc000001980, 0x5400008, 0xc00018c580, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/source/diagnostics.go:87 +0x971
golang.org/x/tools/internal/lsp.(*Server).diagnostics(0xc000169ce0, 0x19c1540, 0xc000001980, 0xc00003c1e0, 0x4b, 0x0, 0x0)
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/diagnostics.go:30 +0x2e0
created by golang.org/x/tools/internal/lsp.(*Server).didChange
	/Users/ilanpillemer/go/src/golang.org/x/tools/internal/lsp/text_synchronization.go:82 +0x373
[Trace - 10:36:35.026 AM] Sending request 'initialize - (1)'

Build info

golang.org/x/tools/gopls v0.1.6
    golang.org/x/tools/gopls@(devel)
    github.com/BurntSushi/[email protected] h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
    github.com/sergi/[email protected] h1:Kpca3qRNrduNnOQeazBd0ysaKrUJiIuISHxogkT9RPQ=
    golang.org/x/[email protected] h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU=
    golang.org/x/[email protected] => ../
    golang.org/x/[email protected] h1:9zdDQZ7Thm29KFXgAX/+yaf3eVbP7djjWp/dXAppNCc=
    honnef.co/go/[email protected] h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=

Go info

go version go1.13.3 darwin/amd64

GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/ilanpillemer/Library/Caches/go-build"
GOENV="/Users/ilanpillemer/Library/Application Support/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GONOPROXY="bitbucket.org/bxbdigital"
GONOSUMDB="bitbucket.org/bxbdigital"
GOOS="darwin"
GOPATH="/Users/ilanpillemer/go"
GOPRIVATE="bitbucket.org/bxbdigital"
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/Cellar/go/1.13.3/libexec"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/Cellar/go/1.13.3/libexec/pkg/tool/darwin_amd64"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/z4/rs3f6lcs10l9rhf6wg4vdjt80000gn/T/go-build158073267=/tmp/go-build -gno-record-gcc-switches -fno-common"

The text was updated successfully, but these errors were encountered:

gopherbot · 2019-11-04T11:06:31Z

Thank you for filing a gopls issue! Please take a look at the Troubleshooting guide, and make sure that you have provided all of the relevant information here.

gopherbot · 2019-11-04T19:35:55Z

Change https://golang.org/cl/205161 mentions this issue: internal/lsp: add additional check for analysis value

stamblerre · 2019-11-04T19:37:25Z

Just mailed CL 205161 to handle this, but I'm curious about how you triggered it. Do you mind rebuilding gopls with this CL (download it by clicking the "..." in the right hand corner and choosing "Download Patch") and sharing the log output?

ilanpillemer · 2019-11-04T22:16:02Z

I can't work out how to download the patch.. I must be misunderstanding something.
I can only try again later tomorrow though, as have an appointment in the morning. If I were to guess at anything unusual, is I am using go generate in this package for goyacc and stringer and have a yacc y file in it with go code. And it keeps telling me the yacc file doesn't exist.. when it does.. and also after I run go generate it seems to miss the new stuff stringer creates.

Updates golang/go#35339 Change-Id: Ie990672b619d1844f66abf62010fe9a69daf00d9 Reviewed-on: https://go-review.googlesource.com/c/tools/+/205161 Run-TryBot: Rebecca Stambler <[email protected]> TryBot-Result: Gobot Gobot <[email protected]> Reviewed-by: Ian Cottrell <[email protected]>

stamblerre · 2019-11-05T02:32:54Z

I've just tagged a pre-release of gopls that has the fix in: go get golang.org/x/tools/[email protected] should download it now. Whenever you get a chance, please let me know if that fixed the issue.

ilanpillemer · 2019-11-05T07:02:20Z

will do when I get back home later.

ilanpillemer · 2019-11-05T12:25:35Z

I am still getting errors.

I changed my startup script to this (commenting out the install steps).. maybe I did this wrong?

