net/http: apparent deadlock in TestTransportDecrementConnWhenIdleConnRemoved #62357

bcmills · 2023-08-29T20:42:57Z

#!watchflakes
post <- pkg == "net/http" &&
	((log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`) ||
		(test ~ `TestTransportDecrementConnWhenIdleConnRemoved` && status == "ABORT"))

The goroutine dump from the logs is unfortunately too large to paste in a GitHub issue. 😅

(attn @neild; CC @golang/release)

The text was updated successfully, but these errors were encountered:

mknyszek · 2023-08-30T15:13:26Z

Copying over context from #62363.

I managed to reproduce this on my local linux/amd64 machine on tip, and without GOEXPERIMENT=boringcrypto:

bin/go test -c net/http
stress2 ./http.test -test.run="TestTransportDecrementConnWhenIdleConnRemoved" -test.count=1 -test.timeout=3m

It fails pretty fast; basically as soon as the timeout is reached. Might be able to get a faster turnaround time by lowering the timeout.

EDIT: Switched to stress2 since I couldn't find stress anymore. stress2 is obtainable via go get install github.com/aclements/go-misc/stress2.

gopherbot · 2023-09-08T17:12:22Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`

2023-09-05 16:41 freebsd-amd64-13_0 go@a40404da net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved (3m0s)
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (3m0s)

goroutine 16372 [running]:
panic({0x842fc0?, 0xc000714050?})
	/tmp/workdir/go/src/runtime/panic.go:774 +0x158 fp=0xc00083af10 sp=0xc00083ae60 pc=0x437e58
testing.(*M).startAlarm.func1()
	/tmp/workdir/go/src/testing/testing.go:2259 +0x385 fp=0xc00083afe0 sp=0xc00083af10 pc=0x5009a5
runtime.goexit({})
	/tmp/workdir/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc00083afe8 sp=0xc00083afe0 pc=0x46d4c1
created by time.goFunc
	/tmp/workdir/go/src/time/sleep.go:177 +0x2d

2023-09-07 01:59 darwin-amd64-11_0 go@3466e573 net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved (2m59s)
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (2m58s)

goroutine 15802 [running]:
panic({0x8bffce0?, 0xc0010d5390?})
	/tmp/buildlet/go/src/runtime/panic.go:774 +0x158 fp=0xc000bd6f10 sp=0xc000bd6e60 pc=0x8723e38
testing.(*M).startAlarm.func1()
	/tmp/buildlet/go/src/testing/testing.go:2259 +0x385 fp=0xc000bd6fe0 sp=0xc000bd6f10 pc=0x87ecaa5
runtime.goexit({})
	/tmp/buildlet/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000bd6fe8 sp=0xc000bd6fe0 pc=0x875a721
created by time.goFunc
	/tmp/buildlet/go/src/time/sleep.go:177 +0x2d

— watchflakes

gopherbot · 2023-09-11T21:12:54Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`

2023-09-11 20:29 linux-amd64-bookworm go@f72693d3 net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved (3m0s)
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (3m0s)

goroutine 15734 [running]:
panic({0x845c20?, 0xc00033c600?})
	/workdir/go/src/runtime/panic.go:774 +0x158 fp=0xc00091df10 sp=0xc00091de60 pc=0x438cb8
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2259 +0x385 fp=0xc00091dfe0 sp=0xc00091df10 pc=0x509765
runtime.goexit({})
	/workdir/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc00091dfe8 sp=0xc00091dfe0 pc=0x46ecc1
created by time.goFunc
	/workdir/go/src/time/sleep.go:177 +0x2d

— watchflakes

gopherbot · 2023-10-25T15:05:03Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`

2023-10-24 18:12 darwin-amd64-race go@9162c4be net/http (log)

panic: test timed out after 6m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved (5m55s)
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (5m52s)

goroutine 16096 [running]:
panic({0x61b12e0?, 0xc001b10040?})
	/tmp/buildlet/go/src/runtime/panic.go:772 +0x158 fp=0xc001189f18 sp=0xc001189e68 pc=0x5a12358
testing.(*M).startAlarm.func1()
	/tmp/buildlet/go/src/testing/testing.go:2257 +0x214 fp=0xc001189fe0 sp=0xc001189f18 pc=0x5b39f74
runtime.goexit({})
	/tmp/buildlet/go/src/runtime/asm_amd64.s:1671 +0x1 fp=0xc001189fe8 sp=0xc001189fe0 pc=0x5a4ace1
created by time.goFunc
	/tmp/buildlet/go/src/time/sleep.go:177 +0x45

