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net/http: unexplained timeout on wasip1/wasm #64321

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gopherbot opened this issue Nov 21, 2023 · 11 comments
Open

net/http: unexplained timeout on wasip1/wasm #64321

gopherbot opened this issue Nov 21, 2023 · 11 comments
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arch-wasm WebAssembly issues NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.
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@gopherbot
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gopherbot commented Nov 21, 2023

#!watchflakes
default <- goarch == "wasm" && pkg == "net/http" && log ~ `panic: test timed out`

Issue created automatically to collect these failures.

Example (log):

panic: test timed out after 3m0s
running tests:
	TestClientRedirectNoLocation (2m49s)
	TestClientRedirectNoLocation/h1 (2m20s)
	TestClientRedirectNoLocation/h2 (2m20s)
	TestConnContextNotModifyingAllContexts (2m48s)
	TestContentEncodingNoSniffing (2m48s)
	TestContentTypeWithVariousSources (2m48s)
	TestDisableContentLength (2m48s)
	TestDisableKeepAliveUpgrade (2m48s)
...
net/http_test.run[...].func1()
	/workdir/go/src/net/http/clientserver_test.go:85 +0xa fp=0x21ddf60 sp=0x21ddf10 pc=0x3407000a
testing.tRunner(0x22e7380, 0x1ad8900)
	/workdir/go/src/testing/testing.go:1682 +0xd fp=0x21ddfc8 sp=0x21ddf60 pc=0x1add000d
testing.(*T).Run.gowrap1()
	/workdir/go/src/testing/testing.go:1735 +0x2 fp=0x21ddfe0 sp=0x21ddfc8 pc=0x1ae30002
runtime.goexit({})
	/workdir/go/src/runtime/asm_wasm.s:434 +0x1 fp=0x21ddfe8 sp=0x21ddfe0 pc=0x151b0001
created by testing.(*T).Run in goroutine 1250
	/workdir/go/src/testing/testing.go:1735 +0x43

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 Nov 21, 2023
@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "net/http" && test == ""
2023-11-21 21:28 wasip1-wasm-wazero go@d1dcffdb net/http (log)
panic: test timed out after 3m0s
running tests:
	TestClientRedirectNoLocation (2m49s)
	TestClientRedirectNoLocation/h1 (2m20s)
	TestClientRedirectNoLocation/h2 (2m20s)
	TestConnContextNotModifyingAllContexts (2m48s)
	TestContentEncodingNoSniffing (2m48s)
	TestContentTypeWithVariousSources (2m48s)
	TestDisableContentLength (2m48s)
	TestDisableKeepAliveUpgrade (2m48s)
...
net/http_test.run[...].func1()
	/workdir/go/src/net/http/clientserver_test.go:85 +0xa fp=0x21ddf60 sp=0x21ddf10 pc=0x3407000a
testing.tRunner(0x22e7380, 0x1ad8900)
	/workdir/go/src/testing/testing.go:1682 +0xd fp=0x21ddfc8 sp=0x21ddf60 pc=0x1add000d
testing.(*T).Run.gowrap1()
	/workdir/go/src/testing/testing.go:1735 +0x2 fp=0x21ddfe0 sp=0x21ddfc8 pc=0x1ae30002
runtime.goexit({})
	/workdir/go/src/runtime/asm_wasm.s:434 +0x1 fp=0x21ddfe8 sp=0x21ddfe0 pc=0x151b0001
created by testing.(*T).Run in goroutine 1250
	/workdir/go/src/testing/testing.go:1735 +0x43

watchflakes

@bcmills bcmills added the arch-wasm WebAssembly issues label Nov 27, 2023
@bcmills bcmills added this to the Backlog milestone Nov 27, 2023
@bcmills
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bcmills commented Nov 27, 2023

This may be a bug in https://go.dev/cl/526117. I will investigate.

(CC @golang/wasm)

@bcmills bcmills self-assigned this Nov 27, 2023
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bcmills commented Nov 27, 2023

Note that the actual interestingly-running test here is:

	TestTransportExpect100Continue/h1 (2s)

(Filed #64404 for the unclear logging.)