[  "$(pgrep acme-lsp)" ] && kill `pgrep acme-lsp`
[  "$(pgrep gopls)" ] && kill `pgrep gopls`
# GO111MODULE=on go get golang.org/x/tools/gopls@latest
GO111MODULE=on go get golang.org/x/tools/[email protected]
#go get -u golang.org/x/tools/gopls
#cd ~/go/src/golang.org/x/tools/gopls && go install

acme-lsp

and got this stack trace

[Trace - 12:21:42.121 PM] Received notification 'textDocument/publishDiagnostics'.
Params: {"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/cmd/main.go","diagnostics":[]}


panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x8 pc=0x1687364]

goroutine 86 [running]:
golang.org/x/tools/internal/lsp/cache.(*actionHandle).analyze(0xc001fc4960, 0x19a6d20, 0xc000284870, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
        /Users/ilanpillemer/go/pkg/mod/golang.org/x/[email protected]/internal/lsp/cache/analysis.go:151 +0x74
golang.org/x/tools/internal/lsp/cache.(*snapshot).Analyze(0xc00021a6e0, 0x19a6d20, 0xc000284870, 0xc000181c80, 0x32, 0xc001a79000, 0x88, 0x100, 0x0, 0x101, ...)
        /Users/ilanpillemer/go/pkg/mod/golang.org/x/[email protected]/internal/lsp/cache/analysis.go:39 +0x25e
golang.org/x/tools/internal/lsp/source.analyses(0x19a6d20, 0xc000284870, 0x19ac8a0, 0xc00021a6e0, 0x19a9f60, 0xc00021ae10, 0x0, 0xc00208a510, 0x1, 0x1)
        /Users/ilanpillemer/go/pkg/mod/golang.org/x/[email protected]/internal/lsp/source/diagnostics.go:169 +0x294
golang.org/x/tools/internal/lsp/source.Diagnostics(0x19a6d20, 0xc000284870, 0x19b8960, 0xc0000c6000, 0x27c6840, 0xc0003fa040, 0x0, 0x0, 0x0, 0x0, ...)
        /Users/ilanpillemer/go/pkg/mod/golang.org/x/[email protected]/internal/lsp/source/diagnostics.go:87 +0x971
golang.org/x/tools/internal/lsp.(*Server).diagnostics(0xc000296840, 0x19b8960, 0xc0000c6000, 0xc000468000, 0x4e, 0x0, 0x0)
        /Users/ilanpillemer/go/pkg/mod/golang.org/x/[email protected]/internal/lsp/diagnostics.go:30 +0x2e0
created by golang.org/x/tools/internal/lsp.(*Server).didOpen
        /Users/ilanpillemer/go/pkg/mod/golang.org/x/[email protected]/internal/lsp/text_synchronization.go:34 +0x1c8
[Trace - 12:21:57.781 PM] Sending request 'initialize - (1)'.
Params: {"processId":0,"rootUri":"file:///","capabilities":{"workspace":{"applyEdit":true,"workspaceEdit":{},"didChangeConfiguration":{},"didChangeWatchedFiles":{},"symbol":{},"executeCommand":{},"workspaceFolders":true},"textDocument":{"synchronization
":{},"completion":{},"hover":{},"signatureHelp":{},"declaration":{},"definition":{},"typeDefinition":{},"implementation":{},"references":{},"documentHighlight":{},"documentSymbol":{"hierarchicalDocumentSymbolSupport":true},"codeAction":{"codeActionLiter
alSupport":{"codeActionKind":{"valueSet":["source.organizeImports"]}}},"formatting":{},"rangeFormatting":{},"onTypeFormatting":{},"codeLens":{},"documentLink":{},"rename":{},"publishDiagnostics":{},"colorProvider":{},"foldingRange":{},"selectionRange":{
}}},"initializationOptions":{"hoverKind":"FullDocumentation","staticcheck":true},"workspaceFolders":[{"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm","name":"/Users/ilanpillemer/Repos/bxbdigital/bx-mm"},{"uri":"file:///Users/ilanpillemer/Repos
/bxbdigital/bx-mm/bx-pipe","name":"/Users/ilanpillemer/Repos/bxbdigital/bx-mm/bx-pipe"},{"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler","name":"/Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler"},{"uri":"file:
///Users/ilanpillemer/Repos/bxbdigital/bxrepl/cmd/bxrepl","name":"/Users/ilanpillemer/Repos/bxbdigital/bxrepl/cmd/bxrepl"}]}