2023-10-24 20:26 linux-s390x-ibm go@9ab51216 net/http (log)

panic: test timed out after 15m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved (14m57s)
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (14m57s)

goroutine 15457 [running]:
panic({0x53a6a0, 0xc0001ac0e0})
	/data/golang/workdir/go/src/runtime/panic.go:772 +0x156 fp=0xc0011aaef8 sp=0xc0011aae50 pc=0x56d26
testing.(*M).startAlarm.func1()
	/data/golang/workdir/go/src/testing/testing.go:2257 +0x464 fp=0xc0011aafd8 sp=0xc0011aaef8 pc=0x157ef4
runtime.goexit({})
	/data/golang/workdir/go/src/runtime/asm_s390x.s:774 +0x2 fp=0xc0011aafd8 sp=0xc0011aafd8 pc=0x993b2
created by time.goFunc
	/data/golang/workdir/go/src/time/sleep.go:177 +0x42

— watchflakes

gopherbot · 2023-11-14T18:39:22Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`

2023-11-14 17:15 linux-amd64-buster go@e7d582b5 net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved (3m0s)
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (2m59s)

goroutine 15863 [running]:
panic({0x86a9a0?, 0xc0008d0050?})
	/workdir/go/src/runtime/panic.go:772 +0x158 fp=0xc0013c5f10 sp=0xc0013c5e60 pc=0x4392f8
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2351 +0x374 fp=0xc0013c5fe0 sp=0xc0013c5f10 pc=0x50bbb4
runtime.goexit({})
	/workdir/go/src/runtime/asm_amd64.s:1694 +0x1 fp=0xc0013c5fe8 sp=0xc0013c5fe0 pc=0x46f7e1
created by time.goFunc
	/workdir/go/src/time/sleep.go:177 +0x2d

— watchflakes

gopherbot · 2023-12-05T00:10:37Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`

2023-12-04 19:27 windows-amd64-race go@818de275 net/http (log)

panic: test timed out after 6m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (5m54s)

goroutine 16323 gp=0xc000507d40 m=8 mp=0xc000266708 [running]:
panic({0x140770460?, 0xc0017ec160?})
	C:/workdir/go/src/runtime/panic.go:779 +0x158 fp=0xc000bfdf18 sp=0xc000bfde68 pc=0x14003cf18
testing.(*M).startAlarm.func1()
	C:/workdir/go/src/testing/testing.go:2366 +0x265 fp=0xc000bfdfe0 sp=0xc000bfdf18 pc=0x1401889e5
runtime.goexit({})
...
net/http.(*Client).Get(0xc001902600, {0xc0008226d8, 0x17})
	C:/workdir/go/src/net/http/client.go:487 +0x9a fp=0xc00101be80 sp=0xc00101be08 pc=0x14045647a
net/http_test.testTransportDecrementConnWhenIdleConnRemoved.func2()
	C:/workdir/go/src/net/http/transport_test.go:6526 +0x73 fp=0xc00101bf78 sp=0xc00101be80 pc=0x1406b73f3
net/http_test.testTransportDecrementConnWhenIdleConnRemoved.func3()
	C:/workdir/go/src/net/http/transport_test.go:6543 +0x82 fp=0xc00101bfe0 sp=0xc00101bf78 pc=0x1406b72e2
runtime.goexit({})
	C:/workdir/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00101bfe8 sp=0xc00101bfe0 pc=0x140078981
created by net/http_test.testTransportDecrementConnWhenIdleConnRemoved in goroutine 3319
	C:/workdir/go/src/net/http/transport_test.go:6541 +0x33a

— watchflakes

gopherbot · 2023-12-09T22:16:23Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`

