sync: TestPoolChain occasionally fails on linux-arm64 #32265
Labels
FrozenDueToAge
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
What version of Go are you using (
go version
)?Does this issue reproduce with the latest release?
Yes
What operating system and processor architecture are you using (
go env
)?go env
OutputWhat did you do?
Run all.bash
What did you expect to see?
ALL TESTS PASSED
What did you see instead?
--- FAIL: TestPoolChain (0.00s)
pool_test.go:242: popHead never succeeded
FAIL
FAIL sync 1.312s
The test was first added in https://go-review.googlesource.com/c/go/+/166957, and a comment said that "In theory it's possible in a valid schedule for popHead to never succeed, but in practice it almost always succeeds, so this is unlikely to flake". But this test occasionally fails on two of our machines. On one of these two machines, the frequency of this error is not small, it occurred six times in our last 11 runs.
\cc @aclements
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