@bcmills bcmills changed the title net/http: unrecognized failures net/http: unexplained timeout on wasip1/wasm Nov 27, 2023
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bcmills commented Nov 27, 2023

Given that there was a test that had only been running for 2s, it seems like the test must have hung somewhere else for a long time. Unassigning to collect more data and look for a pattern.

(CC @neild)

@bcmills bcmills removed their assignment Nov 27, 2023
@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
post <- goarch == "wasm" && pkg == "net/http" && log ~ `panic: test timed out`
2023-12-07 19:52 gotip-wasip1-wasm_wazero go@e1c0349a net/http.TestIssue4191_InfiniteGetTimeout (log)
=== RUN   TestIssue4191_InfiniteGetTimeout/h1
=== PAUSE TestIssue4191_InfiniteGetTimeout/h1
=== CONT  TestIssue4191_InfiniteGetTimeout/h1
panic: test timed out after 3m0s
running tests:
	TestIssue4191_InfiniteGetTimeout/h1 (2m4s)

goroutine 15243 gp=0x1a94380 m=0 mp=0x7130a0 [running]:
panic({0x4fe60, 0x4ee5780})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:779 +0x1f fp=0x23e7f00 sp=0x23e7e58 pc=0x1293001f
...
net/http_test.run[...].func1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/clientserver_test.go:85 +0xa fp=0x21c5f60 sp=0x21c5f10 pc=0x3449000a
testing.tRunner(0x2843860, 0x18ca840)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1689 +0xd fp=0x21c5fc8 sp=0x21c5f60 pc=0x1b1f000d
testing.(*T).Run.gowrap1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1742 +0x2 fp=0x21c5fe0 sp=0x21c5fc8 pc=0x1b250002
runtime.goexit({})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_wasm.s:434 +0x1 fp=0x21c5fe8 sp=0x21c5fe0 pc=0x15580001
created by testing.(*T).Run in goroutine 1250
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1742 +0x43
2024-01-08 17:02 gotip-wasip1-wasm_wazero go@10a66d68 net/http.TestIssue4191_InfiniteGetTimeout (log)
=== RUN   TestIssue4191_InfiniteGetTimeout/h1
=== PAUSE TestIssue4191_InfiniteGetTimeout/h1
=== CONT  TestIssue4191_InfiniteGetTimeout/h1
panic: test timed out after 3m0s
running tests:
	TestIssue4191_InfiniteGetTimeout/h1 (2m2s)

goroutine 15301 gp=0x21d6a80 m=0 mp=0x714160 [running]:
panic({0x4fe60, 0x19143a0})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:779 +0x1f fp=0x23e9f00 sp=0x23e9e58 pc=0x1293001f
...
net/http_test.run[...].func1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/clientserver_test.go:85 +0xa fp=0x21f1f60 sp=0x21f1f10 pc=0x344a000a
testing.tRunner(0x23df860, 0x2098840)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1689 +0xd fp=0x21f1fc8 sp=0x21f1f60 pc=0x1b1f000d
testing.(*T).Run.gowrap1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1742 +0x2 fp=0x21f1fe0 sp=0x21f1fc8 pc=0x1b250002
runtime.goexit({})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_wasm.s:434 +0x1 fp=0x21f1fe8 sp=0x21f1fe0 pc=0x15580001
created by testing.(*T).Run in goroutine 1251
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1742 +0x43

watchflakes

@bcmills
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bcmills commented Jan 19, 2024

The above seems like a different failure mode; filed as #65177.

