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net/http: apparent deadlock in CloseIdleConnections via net.(*netFD).Close #48667

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bcmills opened this issue Sep 28, 2021 · 1 comment
Closed

net/http: apparent deadlock in CloseIdleConnections via net.(*netFD).Close #48667

bcmills opened this issue Sep 28, 2021 · 1 comment
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FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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bcmills commented Sep 28, 2021 

goroutine 3880 [semacquire, 2 minutes]:
runtime.gopark(0x60c9c518c0, 0x40001e45d0, 0x20, 0xf3, 0x60c9590284)
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/runtime/proc.go:366 +0xe8 fp=0x4000307b50 sp=0x4000307b30 pc=0x60c957aa78
runtime.goparkunlock(...)
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/runtime/proc.go:372
runtime.semacquire1(0x4000332428, 0xc, 0x1, 0x0)
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/runtime/sema.go:144 +0x214 fp=0x4000307bb0 sp=0x4000307b50 pc=0x60c958c0f4
internal/poll.runtime_Semacquire(0x731a529a28)
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/runtime/sema.go:61 +0x2c fp=0x4000307be0 sp=0x4000307bb0 pc=0x60c95a604c
internal/poll.(*FD).Close(0x4000332400)
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/internal/poll/fd_unix.go:116 +0x68 fp=0x4000307c10 sp=0x4000307be0 pc=0x60c95d3d28
net.(*netFD).Close(0x4000332400)
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/net/fd_posix.go:38 +0x44 fp=0x4000307c40 sp=0x4000307c10 pc=0x60c96d5f94
net.(*conn).Close(0x40001ba4b8)
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/net/net.go:207 +0x34 fp=0x4000307c80 sp=0x4000307c40 pc=0x60c96e1b04
net/http.(*persistConn).closeLocked(0x40001e66c0, {0x60c9973680, 0x4000038c40})
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/net/http/transport.go:2708 +0x10c fp=0x4000307d10 sp=0x4000307c80 pc=0x60c97c480c
net/http.(*persistConn).close(0x4000309de8, {0x60c9973680, 0x4000038c40})
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/net/http/transport.go:2693 +0xdc fp=0x4000307d60 sp=0x4000307d10 pc=0x60c97c464c
net/http.(*Transport).CloseIdleConnections(0x40001a6dc0)
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/net/http/transport.go:770 +0x1fc fp=0x4000307e20 sp=0x4000307d60 pc=0x60c97b9ebc
net/http_test.(*clientServerTest).close(0x40003b1700)
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/net/http/clientserver_test.go:45 +0x2c fp=0x4000307e40 sp=0x4000307e20 pc=0x60c980fe8c
net/http_test.TestTransportRequestWriteRoundTrip.func3.3()
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/net/http/transport_test.go:5851 +0x2c fp=0x4000307e60 sp=0x4000307e40 pc=0x60c98aef5c
net/http_test.TestTransportRequestWriteRoundTrip.func3(0x40005ff520)
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/net/http/transport_test.go:5875 +0x3d0 fp=0x4000307f60 sp=0x4000307e60 pc=0x60c98aee70
testing.tRunner(0x40005ff520, 0x400025dc10)
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/testing/testing.go:1389 +0x110 fp=0x4000307fb0 sp=0x4000307f60 pc=0x60c96283c0
testing.(*T).Run.func1()
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/testing/testing.go:1436 +0x30 fp=0x4000307fd0 sp=0x4000307fb0 pc=0x60c9629140
runtime.goexit()
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/runtime/asm_arm64.s:1259 +0x4 fp=0x4000307fd0 sp=0x4000307fd0 pc=0x60c95a9f14
created by testing.(*T).Run
	/data/data/com.termux/files/home/tmpdir/workdir-host-android-arm64-corellium-android/go/src/testing/testing.go:1436 +0x300

greplogs --dashboard -md -l -e ^net/http_test\\.\\\(\\\*clientServerTest\\\)\\.close --since=2021-01-01

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CC @neild @bradfitz
@bcmills bcmills added this to the Backlog milestone Sep 28, 2021
@bcmills bcmills added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Sep 28, 2021
@bcmills
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bcmills commented Oct 12, 2021

This looks like it may be a runtime bug: #48925.

@bcmills bcmills closed this as completed Oct 12, 2021
@golang golang locked and limited conversation to collaborators Oct 12, 2022
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