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gopherbot opened this issue Mar 10, 2025 · 6 comments
Closed

runtime: TestCgoPprofThreadNoTraceback failures [consistent failure] #72775

gopherbot opened this issue Mar 10, 2025 · 6 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

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@gopherbot
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#!watchflakes
default <- pkg == "runtime" && test == "TestCgoPprofThreadNoTraceback"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2220354218/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.209921194s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2220354218/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3241821988]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: f50716bfeadcd3f08af37a56d2fb3e5ecda98e37
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (9.83s)

— 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 Mar 10, 2025
@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "runtime" && test == "TestCgoPprofThreadNoTraceback"
2025-03-10 16:05 gotip-linux-amd64-asan-clang15 go@e256e640 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2220354218/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.209921194s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2220354218/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3241821988]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: f50716bfeadcd3f08af37a56d2fb3e5ecda98e37
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (9.83s)
2025-03-10 16:05 gotip-linux-amd64-msan-clang15 go@e256e640 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3941171727/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 4.16257781s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3941171727/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof4214312832]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: f50716bfeadcd3f08af37a56d2fb3e5ecda98e37
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (5.47s)
2025-03-10 16:05 gotip-linux-arm64-clang15 go@e256e640 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build551665072/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.835953284s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build551665072/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2206541344]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: ea4aa483ee19b89c4937264aa594d5b683734ee3
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              30ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              40ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.12s)
2025-03-10 16:33 gotip-linux-amd64-asan-clang15 go@fd399716 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3231111545/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 2.462392835s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3231111545/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2055207240]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: a9355569cc33f28dbc3c1dfbe8b71226404de836
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              40ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.94s)
2025-03-10 16:33 gotip-linux-amd64-msan-clang15 go@fd399716 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build1598539504/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 5.300452665s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build1598539504/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1468362909]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: a9355569cc33f28dbc3c1dfbe8b71226404de836
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (6.69s)
2025-03-10 16:33 gotip-linux-arm64-asan-clang15 go@fd399716 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2321762884/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.314273481s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2321762884/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2419006302]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 1d40d594d4a9d2f139738f4d9cc50af7a8d490bf
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.64s)
2025-03-10 16:33 gotip-linux-arm64-clang15 go@fd399716 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build935168832/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2583094238]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 1d40d594d4a9d2f139738f4d9cc50af7a8d490bf
        Type: cpu
        Time: 2025-03-10 16:43:45 UTC
        Duration: 1.20s, Total samples = 820ms (68.16%)
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              40ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.01s)
2025-03-10 18:11 gotip-linux-amd64-asan-clang15 go@2620cc1c runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3280758794/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof10294535]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 2ddced9bd769f52987b3f7e992afe23ae1925fc0
        Type: cpu
        Time: 2025-03-10 18:26:37 UTC
        Duration: 1.10s, Total samples = 790ms (71.71%)
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.41s)
2025-03-10 18:11 gotip-linux-amd64-clang15 go@2620cc1c runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2747708817/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 4.445013126s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2747708817/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof645216912]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 2ddced9bd769f52987b3f7e992afe23ae1925fc0
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (5.74s)
2025-03-10 18:11 gotip-linux-amd64-msan-clang15 go@2620cc1c runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build4002597608/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 4.854770962s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build4002597608/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3039734412]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 2ddced9bd769f52987b3f7e992afe23ae1925fc0
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (8.56s)
2025-03-10 18:11 gotip-linux-arm64-asan-clang15 go@2620cc1c runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build552699477/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 2.288699243s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build552699477/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2624582670]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 5783d84812760e6cd25f928f6f2293328e5ea657
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              40ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (8.31s)
2025-03-10 18:11 gotip-linux-arm64-clang15 go@2620cc1c runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build378448596/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.039853861s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build378448596/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof4153800902]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 5783d84812760e6cd25f928f6f2293328e5ea657
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              70ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              30ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (8.27s)
2025-03-10 21:02 gotip-linux-amd64-clang15 go@895bcf17 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3898891272/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof729066662]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: c94839c3858f4a64401b66dabd22d3dd81176521
        Type: cpu
        Time: 2025-03-10 21:15:52 UTC
        Duration: 1.10s, Total samples = 920ms (83.54%)
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.12s)
2025-03-10 21:02 gotip-linux-arm64-asan-clang15 go@895bcf17 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3556655517/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.283009005s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3556655517/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1706410825]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: b503d0daff784eaeeeccacf8b8a7411128943e33
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.58s)
2025-03-10 21:02 gotip-linux-arm64-clang15 go@895bcf17 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build1023440298/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.857389756s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build1023440298/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1570940339]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: b503d0daff784eaeeeccacf8b8a7411128943e33
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.23s)
