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runtime: proc_test timed out on TestPreemptionAfterSyscall on windows/386 #34901

toothrot opened this issue Oct 14, 2019 · 4 comments


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@toothrot toothrot commented Oct 14, 2019

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

$ go version
go version go1.13.1 windows/386 # 

Does this issue reproduce with the latest release?

This failure is specifically on release-branch.go1.13, from this cl:

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

go env Output
$ go env
"CommonProgramFiles=C:\\Program Files\\Common Files"
"CommonProgramFiles(x86)=C:\\Program Files (x86)\\Common Files"
"CommonProgramW6432=C:\\Program Files\\Common Files"
"PATH=C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\ProgramData\\GooGet;C:\\Program Files\\Google\\Compute Engine\\metadata_scripts;C:\\Program Files (x86)\\Google\\Cloud SDK\\google-cloud-sdk\\bin;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files\\Google\\Compute Engine\\sysprep;C:\\godep\\gcc32\\bin"
"PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 63 Stepping 0, GenuineIntel"
"ProgramFiles=C:\\Program Files"
"ProgramFiles(x86)=C:\\Program Files (x86)"
"ProgramW6432=C:\\Program Files"
"PSModulePath=C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\Modules\\;C:\\Program Files (x86)\\Google\\Cloud SDK\\google-cloud-sdk\\platform\\PowerShell"

What did you do?

Ran trybots for

The CL updates prove.go to correct an issue with negative indexes on slices.

What did you expect to see?


What did you see instead?

The trybot run failed on a test for goroutine premption in tight loops around system calls. I don't feel like this test is related to the change.

A subsequent trybot run passed.

##### GOMAXPROCS=2 runtime -cpu=1,2,4 -quick
--- FAIL: TestPreemptionAfterSyscall (3.23s)
    --- FAIL: TestPreemptionAfterSyscall/1ms (3.10s)
        proc_test.go:967: timeout exceeded: 3.0976562s (3s)
FAIL	runtime	58.635s
2019/10/14 17:34:34 Failed: exit status 1
2019/10/14 17:34:34 FAILED

Full Trybot log:

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Contributor Author

@toothrot toothrot commented Oct 14, 2019

Test was implemented as part of #10958

/cc @avagin

@toothrot toothrot added this to the Backlog milestone Oct 14, 2019
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@bcmills bcmills commented Nov 8, 2019

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@ianlancetaylor ianlancetaylor commented Nov 14, 2019

We haven't seen any failures in the last five days, but we used to see multiple failures per day. I'm not sure what fixed this, but it is almost certainly fixed.

@golang golang locked and limited conversation to collaborators Nov 13, 2020
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4 participants