gopherbot · 2019-11-05T19:46:21Z

Change https://golang.org/cl/205500 mentions this issue: internal/lsp: debugging CL for golang/go#35339

stamblerre · 2019-11-05T19:54:23Z

@ilanpillemer: Just uploaded CL 205500 for you to try again. To install it, cd into your ~/go/src/golang.org/x/tools directory, sync to master, and then select "Download Patch" from the "..." menu in the top right corner. Copy the "Cherry Pick" command and then execute it in the tools directory. Rebuild gopls (cd gopls && go install && cd ..), and then you should be running with the CL.

ilanpillemer · 2019-11-05T22:04:41Z

will do first thing tomorrow morning (though if sync to latest do I lose static check?) or is static check etc included in the CL patch?

stamblerre · 2019-11-05T22:06:58Z

Thanks! And no, staticcheck is in at master - you just need to opt-in with the configuration.

ilanpillemer · 2019-11-05T22:09:12Z

I feel I am misunderstanding something.. so I sync the tools directory to latest, but I build gopls from master and then add the patch?

stamblerre · 2019-11-05T22:14:34Z

Oh I'm sorry, I should've been more precise with my language. I didn't mean latest as in the latest tag, but rather latest as in master. Edited my comment.

ilanpillemer · 2019-11-05T22:18:03Z

thanks! first thing tomorrow when I get back into the code I am working on I will do that.

ilanpillemer · 2019-11-06T10:30:10Z

I have applied the patch..

Here are some logs that may help understand what is happening?

[Trace - 10:27:19.277 AM] Sending request 'textDocument/definition - (8)'.
Params: {"textDocument":{"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/lexer.go"},"position":{"line":136,"character":12}}


[Trace - 10:27:19.287 AM] Received response 'textDocument/definition - (8)' in 9ms.
Result: [{"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/lexer.go","range":{"start":{"line":674,"character":16},"end":{"line":674,"character":32}}}]


2019/11/06 10:27:19 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:SA4006
[Trace - 10:27:19.357 AM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/06 10:27:19 nil analyses\n\tpackage = bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler\n\tanalysis = SA4006"}


[Trace - 10:27:19.357 AM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2019/11/06 10:27:19 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:SA4006"}


2019/11/06 10:27:19 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1016
[Trace - 10:27:19.365 AM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2019/11/06 10:27:19 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1016"}


[Trace - 10:27:19.365 AM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/06 10:27:19 nil analyses\n\tpackage = bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler\n\tanalysis = ST1016"}


2019/11/06 10:27:19 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1000
[Trace - 10:27:19.365 AM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2019/11/06 10:27:19 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1000"}


[Trace - 10:27:19.365 AM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/06 10:27:19 nil analyses\n\tpackage = bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler\n\tanalysis = ST1000"}

[Trace - 10:29:38.291 AM] Received notification 'textDocument/publishDiagnostics'.
Params: {"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/cmd/main.go","diagnostics":[]}


2019/11/06 10:29:38 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:SA4006
[Trace - 10:29:38.363 AM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/06 10:29:38 nil analyses\n\tpackage = bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler\n\tanalysis = SA4006"}


[Trace - 10:29:38.363 AM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2019/11/06 10:29:38 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:SA4006"}


2019/11/06 10:29:38 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1016
[Trace - 10:29:38.385 AM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/06 10:29:38 nil analyses\n\tpackage = bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler\n\tanalysis = ST1016"}


[Trace - 10:29:38.385 AM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2019/11/06 10:29:38 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1016"}


2019/11/06 10:29:38 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1000
[Trace - 10:29:38.385 AM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/06 10:29:38 nil analyses\n\tpackage = bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler\n\tanalysis = ST1000"}


[Trace - 10:29:38.385 AM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2019/11/06 10:29:38 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1000"}


[Trace - 10:29:38.387 AM] Received notification 'textDocument/publishDiagnostics'.
Params: {"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/lexer.go","diagnostics":[]}

2019/11/06 10:32:34 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1016
2019/11/06 10:32:34 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1000

stamblerre · 2019-11-06T23:36:38Z

Thank you for sharing these logs! I just uploaded another patchset to CL 205500 if you'd be willing to try again and share the logs.

