runtime: frequent TestCrashDumpsAllThreads failures on `linux/s390x`

[bcmills]

#!watchflakes
post <- goarch == "s390x" && pkg == "runtime" && test == "TestCrashDumpsAllThreads"

Go version

ca80411

What operating system and processor architecture are you using (go env)?

linux-s390x-ibm-race at ca804118b1ff4ea6cd0b83808e140671d7e10f6f

:: Running /data/golang/workdir/go/src/make.bash with args ["/data/golang/workdir/go/src/make.bash" "-force"] and env ["LANG=en_US.UTF-8" "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin" "HOME=/root" "LOGNAME=root" "USER=root" "SHELL=/bin/sh" "INVOCATION_ID=5ad2b81f504d4d4493366f364d13f297" "JOURNAL_STREAM=9:358624446" "META_BUILDLET_BINARY_URL=https://storage.googleapis.com/go-builder-data/buildlet.linux-s390x" "GO_STAGE0_NET_DELAY=0s" "GO_STAGE0_DL_DELAY=100ms" "WORKDIR=/data/golang/workdir" "GOROOT_BOOTSTRAP=/data/golang/workdir/go1.4" "GO_BUILDER_NAME=linux-s390x-ibm-race" "GO_BUILDER_FLAKY_NET=1" "GO_TEST_TIMEOUT_SCALE=5" "GOBIN=" "TMPDIR=/data/golang/workdir/tmp" "GOCACHE=/data/golang/workdir/gocache" "GOPLSCACHE=/data/golang/workdir/goplscache" "PWD=/data/golang/workdir/go/src"] in dir /data/golang/workdir/go/src

What did you do?

https://build.golang.org/log/5e29be06bbb7a8a4923d83a58972aa2a10677a94

What did you expect to see?

All tests passing.

What did you see instead?

--- FAIL: TestCrashDumpsAllThreads (0.11s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
…
FAIL
FAIL	runtime	46.511s

(attn @golang/s390x)

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- goarch == "s390x" && pkg == "runtime" && test == "TestCrashDumpsAllThreads"

2023-12-02 03:15 linux-s390x-ibm-race go@de5b418b runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.80s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x100370 m=0 sigcode=0

        goroutine 21 gp=0xc000084d00 m=0 mp=0x20cf80 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x100370
...
        r2   0xc000052850	r3   0x80
        r4   0x0	r5   0x0
        r6   0x0	r7   0x0
        r8   0x4	r9   0x0
        r10  0x0	r11  0x10
        r12  0x1	r13  0xc0000049c0
        r14  0x510e2	r15  0xc00006dd28
        pc   0x94098	link 0x510e2

        -----

2023-12-04 18:17 linux-s390x-ibm-race go@92b6cdeb runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.79s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x100370 m=0 sigcode=0

        goroutine 9 gp=0xc000005ba0 m=0 mp=0x20cf80 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x100370
...
        r2   0xfffffffffffffffc	r3   0x80
        r4   0x0	r5   0xc000025ee0
        r6   0x0	r7   0x0
        r8   0xc0000044e0	r9   0x0
        r10  0x3c0000000	r11  0x0
        r12  0x148400	r13  0xc0000044e0
        r14  0x51178	r15  0xc000025ea8
        pc   0x9409a	link 0x51178

        -----

2023-12-04 18:40 linux-s390x-ibm go@1926a0b5 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.42s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x100370 m=0 sigcode=0

        goroutine 21 gp=0xc000084d00 m=0 mp=0x20cf80 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x100370
...
        r2   0x0	r3   0xc000084d00
        r4   0x20cf80	r5   0x0
        r6   0x100300	r7   0xc000049800
        r8   0x20cf80	r9   0x0
        r10  0x0	r11  0x11eb851eb8424b9d
        r12  0xc0000ae078	r13  0xc000084d00
        r14  0x10035e	r15  0xc000049fc8
        pc   0x100370	link 0x10035e

        -----

2023-12-04 18:40 linux-s390x-ibm-race go@1926a0b5 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.14s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x100370 m=0 sigcode=0

        goroutine 21 gp=0xc0001289c0 m=0 mp=0x20cf80 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x100370
...
        r2   0x0	r3   0xc000052708
        r4   0x1	r5   0xc000000000
        r6   0x0	r7   0x1
        r8   0xc0001284e0	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc0000487b0	r13  0xc0001284e0
        r14  0x10035e	r15  0xc0000487c8
        pc   0x100370	link 0x10035e