2023-12-09 21:47 linux-amd64-alpine go@ca804118 net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (3m0s)

goroutine 16099 gp=0xc000656fc0 m=17 mp=0xc000600808 [running]:
panic({0x877180?, 0xc0010c6450?})
	/workdir/go/src/runtime/panic.go:779 +0x158 fp=0xc001c87f10 sp=0xc001c87e60 pc=0x43b018
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2366 +0x385 fp=0xc001c87fe0 sp=0xc001c87f10 pc=0x513be5
runtime.goexit({})
...
net/http.(*http2Framer).ReadFrame(0xc0006d80e0)
	/workdir/go/src/net/http/h2_bundle.go:1902 +0x85 fp=0xc0007e2ef8 sp=0xc0007e2e50 pc=0x6c5ea5
net/http.(*http2serverConn).readFrames(0xc000a0e000)
	/workdir/go/src/net/http/h2_bundle.go:4603 +0x87 fp=0xc0007e2fc8 sp=0xc0007e2ef8 pc=0x6cfda7
net/http.(*http2serverConn).serve.gowrap7()
	/workdir/go/src/net/http/h2_bundle.go:4715 +0x25 fp=0xc0007e2fe0 sp=0xc0007e2fc8 pc=0x6d13e5
runtime.goexit({})
	/workdir/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0007e2fe8 sp=0xc0007e2fe0 pc=0x4759c1
created by net/http.(*http2serverConn).serve in goroutine 2813
	/workdir/go/src/net/http/h2_bundle.go:4715 +0x56a

— watchflakes

gopherbot · 2023-12-11T18:12:34Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`

2023-12-11 17:15 linux-amd64-nocgo go@052d4029 net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (2m59s)

goroutine 15327 gp=0xc000889880 m=13 mp=0xc000206008 [running]:
panic({0x871aa0?, 0xc003818d40?})
	/workdir/go/src/runtime/panic.go:779 +0x158 fp=0xc00223bf10 sp=0xc00223be60 pc=0x4395b8
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2366 +0x385 fp=0xc00223bfe0 sp=0xc00223bf10 pc=0x511e45
runtime.goexit({})
...
net/http.(*http2Framer).ReadFrame(0xc0008a27e0)
	/workdir/go/src/net/http/h2_bundle.go:1902 +0x85 fp=0xc0009f3ef8 sp=0xc0009f3e50 pc=0x6c10a5
net/http.(*http2serverConn).readFrames(0xc000b2f380)
	/workdir/go/src/net/http/h2_bundle.go:4603 +0x87 fp=0xc0009f3fc8 sp=0xc0009f3ef8 pc=0x6cafa7
net/http.(*http2serverConn).serve.gowrap7()
	/workdir/go/src/net/http/h2_bundle.go:4715 +0x25 fp=0xc0009f3fe0 sp=0xc0009f3fc8 pc=0x6cc5e5
runtime.goexit({})
	/workdir/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0009f3fe8 sp=0xc0009f3fe0 pc=0x473c81
created by net/http.(*http2serverConn).serve in goroutine 3211
	/workdir/go/src/net/http/h2_bundle.go:4715 +0x56a

— watchflakes

gopherbot · 2023-12-12T16:50:42Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`

2023-12-11 23:29 windows-amd64-2016 go@b18b0588 net/http (log)

panic: test timed out after 6m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (5m59s)

goroutine 15990 gp=0xc000455340 m=12 mp=0xc0000c2008 [running]:
panic({0xdfc1a0?, 0xc000b3e030?})
	C:/workdir/go/src/runtime/panic.go:779 +0x158 fp=0xc000265f10 sp=0xc000265e60 pc=0x9bb918
testing.(*M).startAlarm.func1()
	C:/workdir/go/src/testing/testing.go:2366 +0x385 fp=0xc000265fe0 sp=0xc000265f10 pc=0xa988c5
runtime.goexit({})
...
net/http.(*http2clientConnReadLoop).run(0xc000a13fa8)
	C:/workdir/go/src/net/http/h2_bundle.go:9303 +0x12c fp=0xc000a13f60 sp=0xc000a13df0 pc=0xc6b48c
net/http.(*http2ClientConn).readLoop(0xc00026c180)
	C:/workdir/go/src/net/http/h2_bundle.go:9198 +0x65 fp=0xc000a13fc8 sp=0xc000a13f60 pc=0xc6aa05
net/http.(*http2Transport).newClientConn.gowrap1()
	C:/workdir/go/src/net/http/h2_bundle.go:7848 +0x25 fp=0xc000a13fe0 sp=0xc000a13fc8 pc=0xc64125
runtime.goexit({})
	C:/workdir/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000a13fe8 sp=0xc000a13fe0 pc=0x9f5501
created by net/http.(*http2Transport).newClientConn in goroutine 2621
	C:/workdir/go/src/net/http/h2_bundle.go:7848 +0xca6

— watchflakes

gopherbot · 2023-12-13T01:33:43Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`

