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runtime: TestCgoPprofCallback hang on linux-arm #54778

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heschi opened this issue Aug 30, 2022 · 4 comments
Open

runtime: TestCgoPprofCallback hang on linux-arm #54778

heschi opened this issue Aug 30, 2022 · 4 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. release-blocker
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@heschi
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heschi commented Aug 30, 2022

2022-08-26T18:09:56-62125c9/linux-arm-aws

The failure is giant so no summary here.

cc @golang/runtime

@heschi heschi added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Aug 30, 2022
@heschi heschi added this to the Backlog milestone Aug 30, 2022
@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Aug 30, 2022
@mknyszek
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mknyszek commented Aug 31, 2022

Looks like reproducing this with GOTRACEBACK=crash (or, do we already do that and it just didn't propagate to the test somehow?) will help; there are a bunch of goroutine running on other thread; stack unavailable goroutines that probably have some necessary information.

@mknyszek mknyszek self-assigned this Aug 31, 2022
@mvdan
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mvdan commented Sep 6, 2022

Perhaps related: the test sometimes fails on linux-amd64-longtest, e.g. https://build.golang.org/log/a86dc70291e4f1c534e8798731dcec91160e5e99:

##### maymorestack=mayMoreStackPreempt
--- FAIL: TestCgoPprofCallback (0.67s)
    testenv.go:468: [/workdir/tmp/go-build1237047364/testprogcgo.exe CgoPprofCallback] exit status: signal: segmentation fault (core dumped)
    crash_cgo_test.go:228: expected "OK\n" got 
FAIL
FAIL	runtime	72.817s

@aclements
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aclements commented Sep 6, 2022

This is not the same as #54885, since that was introduced on 2022-09-02 and the original failure here happened well before that.

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Labels
compiler/runtime Issues related to the Go compiler and/or runtime. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. release-blocker
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