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runtime: TestNetpollDeadlock failures #55206

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gopherbot opened this issue Sep 20, 2022 · 5 comments
Open

runtime: TestNetpollDeadlock failures #55206

gopherbot opened this issue Sep 20, 2022 · 5 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.
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@gopherbot
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gopherbot commented Sep 20, 2022

#!watchflakes
post <- pkg == "runtime" && test == "TestNetpollDeadlock"

Bug automatically created to track these flakes.

— watchflakes

@gopherbot gopherbot added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Sep 20, 2022
@gopherbot
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gopherbot commented Sep 20, 2022

Found new matching flaky dashboard failures for:

#!watchflakes
post <- pkg == "runtime" && test == "TestNetpollDeadlock"
2022-08-18 17:26 freebsd-amd64-race go@07cf24bd runtime.TestNetpollDeadlock (log)
--- FAIL: TestNetpollDeadlock (60.04s)
    testenv.go:468: [/tmp/workdir/tmp/go-build2829729280/testprognet.exe NetpollDeadlock] exit status: exit status 2
    crash_test.go:463: output does not start with "done\n":
        dialing
        SIGQUIT: quit
        PC=0x46403e m=0 sigcode=65537

        rax    0x4
        rbx    0x0
        rcx    0x18
        rdx    0x0
        rdi    0x5d7650
        rsi    0xf
        rbp    0x7fffffffe600
        rsp    0x7fffffffe5a8
        r8     0x0
        r9     0x0
        r10    0x1
        r11    0x10
        r12    0x43d200
        r13    0x1
        r14    0x5d6f60
        r15    0x1
        rip    0x46403e
        rflags 0x247
        cs     0x43
        fs     0x13
        gs     0x1b

watchflakes

@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Sep 20, 2022
@rsc
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rsc commented Sep 20, 2022

Stopped.

@rsc rsc closed this as completed Sep 20, 2022
@gopherbot gopherbot changed the title runtime: flaky TestNetpollDeadlock runtime: TestNetpollDeadlock failures Sep 20, 2022
@gopherbot gopherbot reopened this Nov 4, 2022
@gopherbot
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gopherbot commented Nov 4, 2022

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "runtime" && test == "TestNetpollDeadlock"
2022-10-31 21:40 linux-amd64-longtest go@9ce27fea runtime.TestNetpollDeadlock (log)
--- FAIL: TestNetpollDeadlock (2.10s)
    crash_test.go:59: /workdir/tmp/go-build1753537901/testprognet.exe NetpollDeadlock failed to start: exec: WaitDelay expired before I/O complete

watchflakes

@mknyszek
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mknyszek commented Nov 9, 2022

Gut reaction is that this detected a timeout but perhaps not a real deadlock. Let's wait for more failures.

@mknyszek mknyszek added this to the Go1.20 milestone Nov 9, 2022
@mknyszek
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mknyszek commented Nov 23, 2022

Checking manually, the latest instance of this is

2022-11-01T20:46:55-50c5919/solaris-amd64-oraclerel

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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.
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