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os/exec: subprocesses on ios failing frequently with SIGTERM since CL 459176 #57577

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bcmills opened this issue Jan 4, 2023 · 4 comments
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os/exec: subprocesses on ios failing frequently with SIGTERM since CL 459176 #57577

bcmills opened this issue Jan 4, 2023 · 4 comments
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FrozenDueToAge mobile Android, iOS, and x/mobile NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. OS-Darwin release-blocker
Milestone
Go1.20

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@bcmills
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bcmills commented Jan 4, 2023 •
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#!watchflakes
post <- goos == "ios" && (`signal: segmentation fault` || `fork/exec .*: cannot allocate memory`)

The ios-arm64-corellium builder started failing frequently as of CL 459176, which attempted another fix for #56784 in light of #57263.

(CC @golang/ios, @rsc, @cherrymui)
@bcmills bcmills added OS-Darwin NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. mobile Android, iOS, and x/mobile labels Jan 4, 2023
@bcmills bcmills added this to the Go1.20 milestone Jan 4, 2023
@heschi
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heschi commented Jan 4, 2023

Let's track this as a potential release blocker; this might be an iOS problem in which case perhaps we can skip __fork there, or maybe something's wrong with Darwin overall in which case we want to know that.

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Change https://go.dev/cl/460476 mentions this issue: cmd/link, runtime: Apple libc atfork workaround take 3

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Found new dashboard test flakes for:

#!watchflakes
post <- goos == "ios" && (`signal: segmentation fault` || `fork/exec .*: cannot allocate memory`)
2023-01-09 21:50 ios-arm64-corellium go@64519baf runtime/internal/atomic.test [build] (log) 
/tmp/workdir-host-ios-arm64-corellium-ios/go/pkg/tool/ios_arm64/link: running /var/root/bin/clangwrap failed: signal: segmentation fault
2023-01-09 22:50 ios-arm64-corellium go@0202ad0b testing/quick.test [build] (log) 
/tmp/workdir-host-ios-arm64-corellium-ios/go/pkg/tool/ios_arm64/link: running /var/root/bin/clangwrap failed: signal: segmentation fault
2023-01-10 17:59 ios-arm64-corellium go@82f09b75 compress/zlib.test [build] (log) 
/tmp/workdir-host-ios-arm64-corellium-ios/go/pkg/tool/ios_arm64/link: running /var/root/bin/clangwrap failed: signal: segmentation fault

— watchflakes

@gopherbot gopherbot reopened this Jan 16, 2023
@bcmills
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bcmills commented Jan 17, 2023

The above failures predate the fix CL (see #57632).

@bcmills bcmills closed this as completed Jan 17, 2023
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FrozenDueToAge mobile Android, iOS, and x/mobile NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. OS-Darwin release-blocker
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