2023-12-13 00:22 solaris-amd64-oraclerel go@400e24a8 net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (2m59s)

goroutine 16229 gp=0xc000c31dc0 m=29 mp=0xc00055e408 [running]:
panic({0x871d40?, 0xc004c26f20?})
	/tmp/workdir-host-solaris-oracle-amd64-oraclerel/go/src/runtime/panic.go:779 +0x158 fp=0xc001c57f10 sp=0xc001c57e60 pc=0x43a978
testing.(*M).startAlarm.func1()
	/tmp/workdir-host-solaris-oracle-amd64-oraclerel/go/src/testing/testing.go:2366 +0x385 fp=0xc001c57fe0 sp=0xc001c57f10 pc=0x50a4c5
runtime.goexit({})
...
net/http.(*Client).Get(0xc000dc2840, {0xc0006141f8?, 0x0?})
	/tmp/workdir-host-solaris-oracle-amd64-oraclerel/go/src/net/http/client.go:487 +0x5f fp=0xc000435f10 sp=0xc000435ec0 pc=0x6b0bbf
net/http_test.testTransportDecrementConnWhenIdleConnRemoved.func2()
	/tmp/workdir-host-solaris-oracle-amd64-oraclerel/go/src/net/http/transport_test.go:6526 +0x4c fp=0xc000435fb0 sp=0xc000435f10 pc=0x82918c
net/http_test.testTransportDecrementConnWhenIdleConnRemoved.func3()
	/tmp/workdir-host-solaris-oracle-amd64-oraclerel/go/src/net/http/transport_test.go:6543 +0x50 fp=0xc000435fe0 sp=0xc000435fb0 pc=0x8290b0
runtime.goexit({})
	/tmp/workdir-host-solaris-oracle-amd64-oraclerel/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000435fe8 sp=0xc000435fe0 pc=0x474ee1
created by net/http_test.testTransportDecrementConnWhenIdleConnRemoved in goroutine 2531
	/tmp/workdir-host-solaris-oracle-amd64-oraclerel/go/src/net/http/transport_test.go:6541 +0x1be

— watchflakes

gopherbot · 2024-01-08T19:16:34Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`

2024-01-08 18:26 dragonfly-amd64-622 go@75984918 net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (2m58s)

goroutine 16096 gp=0xc00034bdc0 m=11 mp=0xc000585008 [running]:
panic({0x874360?, 0xc00109ced0?})
	/tmp/workdir/go/src/runtime/panic.go:779 +0x158 fp=0xc000739f10 sp=0xc000739e60 pc=0x439758
testing.(*M).startAlarm.func1()
	/tmp/workdir/go/src/testing/testing.go:2366 +0x385 fp=0xc000739fe0 sp=0xc000739f10 pc=0x5090e5
runtime.goexit({})
...
net/http.(*http2clientConnReadLoop).run(0xc000721fa8)
	/tmp/workdir/go/src/net/http/h2_bundle.go:9303 +0x12c fp=0xc000721f60 sp=0xc000721df0 pc=0x6e29ec
net/http.(*http2ClientConn).readLoop(0xc000206480)
	/tmp/workdir/go/src/net/http/h2_bundle.go:9198 +0x65 fp=0xc000721fc8 sp=0xc000721f60 pc=0x6e1f65
net/http.(*http2Transport).newClientConn.gowrap1()
	/tmp/workdir/go/src/net/http/h2_bundle.go:7848 +0x25 fp=0xc000721fe0 sp=0xc000721fc8 pc=0x6db685
runtime.goexit({})
	/tmp/workdir/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000721fe8 sp=0xc000721fe0 pc=0x473481
created by net/http.(*http2Transport).newClientConn in goroutine 3062
	/tmp/workdir/go/src/net/http/h2_bundle.go:7848 +0xca6

— watchflakes

gopherbot · 2024-01-19T20:06:44Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`

2023-12-11 21:37 gotip-linux-amd64-boringcrypto go@c22781cb net/http.TestTransportDecrementConnWhenIdleConnRemoved/h2 (log)

=== RUN   TestTransportDecrementConnWhenIdleConnRemoved/h2
=== PAUSE TestTransportDecrementConnWhenIdleConnRemoved/h2
=== CONT  TestTransportDecrementConnWhenIdleConnRemoved/h2

— watchflakes

gopherbot · 2024-01-25T18:08:37Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" &&
	((log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`) ||
		(test ~ `TestTransportDecrementConnWhenIdleConnRemoved` && status == "ABORT"))

