cmd/compile: internal compiler error: panic: runtime error: invalid memory address or nil pointer dereference

[earl-warren]

I will keep the branch reproducing the bug until it is fixed. Note that go 1.18.4 compiles fine with the same codebase.

What version of Go are you using (go version)?

$ go version
go version go1.19 linux/amd64

Does this issue reproduce with the latest release?

Yes.

What operating system and processor architecture are you using (go env)?

go env Output

$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/root/.cache/go-build"
GOENV="/root/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.19"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/dev/null"
GOWORK=""
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 -Wl,--no-gc-sections -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build2924617207=/tmp/go-build -gno-record-gcc-switches"

What did you do?

git clone --recursive --branch wip-go1.19-bug https://lab.forgefriends.org/earl-warren/gof3
cd gof3
go test -v lab.forgefriends.org/friendlyforgeformat/gof3/forges/...

Here is a run in the go 1.19 Debian GNU/Linux docker image to help avoid environmental variance:

$ docker run --rm -ti golang:1.19-bullseye bash
root@7acb76a89733:/go# git clone --recursive --branch wip-go1.19-bug https://lab.forgefriends.org/earl-warren/gof3
Cloning into 'gof3'...
warning: redirecting to https://lab.forgefriends.org/earl-warren/gof3.git/
remote: Enumerating objects: 2088, done.
remote: Counting objects: 100% (731/731), done.
remote: Compressing objects: 100% (350/350), done.
remote: Total 2088 (delta 511), reused 533 (delta 357), pack-reused 1357
Receiving objects: 100% (2088/2088), 557.88 KiB | 113.00 KiB/s, done.
Resolving deltas: 100% (1414/1414), done.
Submodule 'format/schemas' (https://lab.forgefriends.org/friendlyforgeformat/f3-schemas) registered for path 'format/schemas'
Cloning into '/go/gof3/format/schemas'...
warning: redirecting to https://lab.forgefriends.org/friendlyforgeformat/f3-schemas.git/
remote: Enumerating objects: 53, done.        
remote: Counting objects: 100% (6/6), done.        
remote: Compressing objects: 100% (6/6), done.        
remote: Total 53 (delta 2), reused 0 (delta 0), pack-reused 47
Receiving objects: 100% (53/53), 11.84 KiB | 40.00 KiB/s, done.
Resolving deltas: 100% (29/29), done.
Submodule path 'format/schemas': checked out '89e975e7838a791fd4d84d523c91591eaec0ee8a'
root@7acb76a89733:/go# cd gof3
root@7acb76a89733:/go/gof3# go test -v lab.forgefriends.org/friendlyforgeformat/gof3/forges/...
go: downloading github.com/google/go-cmp v0.5.8
go: downloading github.com/stretchr/testify v1.7.0
go: downloading gitea.com/earl-warren/go-sdk/gitea v0.15.1-0.20220821233938-49e74ff9d331
go: downloading github.com/santhosh-tekuri/jsonschema/v5 v5.0.0
go: downloading golang.org/x/exp v0.0.0-20220516143420-24438e51023a
go: downloading github.com/davecgh/go-spew v1.1.0
go: downloading github.com/pmezard/go-difflib v1.0.0
go: downloading gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
go: downloading github.com/go-fed/httpsig v1.1.0
go: downloading github.com/hashicorp/go-version v1.5.0
go: downloading golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e
go: downloading golang.org/x/sys v0.0.0-20211019181941-9d821ace8654
# lab.forgefriends.org/friendlyforgeformat/gof3/forges [lab.forgefriends.org/friendlyforgeformat/gof3/forges.test]
<autogenerated>:1: internal compiler error: panic: runtime error: invalid memory address or nil pointer dereference

See a run in the CI here.

What did you expect to see?

The output of the tests

What did you see instead?

 lab.forgefriends.org/friendlyforgeformat/gof3/forges [lab.forgefriends.org/friendlyforgeformat/gof3/forges.test]
<autogenerated>:1: internal compiler error: panic: runtime error: invalid memory address or nil pointer dereference

Please file a bug report including a short program that triggers the error.
https://go.dev/issue/new

[cuonglm]

This is likely a duplicated issue, but I can't reproduce in my local to verify.

go1.19 test -v lab.forgefriends.org/friendlyforgeformat/gof3/forges/...

# code.gitea.io/sdk/gitea
../go/pkg/mod/gitea.com/earl-warren/go-sdk/gitea@v0.15.1-0.20220821233938-49e74ff9d331/httpsign.go:106:17: undefined: GetAgent
FAIL	lab.forgefriends.org/friendlyforgeformat/gof3/forges [build failed]
?   	lab.forgefriends.org/friendlyforgeformat/gof3/forges/abstract	[no test files]
?   	lab.forgefriends.org/friendlyforgeformat/gof3/forges/common	[no test files]
?   	lab.forgefriends.org/friendlyforgeformat/gof3/forges/driver	[no test files]
=== RUN   TestFile
2022/08/27 11:15:56 downloading asset asset 1 using function 0x1005c9190
--- FAIL: TestFile (0.44s)
panic: /var/folders/1s/1zd62h955bv9tg86ncz81k080000gn/T/TestFile1157639037/002/project.json: jsonschema: '' does not validate with file:///Users/cuonglm/gof3/forges/file/project.json#/additionalProperties: additionalProperties 'repositories' not allowed [recovered]
	panic: /var/folders/1s/1zd62h955bv9tg86ncz81k080000gn/T/TestFile1157639037/002/project.json: jsonschema: '' does not validate with file:///Users/cuonglm/gof3/forges/file/project.json#/additionalProperties: additionalProperties 'repositories' not allowed
goroutine 19 [running]:

testing.tRunner.func1.2({0x1006daf00, 0x14000437100})

/Users/cuonglm/sdk/go1.19/src/testing/testing.go:1396 +0x1c8

testing.tRunner.func1()

/Users/cuonglm/sdk/go1.19/src/testing/testing.go:1399 +0x378

panic({0x1006daf00, 0x14000437100})

/Users/cuonglm/sdk/go1.19/src/runtime/panic.go:884 +0x204

lab.forgefriends.org/friendlyforgeformat/gof3/forges/file.getBean[...](0x140001ca580, {0x1005d446d, 0x140003284b0?}, 0x1?)