@bcmills bcmills added NeedsFix The path to resolution is known, but the work has not been done. FixPending Issues that have a fix which has not yet been reviewed or submitted. labels Jan 19, 2024
@bcmills bcmills self-assigned this Jan 19, 2024
@bcmills bcmills modified the milestones: Backlog, Go1.22 Jan 19, 2024
@bcmills bcmills removed NeedsFix The path to resolution is known, but the work has not been done. FixPending Issues that have a fix which has not yet been reviewed or submitted. labels Jan 19, 2024
@bcmills bcmills modified the milestones: Go1.22, Backlog Jan 19, 2024
@bcmills bcmills removed their assignment Jan 19, 2024
@gopherbot
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Change https://go.dev/cl/557037 mentions this issue: net: work around runtime scheduler starvation on js and wasip1

@bcmills
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bcmills commented Jan 19, 2024

This may or may not be fixed by https://go.dev/cl/557037.

@bcmills bcmills added the WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. label Jan 19, 2024
gopherbot pushed a commit that referenced this issue Jan 19, 2024
Fixes #65177.
Updates #65178.
Updates #64321.

Change-Id: I698fd3b688c7dfbde692eb7c29cbdafc89e7ca32
Cq-Include-Trybots: luci.golang.try:gotip-js-wasm,gotip-wasip1-wasm_wasmtime,gotip-wasip1-wasm_wazero
Reviewed-on: https://go-review.googlesource.com/c/go/+/557037
Auto-Submit: Bryan Mills <bcmills@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
default <- goarch == "wasm" && pkg == "net/http" && log ~ `panic: test timed out`
2024-01-29 22:55 js-wasm-node18 go@0c64be46 net/http (log)
panic: test timed out after 3m0s
running tests:
	TestServerWriteTimeout/h2 (2m52s)

goroutine 51007 gp=0x1a45a40 m=0 mp=0x719e20 [running]:
panic({0x50640, 0x18e97f0})
	/workdir/go/src/runtime/panic.go:768 +0x1f fp=0x1b5df00 sp=0x1b5de58 pc=0x127b001f
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2366 +0x44 fp=0x1b5dfe0 sp=0x1b5df00 pc=0x1b2f0044
runtime.goexit({})
...
net/http_test.run[...].func1()
	/workdir/go/src/net/http/clientserver_test.go:85 +0xa fp=0x2b41760 sp=0x2b41710 pc=0x344f000a
testing.tRunner(0x2b70340, 0x2b51800)
	/workdir/go/src/testing/testing.go:1689 +0xd fp=0x2b417c8 sp=0x2b41760 pc=0x1b16000d
testing.(*T).Run.gowrap1()
	/workdir/go/src/testing/testing.go:1742 +0x2 fp=0x2b417e0 sp=0x2b417c8 pc=0x1b1c0002
runtime.goexit({})
	/workdir/go/src/runtime/asm_wasm.s:434 +0x1 fp=0x2b417e8 sp=0x2b417e0 pc=0x153f0001
created by testing.(*T).Run in goroutine 1141
	/workdir/go/src/testing/testing.go:1742 +0x43
2024-01-29 22:55 wasip1-wasm-wazero go@0c64be46 net/http (log)
panic: test timed out after 3m0s
running tests:
	TestServerWriteTimeout/h2 (2m41s)

goroutine 18132 gp=0x1ac61c0 m=0 mp=0x70e180 [running]:
panic({0x4fe80, 0x198a7f0})
	/workdir/go/src/runtime/panic.go:768 +0x1f fp=0x1a31f00 sp=0x1a31e58 pc=0x1293001f
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2366 +0x44 fp=0x1a31fe0 sp=0x1a31f00 pc=0x1b380044
runtime.goexit({})
...
net/http_test.run[...].func1()
	/workdir/go/src/net/http/clientserver_test.go:85 +0xa fp=0x2b9af60 sp=0x2b9af10 pc=0x344a000a
testing.tRunner(0x2bec340, 0x2bbd020)
	/workdir/go/src/testing/testing.go:1689 +0xd fp=0x2b9afc8 sp=0x2b9af60 pc=0x1b1f000d
testing.(*T).Run.gowrap1()
	/workdir/go/src/testing/testing.go:1742 +0x2 fp=0x2b9afe0 sp=0x2b9afc8 pc=0x1b250002
runtime.goexit({})
	/workdir/go/src/runtime/asm_wasm.s:434 +0x1 fp=0x2b9afe8 sp=0x2b9afe0 pc=0x15580001
created by testing.(*T).Run in goroutine 1135
	/workdir/go/src/testing/testing.go:1742 +0x43
2024-01-30 00:04 js-wasm-node18 go@f96d9a64 net/http (log)
panic: test timed out after 3m0s
running tests:
	TestServerWriteTimeout/h2 (2m52s)