2024-01-22 19:00 gotip-linux-arm64 go@3e54329c net/http.TestTransportDecrementConnWhenIdleConnRemoved/h2 (log)

=== RUN   TestTransportDecrementConnWhenIdleConnRemoved/h2
=== PAUSE TestTransportDecrementConnWhenIdleConnRemoved/h2
=== CONT  TestTransportDecrementConnWhenIdleConnRemoved/h2

2024-01-24 07:25 gotip-linux-arm64 go@b4e7d630 net/http.TestTransportDecrementConnWhenIdleConnRemoved/h2 (log)

=== RUN   TestTransportDecrementConnWhenIdleConnRemoved/h2
=== PAUSE TestTransportDecrementConnWhenIdleConnRemoved/h2
=== CONT  TestTransportDecrementConnWhenIdleConnRemoved/h2

— watchflakes

gopherbot · 2024-01-25T22:48:09Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" &&
	((log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`) ||
		(test ~ `TestTransportDecrementConnWhenIdleConnRemoved` && status == "ABORT"))

2024-01-04 20:45 go1.22-openbsd-amd64 release-branch.go1.22@ead47b0a net/http.TestTransportDecrementConnWhenIdleConnRemoved/h2 [ABORT] (log)

=== RUN   TestTransportDecrementConnWhenIdleConnRemoved/h2
=== PAUSE TestTransportDecrementConnWhenIdleConnRemoved/h2
=== CONT  TestTransportDecrementConnWhenIdleConnRemoved/h2

— watchflakes

gopherbot · 2024-01-26T05:03:36Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" &&
	((log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`) ||
		(test ~ `TestTransportDecrementConnWhenIdleConnRemoved` && status == "ABORT"))

2024-01-26 04:31 linux-amd64-bookworm go@3dcdc09c net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (2m59s)

goroutine 15577 gp=0xc000191c00 m=22 mp=0xc00036d808 [running]:
panic({0x8781a0?, 0xc0012cc8e0?})
	/workdir/go/src/runtime/panic.go:768 +0x158 fp=0xc0008a9f10 sp=0xc0008a9e60 pc=0x43afb8
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2366 +0x385 fp=0xc0008a9fe0 sp=0xc0008a9f10 pc=0x513c85
runtime.goexit({})
...
net/http.(*Client).Get(0xc000df92c0, {0xc0016440f0?, 0x7878787878787878?})
	/workdir/go/src/net/http/client.go:487 +0x5f fp=0xc000a57f10 sp=0xc000a57ec0 pc=0x6b6aff
net/http_test.testTransportDecrementConnWhenIdleConnRemoved.func2()
	/workdir/go/src/net/http/transport_test.go:6526 +0x4c fp=0xc000a57fb0 sp=0xc000a57f10 pc=0x82ff4c
net/http_test.testTransportDecrementConnWhenIdleConnRemoved.func3()
	/workdir/go/src/net/http/transport_test.go:6543 +0x50 fp=0xc000a57fe0 sp=0xc000a57fb0 pc=0x82fe70
runtime.goexit({})
	/workdir/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000a57fe8 sp=0xc000a57fe0 pc=0x475a41
created by net/http_test.testTransportDecrementConnWhenIdleConnRemoved in goroutine 2538
	/workdir/go/src/net/http/transport_test.go:6541 +0x1be

— watchflakes

gopherbot · 2024-01-26T16:48:24Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" &&
	((log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`) ||
		(test ~ `TestTransportDecrementConnWhenIdleConnRemoved` && status == "ABORT"))

2024-01-26 14:04 linux-amd64-staticlockranking go@8e02e7b2 net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (2m59s)