2025-03-10 21:03 gotip-linux-amd64-clang15 go@04164e5f runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3576341732/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 3.989463822s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3576341732/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3341631155]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 0c8b026cd4c258bfc9466e4ba819fa1ecb757c52
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
             140ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (5.32s)
2025-03-10 21:03 gotip-linux-amd64-msan-clang15 go@04164e5f runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2078252619/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 4.469148476s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2078252619/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof120937041]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 0c8b026cd4c258bfc9466e4ba819fa1ecb757c52
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (7.13s)
2025-03-10 21:03 gotip-linux-arm64-asan-clang15 go@04164e5f runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3386522441/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.025542777s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3386522441/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1537413851]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 3c270bd07f7ba41f47fb6b70c31bb421dfd47f78
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
             150ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.29s)
2025-03-10 21:03 gotip-linux-arm64-clang15 go@04164e5f runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build46561241/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.233636294s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build46561241/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof248251787]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 3c270bd07f7ba41f47fb6b70c31bb421dfd47f78
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.63s)
2025-03-10 21:19 gotip-linux-amd64-asan-clang15 go@b0e7f95a runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2727641536/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.948833173s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2727641536/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1027794480]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: c9af017ae62510e3678bdbb8bdb6ede5073d6d82
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
             110ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
             190ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.38s)
2025-03-10 21:19 gotip-linux-arm64-clang15 go@b0e7f95a runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build1403162401/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3870841747]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: afb8b4011a9470ea83c9a412c25dbb7725c793ed
        Type: cpu
        Time: 2025-03-10 21:38:17 UTC
        Duration: 1.20s, Total samples = 930ms (77.41%)
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              30ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              50ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (1.31s)
2025-03-10 21:20 gotip-linux-arm64-clang15 go@2611d81d runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3172330713/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 2.708180355s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3172330713/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof663606216]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: aab223d1d09033fadc342a5f67eb5a35d4bb6a15
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.99s)
2025-03-10 21:20 gotip-linux-amd64-asan-clang15 go@01688dac runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build190354215/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.855052257s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build190354215/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1853791656]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 7e4d330111cc51c2d7f0ddc06bcbc69bfeda7279
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.32s)
2025-03-10 21:20 gotip-linux-amd64-msan-clang15 go@01688dac runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3751586698/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 5.556500383s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3751586698/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof707597959]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 7e4d330111cc51c2d7f0ddc06bcbc69bfeda7279
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              80ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (6.95s)
2025-03-10 21:20 gotip-linux-arm64-asan-clang15 go@01688dac runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2996105831/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.099913451s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2996105831/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3228279710]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 8bbf27d757b552bc6152975be40ea7631367d380
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.37s)
2025-03-10 21:20 gotip-linux-arm64-clang15 go@01688dac runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build4035797539/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof982874667]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 8bbf27d757b552bc6152975be40ea7631367d380
        Type: cpu
        Time: 2025-03-10 21:38:12 UTC
        Duration: 1.10s, Total samples = 700ms (63.52%)
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              40ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (1.39s)
2025-03-10 21:20 gotip-linux-amd64-asan-clang15 go@5b4209fe runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2376292431/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 2.339384912s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2376292431/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2191487872]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 186d010873aaa4852cb66273bb1517a82fda2bf7
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.88s)
2025-03-10 21:20 gotip-linux-amd64-msan-clang15 go@5b4209fe runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2994243571/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1633754202]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 186d010873aaa4852cb66273bb1517a82fda2bf7
        Type: cpu
        Time: 2025-03-10 21:38:23 UTC
        Duration: 1.10s, Total samples = 960ms (87.18%)
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (1.31s)
2025-03-10 21:20 gotip-linux-arm64-clang15 go@5b4209fe runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build1796076898/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.673289214s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build1796076898/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2759684059]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 86180627c41348c4c3a1e4967ebd87c1cb6e3ca2
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              50ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.15s)
2025-03-10 21:20 gotip-linux-amd64-msan-clang15 go@4635ad04 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build743295868/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3007936556]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 6227c515db5c9e0055feb9c2c9e22dbfced76473
        Type: cpu
        Time: 2025-03-10 21:40:05 UTC
        Duration: 1.10s, Total samples = 940ms (85.40%)
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.92s)
2025-03-10 21:20 gotip-linux-arm64-asan-clang15 go@4635ad04 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2355637628/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 964.947847ms
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2355637628/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof540840051]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: ef7efa237aae2b0678ab56beb4385a88a3ff3d91
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.21s)
2025-03-10 21:20 gotip-linux-arm64-clang15 go@4635ad04 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2374316952/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.64547614s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2374316952/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3953174001]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: ef7efa237aae2b0678ab56beb4385a88a3ff3d91
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.12s)
2025-03-10 21:20 gotip-linux-arm64-clang15 go@574a9fa6 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3085532661/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3000411534]:
        File: testprogcgo_.exe
        Build ID: cc5e325198da666a0c78039af1971f85519903ae
        Type: cpu
        Time: 2025-03-10 21:39:35 UTC
        Duration: 1.11s, Total samples = 550ms (
(... long comment truncated ...)