goroutine 50509 gp=0x19c9a40 m=0 mp=0x719e20 [running]:
panic({0x50640, 0x193f0a0})
	/workdir/go/src/runtime/panic.go:768 +0x1f fp=0x1ab3f00 sp=0x1ab3e58 pc=0x127b001f
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2366 +0x44 fp=0x1ab3fe0 sp=0x1ab3f00 pc=0x1b300044
runtime.goexit({})
...
net/http_test.run[...].func1()
	/workdir/go/src/net/http/clientserver_test.go:85 +0xa fp=0x2a9f760 sp=0x2a9f710 pc=0x3450000a
testing.tRunner(0x2ae8340, 0x2ac1770)
	/workdir/go/src/testing/testing.go:1689 +0xd fp=0x2a9f7c8 sp=0x2a9f760 pc=0x1b17000d
testing.(*T).Run.gowrap1()
	/workdir/go/src/testing/testing.go:1742 +0x2 fp=0x2a9f7e0 sp=0x2a9f7c8 pc=0x1b1d0002
runtime.goexit({})
	/workdir/go/src/runtime/asm_wasm.s:434 +0x1 fp=0x2a9f7e8 sp=0x2a9f7e0 pc=0x15400001
created by testing.(*T).Run in goroutine 1139
	/workdir/go/src/testing/testing.go:1742 +0x43
2024-01-30 00:04 wasip1-wasm-wazero go@f96d9a64 net/http (log)
panic: test timed out after 3m0s
running tests:
	TestServerWriteTimeout/h2 (2m41s)

goroutine 18632 gp=0x19af500 m=0 mp=0x70e180 [running]:
panic({0x4fea0, 0x32353d0})
	/workdir/go/src/runtime/panic.go:768 +0x1f fp=0x2066f00 sp=0x2066e58 pc=0x1293001f
testing.(*M).startAlarm.func1()
	/workdir/go/src/testing/testing.go:2366 +0x44 fp=0x2066fe0 sp=0x2066f00 pc=0x1b390044
runtime.goexit({})
...
net/http_test.run[...].func1()
	/workdir/go/src/net/http/clientserver_test.go:85 +0xa fp=0x2bd5f60 sp=0x2bd5f10 pc=0x344b000a
testing.tRunner(0x2bf6340, 0x2be9260)
	/workdir/go/src/testing/testing.go:1689 +0xd fp=0x2bd5fc8 sp=0x2bd5f60 pc=0x1b20000d
testing.(*T).Run.gowrap1()
	/workdir/go/src/testing/testing.go:1742 +0x2 fp=0x2bd5fe0 sp=0x2bd5fc8 pc=0x1b260002
runtime.goexit({})
	/workdir/go/src/runtime/asm_wasm.s:434 +0x1 fp=0x2bd5fe8 sp=0x2bd5fe0 pc=0x15590001
created by testing.(*T).Run in goroutine 1139
	/workdir/go/src/testing/testing.go:1742 +0x43

