net: test timeout on `linux-mips64le-rtrk` builder

[gopherbot]

#!watchflakes
post <- builder ~ `linux-mips.*-rtrk` && pkg == "net" && `panic: test timed out`

Issue created automatically to collect these failures.

Example (log):

panic: test timed out after 12m0s
running tests:
	TestDNSSRVUniformity (0s)

net.byPriorityWeight.shuffleByWeight({0xc000446e60, 0x2, 0x2})
	/tmp/gobuilder-mips64le/go/src/net/dnsclient.go:168 +0x1c fp=0xc000046d18 sp=0xc000046d18 pc=0x1201c9564
net.checkDistribution(0xc00040bd40, {0xc000342960, 0x2, 0x2}, 0x3fa999999999999a)
	/tmp/gobuilder-mips64le/go/src/net/dnsclient_test.go:23 +0x1a8 fp=0xc000046ef8 sp=0xc000046d18 pc=0x12021eb30
net.testUniformity(0xc00040bd40, 0x2, 0x3fa999999999999a)
	/tmp/gobuilder-mips64le/go/src/net/dnsclient_test.go:45 +0x160 fp=0xc000046f48 sp=0xc000046ef8 pc=0x12021ef30
net.TestDNSSRVUniformity(0xc00040bd40)
	/tmp/gobuilder-mips64le/go/src/net/dnsclient_test.go:49 +0x58 fp=0xc000046f68 sp=0xc000046f48 pc=0x12021ef98
testing.tRunner(0xc00040bd40, 0x1203601e0)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "net" && test == "TestDNSSRVUniformity"

2023-09-20 14:46 linux-mips64le-rtrk go@fd54185a net.TestDNSSRVUniformity (log)

panic: test timed out after 12m0s
running tests:
	TestDNSSRVUniformity (0s)

net.byPriorityWeight.shuffleByWeight({0xc000446e60, 0x2, 0x2})
	/tmp/gobuilder-mips64le/go/src/net/dnsclient.go:168 +0x1c fp=0xc000046d18 sp=0xc000046d18 pc=0x1201c9564
net.checkDistribution(0xc00040bd40, {0xc000342960, 0x2, 0x2}, 0x3fa999999999999a)
	/tmp/gobuilder-mips64le/go/src/net/dnsclient_test.go:23 +0x1a8 fp=0xc000046ef8 sp=0xc000046d18 pc=0x12021eb30
net.testUniformity(0xc00040bd40, 0x2, 0x3fa999999999999a)
	/tmp/gobuilder-mips64le/go/src/net/dnsclient_test.go:45 +0x160 fp=0xc000046f48 sp=0xc000046ef8 pc=0x12021ef30
net.TestDNSSRVUniformity(0xc00040bd40)
	/tmp/gobuilder-mips64le/go/src/net/dnsclient_test.go:49 +0x58 fp=0xc000046f68 sp=0xc000046f48 pc=0x12021ef98
testing.tRunner(0xc00040bd40, 0x1203601e0)

— watchflakes

[bcmills]

Since this test had only just started running, this looks to me like maybe just too small a GO_TEST_TIMEOUT_SCALE on the builder..?

(attn @golang/mips)

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- builder ~ `linux-mips.*-rtrk` && pkg == "net" && `panic: test timed out`

2023-09-06 19:37 linux-mips64le-rtrk go@729f214e net.TestDialerControlContext (log)

panic: test timed out after 12m0s
running tests:
	TestDialerControlContext (11m59s)
	TestDialerControlContext/StreamDial (11m59s)

