internal/types/errors: TestErrorCodeExamples failures

[gopherbot]

#!watchflakes
post <- pkg == "internal/types/errors" && test == "TestErrorCodeExamples"

Issue created automatically to collect these failures.

Example (log):

panic: test timed out after 30m0s
running tests:
	TestErrorCodeExamples (30m0s)
	TestErrorCodeExamples/UnexportedName (29m59s)

runtime.gopark(0x4000166000?, 0x0?, 0xb8?, 0x5c?, 0x1bc9c?)
	/var/gobuilder/buildlet/go/src/runtime/proc.go:381 +0xe0 fp=0x4000205c30 sp=0x4000205c10 pc=0x457b0
runtime.chanrecv(0x400015c000, 0x4000205d3f, 0x1)
	/var/gobuilder/buildlet/go/src/runtime/chan.go:583 +0x468 fp=0x4000205cc0 sp=0x4000205c30 pc=0x153b8
runtime.chanrecv1(0x401660?, 0x21a380?)
	/var/gobuilder/buildlet/go/src/runtime/chan.go:442 +0x14 fp=0x4000205cf0 sp=0x4000205cc0 pc=0x14f44
testing.(*T).Run(0x4000003a00, {0x4000015600?, 0x40000c5de8?}, 0x4000150000)
	/var/gobuilder/buildlet/go/src/testing/testing.go:1629 +0x384 fp=0x4000205db0 sp=0x4000205cf0 pc=0xd37c4
internal/types/errors_test.TestErrorCodeExamples.func1({0x4000015600, 0xe}, 0x4a, 0x40000d0d70)
	/var/gobuilder/buildlet/go/src/internal/types/errors/codes_test.go:26 +0xbc fp=0x4000205df0 sp=0x4000205db0 pc=0x1f07cc
internal/types/errors_test.walkCodes(0x4000003a00, 0x4000205f48)
	/var/gobuilder/buildlet/go/src/internal/types/errors/codes_test.go:81 +0x49c fp=0x4000205f30 sp=0x4000205df0 pc=0x1f0f7c
internal/types/errors_test.TestErrorCodeExamples(0x4000003a00)
	/var/gobuilder/buildlet/go/src/internal/types/errors/codes_test.go:25 +0x4c fp=0x4000205f60 sp=0x4000205f30 pc=0x1f06ec
testing.tRunner(0x4000003a00, 0x278428)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "internal/types/errors" && test == "TestErrorCodeExamples"

2022-12-02 16:30 netbsd-arm64-bsiegert go@5a4e440f internal/types/errors.TestErrorCodeExamples (log)

panic: test timed out after 30m0s
running tests:
	TestErrorCodeExamples (30m0s)
	TestErrorCodeExamples/UnexportedName (29m59s)

runtime.gopark(0x4000166000?, 0x0?, 0xb8?, 0x5c?, 0x1bc9c?)
	/var/gobuilder/buildlet/go/src/runtime/proc.go:381 +0xe0 fp=0x4000205c30 sp=0x4000205c10 pc=0x457b0
runtime.chanrecv(0x400015c000, 0x4000205d3f, 0x1)
	/var/gobuilder/buildlet/go/src/runtime/chan.go:583 +0x468 fp=0x4000205cc0 sp=0x4000205c30 pc=0x153b8
runtime.chanrecv1(0x401660?, 0x21a380?)
	/var/gobuilder/buildlet/go/src/runtime/chan.go:442 +0x14 fp=0x4000205cf0 sp=0x4000205cc0 pc=0x14f44
testing.(*T).Run(0x4000003a00, {0x4000015600?, 0x40000c5de8?}, 0x4000150000)
	/var/gobuilder/buildlet/go/src/testing/testing.go:1629 +0x384 fp=0x4000205db0 sp=0x4000205cf0 pc=0xd37c4
internal/types/errors_test.TestErrorCodeExamples.func1({0x4000015600, 0xe}, 0x4a, 0x40000d0d70)
	/var/gobuilder/buildlet/go/src/internal/types/errors/codes_test.go:26 +0xbc fp=0x4000205df0 sp=0x4000205db0 pc=0x1f07cc
internal/types/errors_test.walkCodes(0x4000003a00, 0x4000205f48)
	/var/gobuilder/buildlet/go/src/internal/types/errors/codes_test.go:81 +0x49c fp=0x4000205f30 sp=0x4000205df0 pc=0x1f0f7c
internal/types/errors_test.TestErrorCodeExamples(0x4000003a00)
	/var/gobuilder/buildlet/go/src/internal/types/errors/codes_test.go:25 +0x4c fp=0x4000205f60 sp=0x4000205f30 pc=0x1f06ec
testing.tRunner(0x4000003a00, 0x278428)

— watchflakes

[bcmills]

Duplicate of #56967

[bcmills]

Hmm, nope. That failure mode should have been fixed in commit 6a70292, but the above failure was just after that.

[bcmills]

@bsiegert, I feel like I've seen a couple of recent watchflakes issues for the netbsd-arm64-bsiegert builder — at least this one and

2022-12-16 03:40 netbsd-arm64-bsiegert go@24ac659a runtime.TestCgoExecSignalMask (log)

--- FAIL: TestCgoExecSignalMask (0.18s)
    exec.go:146: test timed out while running command: /var/gobuilder/buildlet/tmp/go-build2870843524/testprogcgo.exe CgoExecSignalMask
    crash_test.go:58: /var/gobuilder/buildlet/tmp/go-build2870843524/testprogcgo.exe CgoExecSignalMask: exit status 2
    crash_cgo_test.go:140: expected "OK\n", got SIGQUIT: quit
        PC=0x20018aefc m=8 sigcode=0

        r0      0x1
        r1      0xef4
        r2      0x4000217dbc
        r3      0x10020
...
        r24     0xffffd2779000
        r25     0xfffffb85b000
        r26     0x4000217e48
        r27     0x1
        r28     0x4000082b60
        r29     0x4000217d48
        lr      0x20018aee0
        sp      0x4000217d50
        pc      0x20018aefc
        fault   0x24f2

Was something going on with the builder?

[bsiegert]

Not that I know of. The arm (32-bit) builder had an issue around that time but the arm64 ones had none.