goroutine 13918 gp=0xc000a8e700 m=0 mp=0xcdd3a0 [running]:
panic({0x87a1a0?, 0xc001d56040?})
	/workdir/go/src/runtime/panic.go:768 +0x158 fp=0xc0005eef10 sp=0xc0005eee60 pc=0x43ce38
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2366 +0x385 fp=0xc0005eefe0 sp=0xc0005eef10 pc=0x515fc5
runtime.goexit({})
...
net/http.(*Client).Get(0xc001162360, {0xc0004e0630?, 0x7878787878787878?})
	/workdir/go/src/net/http/client.go:487 +0x5f fp=0xc000f97f10 sp=0xc000f97ec0 pc=0x6b8e3f
net/http_test.testTransportDecrementConnWhenIdleConnRemoved.func2()
	/workdir/go/src/net/http/transport_test.go:6526 +0x4c fp=0xc000f97fb0 sp=0xc000f97f10 pc=0x8322cc
net/http_test.testTransportDecrementConnWhenIdleConnRemoved.func3()
	/workdir/go/src/net/http/transport_test.go:6543 +0x50 fp=0xc000f97fe0 sp=0xc000f97fb0 pc=0x8321f0
runtime.goexit({})
	/workdir/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000f97fe8 sp=0xc000f97fe0 pc=0x477d81
created by net/http_test.testTransportDecrementConnWhenIdleConnRemoved in goroutine 2593
	/workdir/go/src/net/http/transport_test.go:6541 +0x1be

— watchflakes

gopherbot · 2024-01-30T15:49:07Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" &&
	((log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`) ||
		(test ~ `TestTransportDecrementConnWhenIdleConnRemoved` && status == "ABORT"))

2024-01-29 22:55 gotip-openbsd-amd64 go@0c64be46 net/http.TestTransportDecrementConnWhenIdleConnRemoved/h2 [ABORT] (log)

=== RUN   TestTransportDecrementConnWhenIdleConnRemoved/h2
=== PAUSE TestTransportDecrementConnWhenIdleConnRemoved/h2
=== CONT  TestTransportDecrementConnWhenIdleConnRemoved/h2

— watchflakes

gopherbot · 2024-01-31T23:03:15Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" &&
	((log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`) ||
		(test ~ `TestTransportDecrementConnWhenIdleConnRemoved` && status == "ABORT"))

2024-01-31 20:51 linux-amd64-nocgo go@5c0d0929 net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (3m0s)

goroutine 15916 gp=0xc000337c00 m=0 mp=0xccd280 [running]:
panic({0x872ac0?, 0xc001cf5220?})
	/workdir/go/src/runtime/panic.go:768 +0x158 fp=0xc000b43f10 sp=0xc000b43e60 pc=0x439738
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2366 +0x385 fp=0xc000b43fe0 sp=0xc000b43f10 pc=0x512225
runtime.goexit({})
...
net/http.(*http2Framer).ReadFrame(0xc000d9c2a0)
	/workdir/go/src/net/http/h2_bundle.go:1902 +0x85 fp=0xc00044bef8 sp=0xc00044be50 pc=0x6c1445
net/http.(*http2serverConn).readFrames(0xc0007ac9c0)
	/workdir/go/src/net/http/h2_bundle.go:4602 +0x87 fp=0xc00044bfc8 sp=0xc00044bef8 pc=0x6cb347
net/http.(*http2serverConn).serve.gowrap7()
	/workdir/go/src/net/http/h2_bundle.go:4714 +0x25 fp=0xc00044bfe0 sp=0xc00044bfc8 pc=0x6cc985
runtime.goexit({})
	/workdir/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00044bfe8 sp=0xc00044bfe0 pc=0x474061
created by net/http.(*http2serverConn).serve in goroutine 4065
	/workdir/go/src/net/http/h2_bundle.go:4714 +0x56a

— watchflakes

gopherbot · 2024-02-02T15:49:34Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" &&
	((log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`) ||
		(test ~ `TestTransportDecrementConnWhenIdleConnRemoved` && status == "ABORT"))

2024-02-02 15:13 linux-amd64-alpine go@244ccf47 net/http (log)

panic: test timed out after 3m0s
running tests:
	TestTransportDecrementConnWhenIdleConnRemoved/h2 (2m59s)

goroutine 15930 gp=0xc0001ed6c0 m=7 mp=0xc0004a0008 [running]:
panic({0x878120?, 0xc001944780?})
	/workdir/go/src/runtime/panic.go:768 +0x158 fp=0xc000a2ff10 sp=0xc000a2fe60 pc=0x43b178
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2366 +0x385 fp=0xc000a2ffe0 sp=0xc000a2ff10 pc=0x5140a5
runtime.goexit({})
...
net/http.(*Client).Get(0xc000ed72f0, {0xc0005fa948?, 0x73e8d7f0ed5524bb?})
	/workdir/go/src/net/http/client.go:487 +0x5f fp=0xc002ec9f10 sp=0xc002ec9ec0 pc=0x6b6ebf
net/http_test.testTransportDecrementConnWhenIdleConnRemoved.func2()
	/workdir/go/src/net/http/transport_test.go:6526 +0x4c fp=0xc002ec9fb0 sp=0xc002ec9f10 pc=0x82feac
net/http_test.testTransportDecrementConnWhenIdleConnRemoved.func3()
	/workdir/go/src/net/http/transport_test.go:6543 +0x50 fp=0xc002ec9fe0 sp=0xc002ec9fb0 pc=0x82fdd0
runtime.goexit({})
	/workdir/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc002ec9fe8 sp=0xc002ec9fe0 pc=0x475e81
created by net/http_test.testTransportDecrementConnWhenIdleConnRemoved in goroutine 3119
	/workdir/go/src/net/http/transport_test.go:6541 +0x1be