/Users/cuonglm/gof3/forges/file/file.go:276 +0x160

lab.forgefriends.org/friendlyforgeformat/gof3/forges/file.MaybeGetBean...

/Users/cuonglm/gof3/forges/file/file.go:261

lab.forgefriends.org/friendlyforgeformat/gof3/forges/file.(*File).GetProject(...)

/Users/cuonglm/gof3/forges/file/file.go:233

lab.forgefriends.org/friendlyforgeformat/gof3/forges/file.TestFile(0x0?)

/Users/cuonglm/gof3/forges/file/file_test.go:36 +0x258

testing.tRunner(0x140002951e0, 0x10073d6c8)

/Users/cuonglm/sdk/go1.19/src/testing/testing.go:1446 +0x10c

created by testing.(*T).Run

/Users/cuonglm/sdk/go1.19/src/testing/testing.go:1493 +0x300

FAIL	lab.forgefriends.org/friendlyforgeformat/gof3/forges/file	0.753s

FAIL	lab.forgefriends.org/friendlyforgeformat/gof3/forges/gitea [build failed]

=== RUN   TestNotImplemented

--- PASS: TestNotImplemented (0.00s)

PASS

ok  	lab.forgefriends.org/friendlyforgeformat/gof3/forges/null	(cached)

?   	lab.forgefriends.org/friendlyforgeformat/gof3/forges/tests	[no test files]

FAIL

[earl-warren]

Here is a run in the go 1.19 Debian GNU/Linux docker image to help avoid environmental variance:

$ docker run --rm -ti golang:1.19-bullseye bash
root@7acb76a89733:/go# git clone --recursive --branch wip-go1.19-bug https://lab.forgefriends.org/earl-warren/gof3
Cloning into 'gof3'...
warning: redirecting to https://lab.forgefriends.org/earl-warren/gof3.git/
remote: Enumerating objects: 2088, done.
remote: Counting objects: 100% (731/731), done.
remote: Compressing objects: 100% (350/350), done.
remote: Total 2088 (delta 511), reused 533 (delta 357), pack-reused 1357
Receiving objects: 100% (2088/2088), 557.88 KiB | 113.00 KiB/s, done.
Resolving deltas: 100% (1414/1414), done.
Submodule 'format/schemas' (https://lab.forgefriends.org/friendlyforgeformat/f3-schemas) registered for path 'format/schemas'
Cloning into '/go/gof3/format/schemas'...
warning: redirecting to https://lab.forgefriends.org/friendlyforgeformat/f3-schemas.git/
remote: Enumerating objects: 53, done.        
remote: Counting objects: 100% (6/6), done.        
remote: Compressing objects: 100% (6/6), done.        
remote: Total 53 (delta 2), reused 0 (delta 0), pack-reused 47
Receiving objects: 100% (53/53), 11.84 KiB | 40.00 KiB/s, done.
Resolving deltas: 100% (29/29), done.
Submodule path 'format/schemas': checked out '89e975e7838a791fd4d84d523c91591eaec0ee8a'
root@7acb76a89733:/go# cd gof3
root@7acb76a89733:/go/gof3# go test -v lab.forgefriends.org/friendlyforgeformat/gof3/forges/...
go: downloading github.com/google/go-cmp v0.5.8
go: downloading github.com/stretchr/testify v1.7.0
go: downloading gitea.com/earl-warren/go-sdk/gitea v0.15.1-0.20220821233938-49e74ff9d331
go: downloading github.com/santhosh-tekuri/jsonschema/v5 v5.0.0
go: downloading golang.org/x/exp v0.0.0-20220516143420-24438e51023a
go: downloading github.com/davecgh/go-spew v1.1.0
go: downloading github.com/pmezard/go-difflib v1.0.0
go: downloading gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
go: downloading github.com/go-fed/httpsig v1.1.0
go: downloading github.com/hashicorp/go-version v1.5.0
go: downloading golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e
go: downloading golang.org/x/sys v0.0.0-20211019181941-9d821ace8654
# lab.forgefriends.org/friendlyforgeformat/gof3/forges [lab.forgefriends.org/friendlyforgeformat/gof3/forges.test]
<autogenerated>:1: internal compiler error: panic: runtime error: invalid memory address or nil pointer dereference

[ZekeLu]

@cuonglm Have you checked out the wip-go1.19-bug branch? I can reproduce it on that branch. And git bisect shows that it's fixed by 0c4db1e. So this is a duplicate of #54302.

[cuonglm]

@cuonglm Have you checked out the wip-go1.19-bug branch? I can reproduce it on that branch. And git bisect shows that it's fixed by 0c4db1e. So this is a duplicate of #54302.

yes, basically, I copy-paste command that the author showed.

Anyway, thanks for bisecting.