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runtime/pprof: TestBlockProfile failures with "Bad mutex entry" #37844

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bcmills opened this issue Mar 13, 2020 · 5 comments
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runtime/pprof: TestBlockProfile failures with "Bad mutex entry" #37844

bcmills opened this issue Mar 13, 2020 · 5 comments
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bcmills commented Mar 13, 2020

--- FAIL: TestBlockProfile (0.18s)
    --- FAIL: TestBlockProfile/debug=1 (0.00s)
        pprof_test.go:707: Bad mutex entry, expect:
…            
    --- FAIL: TestBlockProfile/proto (0.00s)
 …
        pprof_test.go:728: No matching stack entry for mutex, want [sync.(*Mutex).Lock runtime/pprof.blockMutex runtime/pprof.TestBlockProfile]
FAIL
FAIL	runtime/pprof	5.161s

CC @hyangah @pjweinbgo

2020-03-12T23:17:02-5d70cb0/linux-ppc64-buildlet
2020-03-12T20:00:02-e221a75/linux-ppc64-buildlet
2020-03-02T16:24:47-d7c073e/darwin-arm64-mn4m2zdaios
2020-01-19T15:28:32-02816a2/darwin-arm64-mn4m2zdaios
2019-11-18T14:40:07-afac2c0/darwin-arm64-mn4m2zdaios

@bcmills bcmills added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Mar 13, 2020
@bcmills bcmills added this to the Backlog milestone Mar 13, 2020
@bcmills
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bcmills commented Mar 13, 2020

See also #6999 (possibly the same root cause).

Looks like the test is somehow missing a profile entry.

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bcmills commented Jun 8, 2020

@odeke-em
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bcmills commented Feb 2, 2021

@gopherbot
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Change https://go.dev/cl/384534 mentions this issue: runtime/pprof: skip TestBlockProfile

@bcmills bcmills self-assigned this Feb 10, 2022
@bcmills bcmills modified the milestones: Backlog, Go1.18 Feb 10, 2022
@rsc rsc unassigned bcmills Jun 23, 2022
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