— watchflakes

gopherbot · 2024-02-02T18:42:36Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" &&
	((log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`) ||
		(test ~ `TestTransportDecrementConnWhenIdleConnRemoved` && status == "ABORT"))

2024-01-31 19:22 gotip-linux-amd64-newinliner go@600225f8 net/http.TestTransportDecrementConnWhenIdleConnRemoved/h2 [ABORT] (log)

=== RUN   TestTransportDecrementConnWhenIdleConnRemoved/h2
=== PAUSE TestTransportDecrementConnWhenIdleConnRemoved/h2
=== CONT  TestTransportDecrementConnWhenIdleConnRemoved/h2

— watchflakes

gopherbot · 2024-02-05T17:18:07Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" &&
	((log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`) ||
		(test ~ `TestTransportDecrementConnWhenIdleConnRemoved` && status == "ABORT"))

2024-02-02 23:14 gotip-openbsd-amd64 go@b8ac61e6 net/http.TestTransportDecrementConnWhenIdleConnRemoved/h2 [ABORT] (log)

=== RUN   TestTransportDecrementConnWhenIdleConnRemoved/h2
=== PAUSE TestTransportDecrementConnWhenIdleConnRemoved/h2
=== CONT  TestTransportDecrementConnWhenIdleConnRemoved/h2

— watchflakes

gopherbot · 2024-02-15T19:42:38Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" &&
	((log ~ `running tests:\n\s*TestTransportDecrementConnWhenIdleConnRemoved` && log ~ `panic: test timed out`) ||
		(test ~ `TestTransportDecrementConnWhenIdleConnRemoved` && status == "ABORT"))

2024-02-12 22:38 gotip-darwin-arm64_12 go@e45c262f net/http.TestTransportDecrementConnWhenIdleConnRemoved/h2 [ABORT] (log)

=== RUN   TestTransportDecrementConnWhenIdleConnRemoved/h2
=== PAUSE TestTransportDecrementConnWhenIdleConnRemoved/h2
=== CONT  TestTransportDecrementConnWhenIdleConnRemoved/h2

— watchflakes

bcmills · 2024-02-15T21:16:15Z

Also https://ci.chromium.org/ui/inv/build-8756698374321080385/test-results (a TryBot on an unrelated CL).

@neild, given the high failure rate, can we prioritize either a fix or a skip for this test?

bcmills added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Aug 29, 2023

bcmills added this to the Backlog milestone Aug 29, 2023

bcmills mentioned this issue Aug 30, 2023

net/http: TestTransportDecrementConnWhenIdleConnRemoved/h2 times out #62363

Closed

bcmills added this to Test Flakes Sep 5, 2023

dmitshur changed the title ~~net/http: apparent deadlock in TestTransportDecrementConnWhenIdleConnRemoved on LUCI builders~~ net/http: apparent deadlock in TestTransportDecrementConnWhenIdleConnRemoved Oct 26, 2023

bcmills moved this to Active in Test Flakes Dec 5, 2023

bcmills mentioned this issue Feb 21, 2024

x/build: timeout on LUCI openbsd-amd64 builder #65311

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net/http: apparent deadlock in TestTransportDecrementConnWhenIdleConnRemoved #62357

net/http: apparent deadlock in TestTransportDecrementConnWhenIdleConnRemoved #62357

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edited by cherrymui

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bcmills commented Feb 15, 2024

net/http: apparent deadlock in TestTransportDecrementConnWhenIdleConnRemoved #62357

net/http: apparent deadlock in TestTransportDecrementConnWhenIdleConnRemoved #62357

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bcmills commented Aug 29, 2023 •

edited by cherrymui

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mknyszek commented Aug 30, 2023 •

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