        -----

2023-12-05 20:34 linux-s390x-ibm-race go@c29444ef runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (1.06s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x101170 m=0 sigcode=0

        goroutine 9 gp=0xc0000ac000 m=0 mp=0x20cfc0 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x101170
...
        r2   0x0	r3   0xc0000ac000
        r4   0x20cfc0	r5   0x0
        r6   0x101100	r7   0xc00004f800
        r8   0x20cfc0	r9   0x0
        r10  0x0	r11  0x11eb851eb842f56d
        r12  0xc00000e090	r13  0xc0000ac000
        r14  0x10115e	r15  0xc00004ffc8
        pc   0x101170	link 0x10115e

        -----

2023-12-05 22:42 linux-s390x-ibm-race go@53393062 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.33s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x101170 m=0 sigcode=0

        goroutine 21 gp=0xc000082d00 m=0 mp=0x20cfc0 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x101170
...
        r2   0xfffffffffffffffc	r3   0x80
        r4   0x0	r5   0xc000025ee0
        r6   0x0	r7   0x0
        r8   0xc0000044e0	r9   0x0
        r10  0x3c0000000	r11  0x0
        r12  0x1486b0	r13  0xc0000044e0
        r14  0x51b38	r15  0xc000025ea8
        pc   0x94e9a	link 0x51b38

        -----

2023-12-05 22:42 linux-s390x-ibm go@ba519019 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.10s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x101170 m=0 sigcode=0

        goroutine 21 gp=0xc000082d00 m=0 mp=0x20cfc0 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x101170
...
        r2   0x0	r3   0xc000082d00
        r4   0x20cfc0	r5   0x0
        r6   0x101100	r7   0xc000049800
        r8   0x20cfc0	r9   0x0
        r10  0x0	r11  0xfd70a3d70a2c4b9d
        r12  0xc0000ac078	r13  0xc000082d00
        r14  0x10115e	r15  0xc000049fc8
        pc   0x101170	link 0x10115e

        -----

2023-12-06 13:10 linux-s390x-ibm-race go@e4182589 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.30s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x101170 m=0 sigcode=0

        goroutine 21 gp=0xc000082d00 m=0 mp=0x20cfc0 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x101170
...
        r2   0x0	r3   0xc000082d00
        r4   0x20cfc0	r5   0x0
        r6   0x101100	r7   0xc000049800
        r8   0x20cfc0	r9   0x0
        r10  0x0	r11  0xfd70a3d70a2c4b9d
        r12  0xc0000ac078	r13  0xc000082d00
        r14  0x10115e	r15  0xc000049fc8
        pc   0x101170	link 0x10115e

        -----

2023-12-06 19:29 linux-s390x-ibm-race go@7b5a3733 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.59s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x101170 m=0 sigcode=0

        goroutine 9 gp=0xc000005ba0 m=0 mp=0x20cfc0 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x101170
...
        r2   0x0	r3   0xc000005860
        r4   0xc000052808	r5   0x0
        r6   0x101100	r7   0xc00004e800
        r8   0xc000005860	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc00000e060	r13  0xc000005860
        r14  0x10115e	r15  0xc00004efc8
        pc   0x101170	link 0x10115e

        -----

2023-12-06 21:39 linux-s390x-ibm-race go@71fc9d4d runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.81s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011c0
...
        r2   0x0	r3   0xc000005880
        r4   0xc000052808	r5   0x0
        r6   0x101150	r7   0xc00004f000
        r8   0xc000005880	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc00000e078	r13  0xc000005880
        r14  0x1011ae	r15  0xc00004f7c8
        pc   0x1011c0	link 0x1011ae

        -----

2023-12-06 21:50 linux-s390x-ibm go@3b8b550a runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.35s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 21 gp=0xc000128700 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011c0
...
        r2   0x0	r3   0xc000128700
        r4   0x20d000	r5   0x0
        r6   0x101150	r7   0xc000049800
        r8   0x20d000	r9   0x0
        r10  0x0	r11  0x1c28f5c28f4aeb9d
        r12  0xc00011a078	r13  0xc000128700
        r14  0x1011ae	r15  0xc000049fc8
        pc   0x1011c0	link 0x1011ae

        -----

2023-12-06 21:50 linux-s390x-ibm go@ff9269ee runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (1.35s)
    crash_unix_test.go:145: found 3 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 21 gp=0xc000082a80 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011c0
...
        r2   0x0	r3   0xc000082700
        r4   0xc000053008	r5   0x0
        r6   0x101150	r7   0xc000048800
        r8   0xc000082700	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc0000ac048	r13  0xc000082700
        r14  0x1011ae	r15  0xc000048fc8
        pc   0x1011c0	link 0x1011ae