runtime.gopark(0x120361990, 0xc00005f248, 0xe, 0x17, 0x2)
	/tmp/gobuilder-mips64le/go/src/runtime/proc.go:398 +0x140 fp=0xc0004225e8 sp=0xc0004225d0 pc=0x120052f70
runtime.chanrecv(0xc00005f1f0, 0xc0004226cf, 0x1)
	/tmp/gobuilder-mips64le/go/src/runtime/chan.go:583 +0x5a4 fp=0xc000422658 sp=0xc0004225e8 pc=0x120009514
runtime.chanrecv1(0xc00005f1f0, 0xc0004226cf)
	/tmp/gobuilder-mips64le/go/src/runtime/chan.go:442 +0x2c fp=0xc000422680 sp=0xc000422658 pc=0x120008f14
testing.(*T).Run(0xc0002e0ea0, {0x12034a1e4, 0xa}, 0x120361590)
	/tmp/gobuilder-mips64le/go/src/testing/testing.go:1649 +0x4f0 fp=0xc000422738 sp=0xc000422680 pc=0x120140630
net.TestDialerControlContext(0xc0002e0ea0)
	/tmp/gobuilder-mips64le/go/src/net/dial_test.go:1030 +0x68 fp=0xc000422768 sp=0xc000422738 pc=0x12021c2b8
testing.tRunner(0xc0002e0ea0, 0x120360c00)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- builder ~ `linux-mips.*-rtrk` && pkg == "net" && `panic: test timed out`

2023-10-06 22:31 linux-mips64le-rtrk go@6e8caefc net.TestDialerControlContext (log)

panic: test timed out after 12m0s
running tests:
	TestDialerControlContext (11m59s)
	TestDialerControlContext/StreamDial (11m59s)
	TestDialerControlContext/StreamDial/tcp (11m59s)

runtime.gopark(0x120362870, 0xc00005f638, 0xe, 0x17, 0x2)
	/tmp/gobuilder-mips64le/go/src/runtime/proc.go:400 +0x140 fp=0xc0000375e8 sp=0xc0000375d0 pc=0x1200537c8
runtime.chanrecv(0xc00005f5e0, 0xc0000376cf, 0x1)
	/tmp/gobuilder-mips64le/go/src/runtime/chan.go:583 +0x5a4 fp=0xc000037658 sp=0xc0000375e8 pc=0x12000986c
runtime.chanrecv1(0xc00005f5e0, 0xc0000376cf)
	/tmp/gobuilder-mips64le/go/src/runtime/chan.go:442 +0x2c fp=0xc000037680 sp=0xc000037658 pc=0x12000926c
testing.(*T).Run(0xc0002d3d40, {0x12034aefa, 0xa}, 0x120362458)
	/tmp/gobuilder-mips64le/go/src/testing/testing.go:1647 +0x4f0 fp=0xc000037738 sp=0xc000037680 pc=0x120141340
net.TestDialerControlContext(0xc0002d3d40)
	/tmp/gobuilder-mips64le/go/src/net/dial_test.go:1032 +0x68 fp=0xc000037768 sp=0xc000037738 pc=0x12021e250
testing.tRunner(0xc0002d3d40, 0x120361a88)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- builder ~ `linux-mips.*-rtrk` && pkg == "net" && `panic: test timed out`

2023-10-12 18:12 linux-mips64le-rtrk go@b56645a8 net.TestDialerControlContext (log)

panic: test timed out after 12m0s
running tests:
	TestDialerControlContext (11m59s)
	TestDialerControlContext/StreamDial (11m59s)
	TestDialerControlContext/StreamDial/tcp (11m59s)

runtime.gopark(0x1203642b0, 0xc000316de8, 0xe, 0x17, 0x2)
	/tmp/gobuilder-mips64le/go/src/runtime/proc.go:400 +0x140 fp=0xc0000305e8 sp=0xc0000305d0 pc=0x120053680
runtime.chanrecv(0xc000316d90, 0xc0000306cf, 0x1)
	/tmp/gobuilder-mips64le/go/src/runtime/chan.go:583 +0x5a4 fp=0xc000030658 sp=0xc0000305e8 pc=0x12000986c
runtime.chanrecv1(0xc000316d90, 0xc0000306cf)
	/tmp/gobuilder-mips64le/go/src/runtime/chan.go:442 +0x2c fp=0xc000030680 sp=0xc000030658 pc=0x12000926c
testing.(*T).Run(0xc0003621a0, {0x12034c91a, 0xa}, 0x120363e98)
	/tmp/gobuilder-mips64le/go/src/testing/testing.go:1647 +0x4f0 fp=0xc000030738 sp=0xc000030680 pc=0x120141200
net.TestDialerControlContext(0xc0003621a0)
	/tmp/gobuilder-mips64le/go/src/net/dial_test.go:1032 +0x68 fp=0xc000030768 sp=0xc000030738 pc=0x12021e330
testing.tRunner(0xc0003621a0, 0x1203634c8)

