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runtime: timeout in TestNoShrinkStackWhileParking on openbsd #51482

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prattmic opened this issue Mar 4, 2022 · 5 comments
Open

runtime: timeout in TestNoShrinkStackWhileParking on openbsd #51482

prattmic opened this issue Mar 4, 2022 · 5 comments
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@prattmic
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@prattmic prattmic commented Mar 4, 2022

greplogs --dashboard -md -l -e 'TestNoShrinkStackWhileParking'

2022-01-06T19:21:12-ed84a83/openbsd-386-70-n1
2021-11-27T23:25:39-7e1260f/openbsd-amd64-70-n1
2021-11-08T21:45:43-cc49178/openbsd-386-68

cc @golang/runtime @bcmills

@prattmic prattmic added this to the Go1.19 milestone Mar 4, 2022
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@prattmic prattmic commented Mar 4, 2022

See also #49382 on netbsd

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@prattmic prattmic commented Mar 4, 2022

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@bcmills bcmills commented Mar 4, 2022

It's interesting that the recv goroutine in all of those dumps is parked in time.Sleep(10 * time.Microsecond) rather than the channel-receive that follows it.

@cagedmantis cagedmantis added the NeedsInvestigation label Mar 5, 2022
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@bcmills bcmills commented Mar 16, 2022

One more on the builders, still OpenBSD. (Marking as release-blocker, but since OpenBSD is not a first-class port it would be fine to add a skip for that GOOS and move this to the Backlog.)

greplogs --dashboard -md -l -e '(?ms)(?:SIGQUIT|test timed out).*^runtime_test\.TestNoShrinkStackWhileParking' --since=2022-03-04

2022-03-16T15:20:22-1a2f726/openbsd-amd64-68

@dmitshur dmitshur self-assigned this Apr 13, 2022
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@gopherbot gopherbot commented Apr 20, 2022

Change https://go.dev/cl/401335 mentions this issue: runtime: skip TestNoShrinkStackWhileParking on openbsd

@dmitshur dmitshur removed their assignment Apr 20, 2022
@dmitshur dmitshur removed this from the Go1.19 milestone Apr 22, 2022
@dmitshur dmitshur added this to the Backlog milestone Apr 22, 2022
gopherbot pushed a commit that referenced this issue Apr 22, 2022
The test has proven to be flaky on OpenBSD since March, and there
hasn't been progress on resolving this finding. Mark the test as
flaky to so that this problem doesn't block the Go 1.19 release.

Updates #51482.

Change-Id: I92ad7498c20cfa94565880363bec85f9a4f3e916
Reviewed-on: https://go-review.googlesource.com/c/go/+/401335
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
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