        -----

2023-12-06 21:50 linux-s390x-ibm go@e914671f runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (1.56s)
    crash_unix_test.go:145: found 3 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 21 gp=0xc000092a80 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011c0
...
        r2   0x0	r3   0xc000053808
        r4   0x1	r5   0xc000000000
        r6   0x0	r7   0x1
        r8   0xc000092540	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc0000487b0	r13  0xc000092540
        r14  0x1011ae	r15  0xc0000487c8
        pc   0x1011c0	link 0x1011ae

        -----

2023-12-06 21:59 linux-s390x-ibm go@fecaea97 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.55s)
    crash_unix_test.go:145: found 3 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011c0
...
        r2   0x0	r3   0xc000005880
        r4   0xc000053008	r5   0x0
        r6   0x101150	r7   0xc00004f000
        r8   0xc000005880	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc00000e078	r13  0xc000005880
        r14  0x1011ae	r15  0xc00004f7c8
        pc   0x1011c0	link 0x1011ae

        -----

2023-12-06 23:34 linux-s390x-ibm go@2b442575 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.48s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 21 gp=0xc000128700 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011c0
...
        r2   0x0	r3   0x0
        r4   0x14	r5   0x0
        r6   0x0	r7   0x1
        r8   0xf7222018fcb7f2b0	r9   0x0
        r10  0x14	r11  0x0
        r12  0x148850	r13  0xc000004540
        r14  0x692ce	r15  0xc000025f30
        pc   0x94926	link 0x692ce

        -----

2023-12-07 01:05 linux-s390x-ibm go@5e724ccb runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (1.30s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 21 gp=0xc000082a80 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011c0
...
        r2   0x0	r3   0xc0000828c0
        r4   0xc000052808	r5   0x0
        r6   0x101150	r7   0xc000049000
        r8   0xc0000828c0	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc0000ac060	r13  0xc0000828c0
        r14  0x1011ae	r15  0xc0000497c8
        pc   0x1011c0	link 0x1011ae

        -----

2023-12-07 01:05 linux-s390x-ibm-race go@5e724ccb runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (1.17s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 21 gp=0xc000128700 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011c0
...
        r2   0xfffffffffffffffc	r3   0x80
        r4   0x0	r5   0xc000025ee0
        r6   0x0	r7   0x0
        r8   0xc0001861c0	r9   0x0
        r10  0x3c0000000	r11  0x0
        r12  0xc000025e08	r13  0xc000004540
        r14  0x51b38	r15  0xc000025ea8
        pc   0x94eea	link 0x51b38

        -----

2023-12-08 00:29 linux-s390x-ibm-race go@788a2277 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.14s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011c0
...
        -----

        SIGQUIT: quit
        PC=0x94926 m=1 sigcode=0

        goroutine 0 gp=0xc000004540 m=1 mp=0xc000052008 [idle]:
        runtime.usleep(0x14)
        	/data/golang/workdir/go/src/runtime/sys_linux_s390x.s:125 +0x56 fp=0xc000025f48 sp=0xc000025f30 pc=0x94926
        runtime.sysmon()
        	/data/golang/workdir/go/src/runtime/proc.go:5956 +0xde fp=0xc000025fb8 sp=0xc000025f48 pc=0x692ce

2023-12-08 00:50 linux-s390x-ibm-race go@4bf1ca4b runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.65s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011c0
...
        r2   0x0	r3   0xc000005880
        r4   0xc000052808	r5   0x0
        r6   0x101150	r7   0xc00004f000
        r8   0xc000005880	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc00000e078	r13  0xc000005880
        r14  0x1011ae	r15  0xc00004f7c8
        pc   0x1011c0	link 0x1011ae

        -----

2023-12-08 03:28 linux-s390x-ibm go@78b42a53 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.65s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 21 gp=0xc000082a80 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011c0
...
        r2   0xc000053148	r3   0x80
        r4   0x0	r5   0x0
        r6   0x0	r7   0x0
        r8   0x8fc100f2bb70b23a	r9   0x1325c0
        r10  0x0	r11  0x24434fd
        r12  0x1487d0	r13  0xc000005180
        r14  0x51aa2	r15  0xc000067e80
        pc   0x94ee8	link 0x51aa2

