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runtime: hangs in TestGdbBacktrace on linux #37405

bcmills opened this issue Feb 24, 2020 · 3 comments

runtime: hangs in TestGdbBacktrace on linux #37405

bcmills opened this issue Feb 24, 2020 · 3 comments


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@bcmills bcmills commented Feb 24, 2020


goroutine 23401 [syscall, 11 minutes]:
syscall.Syscall6(0x1475, 0x1, 0x3b6f, 0xc000cad968, 0x1000004, 0x0, 0x0, 0x120153878, 0xc000cad960, 0x120080418)
	/tmp/workdir-host-linux-mipsle-mengzhuo/go/src/syscall/asm_linux_mips64x.s:40 +0x10 fp=0xc000cad910 sp=0xc000cad908 pc=0x1200cc678
os.(*Process).blockUntilWaitable(0xc00001ab70, 0x0, 0x1200103ec, 0x0)
	/tmp/workdir-host-linux-mipsle-mengzhuo/go/src/os/wait_waitid.go:31 +0x88 fp=0xc000cad9f8 sp=0xc000cad910 pc=0x1200e49e8
os.(*Process).wait(0xc00001ab70, 0x1202d17d0, 0x1202d17d8, 0x1202d17c8)
	/tmp/workdir-host-linux-mipsle-mengzhuo/go/src/os/exec_unix.go:22 +0x4c fp=0xc000cada68 sp=0xc000cad9f8 pc=0x1200df43c
os/exec.(*Cmd).Wait(0xc000ad8f20, 0x0, 0x0)
	/tmp/workdir-host-linux-mipsle-mengzhuo/go/src/os/exec/exec.go:502 +0x68 fp=0xc000cadad8 sp=0xc000cada68 pc=0x120153e18
os/exec.(*Cmd).Run(0xc000ad8f20, 0xc00009aff0, 0xc000ad8f20)
	/tmp/workdir-host-linux-mipsle-mengzhuo/go/src/os/exec/exec.go:340 +0x74 fp=0xc000cadaf8 sp=0xc000cadad8 pc=0x12015340c
os/exec.(*Cmd).CombinedOutput(0xc000ad8f20, 0x3, 0xc000cade78, 0xf, 0xf, 0xc000ad8f20)
	/tmp/workdir-host-linux-mipsle-mengzhuo/go/src/os/exec/exec.go:562 +0xbc fp=0xc000cadb20 sp=0xc000cadaf8 pc=0x1201541dc
	/tmp/workdir-host-linux-mipsle-mengzhuo/go/src/runtime/runtime-gdb_test.go:388 +0x6c4 fp=0xc000cadf80 sp=0xc000cadb20 pc=0x120202e64
testing.tRunner(0xc00022a5a0, 0x1202d2e00)
	/tmp/workdir-host-linux-mipsle-mengzhuo/go/src/testing/testing.go:992 +0xf8 fp=0xc000cadfc8 sp=0xc000cadf80 pc=0x12010a978
	/tmp/workdir-host-linux-mipsle-mengzhuo/go/src/runtime/asm_mips64x.s:646 +0x4 fp=0xc000cadfc8 sp=0xc000cadfc8 pc=0x120084354
created by testing.(*T).Run
	/tmp/workdir-host-linux-mipsle-mengzhuo/go/src/testing/testing.go:1043 +0x378

CC @dr2chase @aclements @mengzhuo

@bcmills bcmills added this to the Backlog milestone Feb 24, 2020
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@mengzhuo mengzhuo commented Feb 24, 2020

It shows that runtime test failed due to timeout.

FAIL	runtime	720.011s

Maybe we should dump ps ef and system load after bots failed?

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@gopherbot gopherbot commented Apr 14, 2020

Change mentions this issue: runtime: only shrink stack while preempting

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@bcmills bcmills commented Jan 25, 2021

This turns out not to be specific to the mips64le builder. See also #39228 (occasional failures instead of hangs).


@bcmills bcmills changed the title runtime: hang in TestGdbBacktrace on linux-mips64le-mengzhuo builder runtime: hangs in TestGdbBacktrace on linux Jan 25, 2021
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