watchflakes

@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
default <- goarch == "wasm" && pkg == "net/http" && log ~ `panic: test timed out`
2024-01-29 22:55 gotip-wasip1-wasm_wasmtime go@0c64be46 net/http.TestServerWriteTimeout [ABORT] (log)
=== RUN   TestServerWriteTimeout/h2
=== PAUSE TestServerWriteTimeout/h2
=== CONT  TestServerWriteTimeout/h2
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:563: read tcp 127.0.0.1:562->127.0.0.1:563: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:564: read tcp 127.0.0.1:562->127.0.0.1:564: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:565: read tcp 127.0.0.1:562->127.0.0.1:565: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:566: read tcp 127.0.0.1:562->127.0.0.1:566: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:567: read tcp 127.0.0.1:562->127.0.0.1:567: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:568: read tcp 127.0.0.1:562->127.0.0.1:568: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:569: read tcp 127.0.0.1:562->127.0.0.1:569: i/o timeout
...
panic: test timed out after 3m0s
running tests:
	TestServerWriteTimeout/h2 (2m30s)

goroutine 42204 [running]:
testing.(*M).startAlarm.func1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:2366 +0x44
created by time.goFunc
	/home/swarming/.swarming/w/ir/x/w/goroot/src/time/sleep.go:177 +0x5

...
testing.(*T).Parallel(0x2b7e340)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1484 +0x20
net/http_test.setParallel(0x2b7e340)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/main_test.go:95 +0x20
net/http_test.run[...].func1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/clientserver_test.go:85 +0xa
testing.tRunner(0x2b7e340, 0x2b7dbc0)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1689 +0xd
created by testing.(*T).Run in goroutine 1139
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1742 +0x43
2024-01-29 22:55 gotip-wasip1-wasm_wazero go@0c64be46 net/http.TestServerWriteTimeout [ABORT] (log)
=== RUN   TestServerWriteTimeout/h2
=== PAUSE TestServerWriteTimeout/h2
=== CONT  TestServerWriteTimeout/h2
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:563: read tcp 127.0.0.1:562->127.0.0.1:563: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:564: read tcp 127.0.0.1:562->127.0.0.1:564: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:565: read tcp 127.0.0.1:562->127.0.0.1:565: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:566: read tcp 127.0.0.1:562->127.0.0.1:566: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:567: read tcp 127.0.0.1:562->127.0.0.1:567: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:568: read tcp 127.0.0.1:562->127.0.0.1:568: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:569: read tcp 127.0.0.1:562->127.0.0.1:569: i/o timeout
...
panic: test timed out after 3m0s
running tests:
	TestServerWriteTimeout/h2 (2m35s)

goroutine 18497 gp=0x1ac76c0 m=0 mp=0x712180 [running]:
panic({0x4fe80, 0x18374b0})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:768 +0x1f fp=0x2254f00 sp=0x2254e58 pc=0x1293001f
testing.(*M).startAlarm.func1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:2366 +0x44 fp=0x2254fe0 sp=0x2254f00 pc=0x1b380044
runtime.goexit({})
...
net/http_test.run[...].func1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/clientserver_test.go:85 +0xa fp=0x2b70f60 sp=0x2b70f10 pc=0x344a000a
testing.tRunner(0x3034340, 0x300d0e0)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1689 +0xd fp=0x2b70fc8 sp=0x2b70f60 pc=0x1b1f000d
testing.(*T).Run.gowrap1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1742 +0x2 fp=0x2b70fe0 sp=0x2b70fc8 pc=0x1b250002
runtime.goexit({})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_wasm.s:434 +0x1 fp=0x2b70fe8 sp=0x2b70fe0 pc=0x15580001
created by testing.(*T).Run in goroutine 1140
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1742 +0x43
2024-01-30 00:04 gotip-wasip1-wasm_wasmtime go@f96d9a64 net/http.TestServerWriteTimeout [ABORT] (log)
=== RUN   TestServerWriteTimeout/h2
=== PAUSE TestServerWriteTimeout/h2
=== CONT  TestServerWriteTimeout/h2
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:563: read tcp 127.0.0.1:562->127.0.0.1:563: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:564: read tcp 127.0.0.1:562->127.0.0.1:564: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:565: read tcp 127.0.0.1:562->127.0.0.1:565: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:566: read tcp 127.0.0.1:562->127.0.0.1:566: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:567: read tcp 127.0.0.1:562->127.0.0.1:567: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:568: read tcp 127.0.0.1:562->127.0.0.1:568: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:569: read tcp 127.0.0.1:562->127.0.0.1:569: i/o timeout
...
panic: test timed out after 3m0s
running tests:
	TestServerWriteTimeout/h2 (2m30s)

goroutine 42091 [running]:
testing.(*M).startAlarm.func1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:2366 +0x44
created by time.goFunc
	/home/swarming/.swarming/w/ir/x/w/goroot/src/time/sleep.go:177 +0x5