ilanpillemer · 2019-11-07T10:32:42Z

Of course. Will do soon.

ilanpillemer · 2019-11-07T11:06:30Z

please find log attached.. hope it helps!
gopls.log

I didn't use stringer during the time of log generation.. let me know if you need another log after I do.. or if this tells you enough. I made some changes to the y file during these logs.

ilanpillemer · 2019-11-07T11:20:13Z

just in case.. I created a dummy new value.. reran go generate (which also used stringer) and here are the logs. I also restarted gopls between log generation. So previous log when a change was made in goyacc, and this one stringer. eg

//go:generate stringer -type=fieldType,bxState
//go:generate goyacc -o bx.go -p bx bx.y

gopls.log

stamblerre · 2019-11-07T16:12:31Z

Thank you! Looks like one staticcheck pass is failing in some unexpected way. Just uploaded another patchset to CL 205500 if you'd be willing to try again.

ilanpillemer · 2019-11-07T16:14:41Z

I am very happy and willing to help as long as it takes.

stamblerre · 2019-11-07T16:18:02Z

Great thank you so much! Pushed one more update so the quantity of log messages will be less overwhelming.

ilanpillemer · 2019-11-07T16:37:07Z

ok. here is the log from before the last push (doesn't have the update to reduce quantity of log messages)..

gopls.log

the stderror was full of this too

[Trace - 16:21:29.189 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:21:29 running pass for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:atomicalign"}


work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
[Trace - 16:21:29.189 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:21:29 inside of the defer for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:atomicalign"}


work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
work queue is full
[Trace - 16:21:29.189 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:21:29 running pass for time:ctrlflow"}

ilanpillemer · 2019-11-07T16:48:03Z

Here are the logs after the latest patchset

gopls.log

Here are some extracts from stderror

[Trace - 16:40:21.413 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 running analyses for internal/poll:inspect"}


[Trace - 16:40:21.413 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 dep results: map[], err: \u003cnil\u003e"}


[Trace - 16:40:21.413 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 running analyses for path/filepath:inspect"}


[Trace - 16:40:21.413 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 dep results: map[], err: \u003cnil\u003e"}


[Trace - 16:40:21.413 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 dep results: map[], err: \u003cnil\u003e"}


[Trace - 16:40:21.413 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 dep results: map[], err: \u003cnil\u003e"}


[Trace - 16:40:21.413 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 dep results: map[], err: \u003cnil\u003e"}


[Trace - 16:40:21.413 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 dep results: map[], err: \u003cnil\u003e"}


[Trace - 16:40:21.413 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 dep results: map[], err: \u003cnil\u003e"}


[Trace - 16:40:21.413 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 running analyses for math/rand:inspect"}


[Trace - 16:40:21.413 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 running analyses for internal/oserror:inspect"}


[Trace - 16:40:21.414 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 dep results: map[], err: \u003cnil\u003e"}


[Trace - 16:40:21.414 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 dep results: map[], err: \u003cnil\u003e"}


[Trace - 16:40:21.414 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:40:21 dep results: map[], err: \u003cnil\u003e"}

[Trace - 16:42:48.264 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 running analyses for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1003"}


[Trace - 16:42:48.264 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 dep results: map[], err: \u003cnil\u003e"}


[Trace - 16:42:48.264 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 running analyses for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1011"}


[Trace - 16:42:48.265 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 dep results: map[[email protected]/bxbdigital/bx-mm/internal/bxcompiler:0xc01340d4a0 [email protected]/bxbdigital/bx-mm/internal/bxcompiler:0xc01376eaf0 [email protected]/bxbdigital/bx-mm/internal/bxcompiler:0xc010b22730], err: \u003cnil\u003e"}


[Trace - 16:42:48.265 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 running analyses for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1013"}


[Trace - 16:42:48.266 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 dep results: map[[email protected]/bxbdigital/bx-mm/internal/bxcompiler:0xc010bdc000], err: \u003cnil\u003e"}


[Trace - 16:42:48.266 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 running analyses for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1016"}