2023-10-21 03:03 linux-mips64le-rtrk go@3839447a net.TestDialerControlContext (log)

panic: test timed out after 12m0s
running tests:
	TestDialerControlContext (11m59s)
	TestDialerControlContext/StreamDial (11m59s)
	TestDialerControlContext/StreamDial/tcp (11m59s)

runtime.gopark(0x120364310, 0xc00039ca68, 0xe, 0x17, 0x2)
	/tmp/gobuilder-mips64le/go/src/runtime/proc.go:400 +0x140 fp=0xc0003a8de8 sp=0xc0003a8dd0 pc=0x120053650
runtime.chanrecv(0xc00039ca10, 0xc0003a8ecf, 0x1)
	/tmp/gobuilder-mips64le/go/src/runtime/chan.go:583 +0x5a4 fp=0xc0003a8e58 sp=0xc0003a8de8 pc=0x12000986c
runtime.chanrecv1(0xc00039ca10, 0xc0003a8ecf)
	/tmp/gobuilder-mips64le/go/src/runtime/chan.go:442 +0x2c fp=0xc0003a8e80 sp=0xc0003a8e58 pc=0x12000926c
testing.(*T).Run(0xc00039fd40, {0x12034c97a, 0xa}, 0x120363ef8)
	/tmp/gobuilder-mips64le/go/src/testing/testing.go:1647 +0x4f0 fp=0xc0003a8f38 sp=0xc0003a8e80 pc=0x120141258
net.TestDialerControlContext(0xc00039fd40)
	/tmp/gobuilder-mips64le/go/src/net/dial_test.go:1032 +0x68 fp=0xc0003a8f68 sp=0xc0003a8f38 pc=0x12021e388
testing.tRunner(0xc00039fd40, 0x120363528)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- builder ~ `linux-mips.*-rtrk` && pkg == "net" && `panic: test timed out`

2024-01-03 17:43 linux-mipsle-rtrk go@7d1b82db net (log)

panic: test timed out after 12m0s
running tests:
	TestDNSSRVUniformity (0s)

goroutine 47 gp=0xd470e8 m=3 mp=0xc36b08 [running]:
panic({0x70c540, 0xc94900})
	/tmp/gobuilder-mips64le/go/src/runtime/panic.go:779 +0x1a4 fp=0xc2f77c sp=0xc2f728 pc=0x451448
testing.(*M).startAlarm.func1()
	/tmp/gobuilder-mips64le/go/src/testing/testing.go:2366 +0x468 fp=0xc2f7ec sp=0xc2f77c pc=0x54daa8
runtime.goexit({})
...
net.TestDNSSRVUniformity(0xf34b08)
	/tmp/gobuilder-mips64le/go/src/net/dnsclient_test.go:49 +0x60 fp=0xf87794 sp=0xf87780 pc=0x627e98
testing.tRunner(0xf34b08, 0x75a754)
	/tmp/gobuilder-mips64le/go/src/testing/testing.go:1689 +0x190 fp=0xf877e0 sp=0xf87794 pc=0x548658
testing.(*T).Run.gowrap1()
	/tmp/gobuilder-mips64le/go/src/testing/testing.go:1742 +0x6c fp=0xf877ec sp=0xf877e0 pc=0x549a5c
runtime.goexit({})
	/tmp/gobuilder-mips64le/go/src/runtime/asm_mipsx.s:641 +0x4 fp=0xf877ec sp=0xf877ec pc=0x49f8d0
created by testing.(*T).Run in goroutine 1
	/tmp/gobuilder-mips64le/go/src/testing/testing.go:1742 +0x478

— watchflakes