...
testing.(*T).Parallel(0x2b76340)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1484 +0x20
net/http_test.setParallel(0x2b76340)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/main_test.go:95 +0x20
net/http_test.run[...].func1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/clientserver_test.go:85 +0xa
testing.tRunner(0x2b76340, 0x2b5ea50)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1689 +0xd
created by testing.(*T).Run in goroutine 1140
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1742 +0x43
2024-01-30 00:04 gotip-wasip1-wasm_wazero go@f96d9a64 net/http.TestServerWriteTimeout [ABORT] (log)
=== RUN   TestServerWriteTimeout/h2
=== PAUSE TestServerWriteTimeout/h2
=== CONT  TestServerWriteTimeout/h2
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:563: read tcp 127.0.0.1:562->127.0.0.1:563: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:564: read tcp 127.0.0.1:562->127.0.0.1:564: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:565: read tcp 127.0.0.1:562->127.0.0.1:565: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:566: read tcp 127.0.0.1:562->127.0.0.1:566: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:567: read tcp 127.0.0.1:562->127.0.0.1:567: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:568: read tcp 127.0.0.1:562->127.0.0.1:568: i/o timeout
    clientserver_test.go:210: server log: http: TLS handshake error from 127.0.0.1:569: read tcp 127.0.0.1:562->127.0.0.1:569: i/o timeout
...
panic: test timed out after 3m0s
running tests:
	TestServerWriteTimeout/h2 (2m37s)

goroutine 18791 gp=0x1afca80 m=0 mp=0x713180 [running]:
panic({0x4fea0, 0x18f5b70})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:768 +0x1f fp=0x1b22f00 sp=0x1b22e58 pc=0x1293001f
testing.(*M).startAlarm.func1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:2366 +0x44 fp=0x1b22fe0 sp=0x1b22f00 pc=0x1b390044
runtime.goexit({})
...
net/http_test.run[...].func1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/clientserver_test.go:85 +0xa fp=0x30caf60 sp=0x30caf10 pc=0x344b000a
testing.tRunner(0x2bf6340, 0x2bf0de0)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1689 +0xd fp=0x30cafc8 sp=0x30caf60 pc=0x1b20000d
testing.(*T).Run.gowrap1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1742 +0x2 fp=0x30cafe0 sp=0x30cafc8 pc=0x1b260002
runtime.goexit({})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_wasm.s:434 +0x1 fp=0x30cafe8 sp=0x30cafe0 pc=0x15590001
created by testing.(*T).Run in goroutine 1136
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1742 +0x43

watchflakes

@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
default <- goarch == "wasm" && pkg == "net/http" && log ~ `panic: test timed out`
2024-01-04 20:40 go1.22-wasip1-wasm_wazero release-branch.go1.22@1e07c144 net/http.TestChunkedNoContent [ABORT] (log)
=== RUN   TestChunkedNoContent
=== PAUSE TestChunkedNoContent
=== CONT  TestChunkedNoContent

watchflakes

ezz-no pushed a commit to ezz-no/go-ezzno that referenced this issue Feb 18, 2024
Fixes golang#65177.
Updates golang#65178.
Updates golang#64321.

Change-Id: I698fd3b688c7dfbde692eb7c29cbdafc89e7ca32
Cq-Include-Trybots: luci.golang.try:gotip-js-wasm,gotip-wasip1-wasm_wasmtime,gotip-wasip1-wasm_wazero
Reviewed-on: https://go-review.googlesource.com/c/go/+/557037
Auto-Submit: Bryan Mills <bcmills@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
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