2019/11/07 16:42:48 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1016
[Trace - 16:42:48.266 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 nil analyses\n\tpackage = bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler\n\tanalysis = ST1016"}


[Trace - 16:42:48.266 PM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2019/11/07 16:42:48 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1016"}


[Trace - 16:42:48.266 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 running analyses for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1018"}


[Trace - 16:42:48.266 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 dep results: map[[email protected]/bxbdigital/bx-mm/internal/bxcompiler:0xc00eaabc20], err: \u003cnil\u003e"}


[Trace - 16:42:48.266 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 dep results: map[], err: \u003cnil\u003e"}


[Trace - 16:42:48.266 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 nil analyses\n\tpackage = bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler\n\tanalysis = ST1000"}


2019/11/07 16:42:48 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1000
[Trace - 16:42:48.266 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 running analyses for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1000"}


[Trace - 16:42:48.266 PM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2019/11/07 16:42:48 no results: unexpected nil analysis for bitbucket.org/bxbdigital/bx-mm/internal/bxcompiler:ST1000"}


[Trace - 16:42:48.267 PM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/07 16:42:48 dep results: map[[email protected]/bxbdigital/bx-mm/internal/bxcompiler:0xc010bdc000], err: \u003cnil\u003e"}

stamblerre · 2019-11-07T18:31:22Z

Wow I can't believe it took me this long to catch it! The nil pointer was coming from line 344 in internal/lsp/cache/analysis.go. Uploaded a new patchset if you'd like to take another look at it, but I think I will send out the fix for this ASAP.

gopherbot · 2019-11-07T18:36:23Z

Change https://golang.org/cl/205859 mentions this issue: internal/lsp/cache: handle a nil pointer exception in analysis

ilanpillemer · 2019-11-07T19:19:09Z

I won't be ablt to check until tomorrow morning.

ilanpillemer · 2019-11-08T15:40:39Z

logs after latest fix attached
gopls.log

Updates golang/go#35339 Change-Id: I2611b1a61bcf777fe4ce0f5446d1897c5698af86 Reviewed-on: https://go-review.googlesource.com/c/tools/+/205859 Run-TryBot: Rebecca Stambler <[email protected]> TryBot-Result: Gobot Gobot <[email protected]> Reviewed-by: Ian Cottrell <[email protected]>

gopherbot · 2019-11-08T19:45:50Z

Change https://golang.org/cl/206149 mentions this issue: internal/lsp/cache: handle a nil pointer exception in analysis

stamblerre · 2019-11-08T19:47:32Z

Thanks! Just pushed another update to the CL :) The change that actually fixes the nil pointer has been merged and cherry-picked for the release, so thank you for helping me find that! The remaining investigation will help us understand why there is an error creating an error message here.

Updates golang/go#35339 Change-Id: I2611b1a61bcf777fe4ce0f5446d1897c5698af86 Reviewed-on: https://go-review.googlesource.com/c/tools/+/205859 Run-TryBot: Rebecca Stambler <[email protected]> TryBot-Result: Gobot Gobot <[email protected]> Reviewed-by: Ian Cottrell <[email protected]> (cherry picked from commit b93886d) Reviewed-on: https://go-review.googlesource.com/c/tools/+/206149 Reviewed-by: Heschi Kreinick <[email protected]>

ilanpillemer · 2019-11-10T03:35:32Z

On Monday I will apply the latest CL and send the logs.

ilanpillemer · 2019-11-11T11:50:46Z

some more logs
gopls.log

and some extracts from stderr

[Trace - 11:04:57.019 AM] Sending notification 'textDocument/didSave'.
Params: {"textDocument":{"version":0,"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/lexer.go"}}


[Trace - 11:04:57.019 AM] Sending request 'textDocument/codeAction - (13)'.
Params: {"textDocument":{"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/lexer.go"},"range":{"start":{"line":0,"character":0},"end":{"line":0,"character":0}},"context":{"diagnostics":null,"only":["source.organizeImports"]}}


[Trace - 11:04:57.043 AM] Received response 'textDocument/codeAction - (13)' in 23ms.
Result: {}