        -----

2023-12-09 21:47 linux-s390x-ibm-race go@ca804118 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.11s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011c0
...
        r2   0x0	r3   0xc000053008
        r4   0x1	r5   0xc000000000
        r6   0x0	r7   0x1
        r8   0xc0001021c0	r9   0x91d00
        r10  0x0	r11  0x1
        r12  0xc00004e7b0	r13  0xc000005500
        r14  0x1011ae	r15  0xc00004e7c8
        pc   0x1011c0	link 0x1011ae

        -----

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- goarch == "s390x" && pkg == "runtime" && test == "TestCrashDumpsAllThreads"

2023-12-09 21:48 linux-s390x-ibm go@46ea4ab5 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.43s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011c0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011c0
...
        r2   0x0	r3   0xc000052808
        r4   0x1	r5   0xc000000000
        r6   0x0	r7   0x1
        r8   0xc000005500	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc00004e7b0	r13  0xc000005500
        r14  0x1011ae	r15  0xc00004e7c8
        pc   0x1011c0	link 0x1011ae

        -----

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- goarch == "s390x" && pkg == "runtime" && test == "TestCrashDumpsAllThreads"

2023-12-11 19:32 linux-s390x-ibm go@c844970f runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.12s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011a0
...
        r2   0x0	r3   0xc000005a40
        r4   0x20d000	r5   0x0
        r6   0x101130	r7   0xc00004f800
        r8   0x20d000	r9   0x0
        r10  0x0	r11  0xd47ae147ae03db9d
        r12  0xc00000e090	r13  0xc000005a40
        r14  0x10118e	r15  0xc00004ffc8
        pc   0x1011a0	link 0x10118e

        -----

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- goarch == "s390x" && pkg == "runtime" && test == "TestCrashDumpsAllThreads"

2023-12-11 21:37 linux-s390x-ibm go@c22781cb runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.22s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 21 gp=0xc000092a80 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011a0
...
        r2   0x0	r3   0xc000092a80
        r4   0x20d000	r5   0x0
        r6   0x101130	r7   0xc000049800
        r8   0x20d000	r9   0x0
        r10  0x0	r11  0xdeb851eb850edb9d
        r12  0xc0000b4078	r13  0xc000092a80
        r14  0x10118e	r15  0xc000049fc8
        pc   0x1011a0	link 0x10118e

        -----

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- goarch == "s390x" && pkg == "runtime" && test == "TestCrashDumpsAllThreads"

2023-12-11 20:30 linux-s390x-ibm-race go@78dcb532 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.44s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 21 gp=0xc000082a80 m=0 mp=0x20d000 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011a0
...
        r2   0x0	r3   0xc000082700
        r4   0xc000052808	r5   0x0
        r6   0x101130	r7   0xc000048800
        r8   0xc0001021c0	r9   0x91ce0
        r10  0x0	r11  0x599010020470
        r12  0xc0000ac048	r13  0xc000082700
        r14  0x10118e	r15  0xc000048fc8
        pc   0x1011a0	link 0x10118e

        -----

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- goarch == "s390x" && pkg == "runtime" && test == "TestCrashDumpsAllThreads"

2023-12-12 19:42 linux-s390x-ibm-race go@c2079deb runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.56s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d040 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011a0
...
        r2   0x0	r3   0xc000052808
        r4   0x1	r5   0xc000000000
        r6   0x0	r7   0x1
        r8   0xc000005500	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc00004e7b0	r13  0xc000005500
        r14  0x10118e	r15  0xc00004e7c8
        pc   0x1011a0	link 0x10118e

        -----

2023-12-12 22:10 linux-s390x-ibm-race go@dce7f335 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.87s)
    crash_unix_test.go:145: found 3 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 21 gp=0xc000092a80 m=0 mp=0x20d040 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011a0
...
        r2   0xc000053948	r3   0x80
        r4   0x0	r5   0x0
        r6   0x0	r7   0x0
        r8   0xc000005500	r9   0x91ce0
        r10  0x0	r11  0x1
        r12  0x0	r13  0xc000005500
        r14  0x51a82	r15  0xc00008fd48
        pc   0x94ec8	link 0x51a82

        -----

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- goarch == "s390x" && pkg == "runtime" && test == "TestCrashDumpsAllThreads"

2023-12-12 16:13 linux-s390x-ibm go@e70d3433 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.36s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d040 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011a0
...
        r2   0x0	r3   0xc000052808
        r4   0x1	r5   0xc000000000
        r6   0xc000052808	r7   0xc00006bef0
        r8   0xc000005500	r9   0x0
        r10  0x0	r11  0x0
        r12  0xc00004e7b0	r13  0xc000005500
        r14  0x10118e	r15  0xc00004e7c8
        pc   0x101196	link 0x10118e