[Trace - 11:04:57.043 AM] Sending request 'textDocument/formatting - (14)'.
Params: {"textDocument":{"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/lexer.go"},"options":{"tabSize":0,"insertSpaces":false,"key":null}}


[Trace - 11:04:57.049 AM] Received response 'textDocument/formatting - (14)' in 6ms.
Result: []


2019/11/11 11:04:57 no results: ToUTF16Column: column is invalid (-1)
[Trace - 11:04:57.111 AM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/11 11:04:57 fixes for /Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/yaccpar:332:/Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/yaccpar:332 is [], \u003cnil\u003e"}


[Trace - 11:04:57.111 AM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/11 11:04:57 related information for /Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/yaccpar:332:/Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/yaccpar:332 is [], \u003cnil\u003e"}


[Trace - 11:04:57.111 AM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/11 11:04:57 rng: 0:0-0:0, err: ToUTF16Column: column is invalid (-1)"}


[Trace - 11:04:57.111 AM] Received notification 'window/logMessage'.
Params: {"type":3,"message":"2019/11/11 11:04:57 spn for /Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/yaccpar:332:/Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/yaccpar:332 is /Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/bx.go:332-, \u003cnil\u003e"}


[Trace - 11:04:57.111 AM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2019/11/11 11:04:57 no results: ToUTF16Column: column is invalid (-1)"}


2019/11/11 11:04:57 no results: ToUTF16Column: column is invalid (-1)
[Trace - 11:04:57.121 AM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2019/11/11 11:04:57 no results: ToUTF16Column: column is invalid (-1)"}


2019/11/11 11:04:57 no results: ToUTF16Column: column is invalid (-1)
[Trace - 11:04:57.121 AM] Received notification 'window/logMessage'.
Params: {"type":1,"message":"2019/11/11 11:04:57 no results: ToUTF16Column: column is invalid (-1)"}


[Trace - 11:04:57.123 AM] Received notification 'textDocument/publishDiagnostics'.
Params: {"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/lexer.go","diagnostics":[]}


[Trace - 11:04:57.123 AM] Received notification 'textDocument/publishDiagnostics'.
Params: {"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/parser.go","diagnostics":[]}


[Trace - 11:04:57.123 AM] Received notification 'textDocument/publishDiagnostics'.
Params: {"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/symbols.go","diagnostics":[]}


[Trace - 11:04:57.123 AM] Received notification 'textDocument/publishDiagnostics'.
Params: {"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/bx.go","diagnostics":[]}


[Trace - 11:04:57.123 AM] Received notification 'textDocument/publishDiagnostics'.
Params: {"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/compilerflags.go","diagnostics":[]}


[Trace - 11:04:57.123 AM] Received notification 'textDocument/publishDiagnostics'.
Params: {"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/fieldtype_string.go","diagnostics":[]}


[Trace - 11:04:57.123 AM] Received notification 'textDocument/publishDiagnostics'.
Params: {"uri":"file:///Users/ilanpillemer/Repos/bxbdigital/bx-mm/internal/bxcompiler/interpreter.go","diagnostics":[]}


acme-lsp$

ilanpillemer · 2019-11-12T11:41:14Z

might be related to
#33690

ilanpillemer · 2019-11-12T12:10:57Z

some more logs
gopls.log

stamblerre · 2019-12-04T01:12:00Z

This error now appears to be related to #34433 and the use of yacc with gopls. I will close this issue as a duplicate of that one.

gopherbot added the gopls Issues related to the Go language server, gopls. label Nov 4, 2019

stamblerre changed the title ~~gopls: gopls restarting repeatedly~~ x/tools/gopls: nil pointer in analysis Nov 4, 2019

gopherbot added this to the Unreleased milestone Nov 4, 2019

gopherbot added the Tools This label describes issues relating to any tools in the x/tools repository. label Nov 4, 2019

stamblerre self-assigned this Nov 7, 2019

stamblerre closed this as completed Dec 4, 2019

golang locked and limited conversation to collaborators Dec 3, 2020

gopherbot added the FrozenDueToAge label Dec 3, 2020

rsc unassigned stamblerre Jun 23, 2022

x/tools/gopls: nil pointer in analysis #35339

x/tools/gopls: nil pointer in analysis #35339

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