        -----

2023-12-12 16:45 linux-s390x-ibm go@7baaa20e runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.48s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 21 gp=0xc000092a80 m=0 mp=0x20d040 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011a0
...
        r2   0x0	r3   0xc000092a80
        r4   0x20d040	r5   0x0
        r6   0x101130	r7   0xc000049800
        r8   0x20d040	r9   0x0
        r10  0x0	r11  0xdeb851eb850edb9d
        r12  0xc0000b4078	r13  0xc000092a80
        r14  0x10118e	r15  0xc000049fc8
        pc   0x1011a0	link 0x10118e

        -----

2023-12-12 17:12 linux-s390x-ibm go@ce43fb80 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.48s)
    crash_unix_test.go:145: found 3 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 21 gp=0xc000082a80 m=0 mp=0x20d040 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011a0
...
        r2   0x0	r3   0xc000053008
        r4   0x1	r5   0x0
        r6   0x0	r7   0x0
        r8   0xc000082540	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc0000487b0	r13  0xc000082540
        r14  0x10118e	r15  0xc0000487c8
        pc   0x1011a0	link 0x10118e

        -----

2023-12-12 18:40 linux-s390x-ibm go@699807f3 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (1.24s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d040 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011a0
...
        r2   0xfffffffffffffffc	r3   0x80
        r4   0x0	r5   0xc000025ee0
        r6   0x0	r7   0x0
        r8   0x4eaccdfd04f87670	r9   0x0
        r10  0x3c0000000	r11  0x0
        r12  0x148860	r13  0xc000004540
        r14  0x51b18	r15  0xc000025ea8
        pc   0x94eca	link 0x51b18

        -----

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- goarch == "s390x" && pkg == "runtime" && test == "TestCrashDumpsAllThreads"

2023-12-12 16:29 linux-s390x-ibm-race go@3f442ab0 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.16s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d040 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011a0
...
        r2   0x0	r3   0xc000005a40
        r4   0x20d040	r5   0x0
        r6   0x101130	r7   0xc00004f800
        r8   0x20d040	r9   0x0
        r10  0x0	r11  0x4f5c28f5c280bb9d
        r12  0xc00000e090	r13  0xc000005a40
        r14  0x10118e	r15  0xc00004ffc8
        pc   0x1011a0	link 0x10118e

        -----

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- goarch == "s390x" && pkg == "runtime" && test == "TestCrashDumpsAllThreads"

2023-12-13 00:22 linux-s390x-ibm-race go@400e24a8 runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (0.20s)
    crash_unix_test.go:145: found 2 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 9 gp=0xc000005a40 m=0 mp=0x20d040 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc00004ffd8 sp=0xc00004ffc8 pc=0x1011a0
...
        r2   0x0	r3   0xc000052808
        r4   0x1	r5   0xc000000000
        r6   0xc000052808	r7   0xc00006bef0
        r8   0xc000005500	r9   0x0
        r10  0x0	r11  0xc000010158
        r12  0xc00004e7b0	r13  0xc000005500
        r14  0x10118e	r15  0xc00004e7c8
        pc   0x1011a0	link 0x10118e

        -----

2023-12-13 00:46 linux-s390x-ibm-race go@7cac742f runtime.TestCrashDumpsAllThreads (log)

--- FAIL: TestCrashDumpsAllThreads (2.30s)
    crash_unix_test.go:145: found 1 instances of main.crashDumpsAllThreadsLoop; expected 4
    crash_unix_test.go:146: SIGQUIT: quit
        PC=0x1011a0 m=0 sigcode=0

        goroutine 21 gp=0xc000082a80 m=0 mp=0x20d040 [running]:
        main.crashDumpsAllThreadsLoop(...)
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:44
        main.CrashDumpsAllThreads.gowrap1()
        	/data/golang/workdir/go/src/runtime/testdata/testprog/crashdump.go:24 +0x70 fp=0xc000049fd8 sp=0xc000049fc8 pc=0x1011a0
...
        r2   0x0	r3   0xc000082a80
        r4   0x20d040	r5   0x0
        r6   0x101130	r7   0xc000049800
        r8   0x20d040	r9   0x0
        r10  0x0	r11  0xa147ae147ad19b9d
        r12  0xc0000ac078	r13  0xc000082a80
        r14  0x10118e	r15  0xc000049fc8
        pc   0x1011a0	link 0x10118e

        -----

— watchflakes