— watchflakes

@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Mar 10, 2025
@gopherbot
Copy link
Contributor Author

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "runtime" && test == "TestCgoPprofThreadNoTraceback"
2025-03-10 21:20 gotip-linux-arm64-asan-clang15 go@2611d81d runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3923673020/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.332414725s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3923673020/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3097072603]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: aab223d1d09033fadc342a5f67eb5a35d4bb6a15
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              30ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              80ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.64s)
2025-03-10 22:02 gotip-linux-arm64-asan-clang15 go@2abe5ceb runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3590194863/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.042666969s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3590194863/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3396649754]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: bfabe1b1bc4802c07ca2426c06e205fe7d3c8875
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              30ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.32s)
2025-03-10 22:02 gotip-linux-arm64-clang15 go@2abe5ceb runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build4276477690/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 914.413979ms
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build4276477690/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1919260998]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: bfabe1b1bc4802c07ca2426c06e205fe7d3c8875
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              30ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.22s)

— watchflakes

@gopherbot
Copy link
Contributor Author

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "runtime" && test == "TestCgoPprofThreadNoTraceback"
2025-03-11 00:55 gotip-linux-amd64-asan-clang15 go@2a772a2f runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3391309321/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.859084124s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3391309321/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3382720504]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: dee7ae4f9bab93fc72dc028d82d184601b4c585c
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              50ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.51s)
2025-03-11 00:55 gotip-linux-arm64-asan-clang15 go@2a772a2f runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build14573614/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.296853593s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build14573614/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof789841635]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: cb577a2490cf6c471b144cd2d5d678a52a6f118a
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.62s)
2025-03-11 00:55 gotip-linux-amd64-asan-clang15 go@e3ea8e68 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3119569186/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2990581902]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 873fd11144601b8e0712383d7e27f7dac41e33ef
        Type: cpu
        Time: 2025-03-11 01:08:17 UTC
        Duration: 1.10s, Total samples = 520ms (47.07%)
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              50ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.72s)
2025-03-11 00:55 gotip-linux-amd64-clang15 go@e3ea8e68 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3303828443/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 3.944700664s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3303828443/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2700976118]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 873fd11144601b8e0712383d7e27f7dac41e33ef
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              80ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              60ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (5.35s)
2025-03-11 00:55 gotip-linux-amd64-msan-clang15 go@e3ea8e68 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build39067467/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.789112566s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build39067467/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2752465020]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 873fd11144601b8e0712383d7e27f7dac41e33ef
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.20s)
2025-03-11 00:55 gotip-linux-arm64-clang15 go@e3ea8e68 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build381345165/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.036060874s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build381345165/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1116670820]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 02b0a2dda66a156a930cb5190448a49b41262575
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.53s)

— watchflakes

@gopherbot
Copy link
Contributor Author

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "runtime" && test == "TestCgoPprofThreadNoTraceback"
2025-03-11 04:30 gotip-linux-arm64-clang15 go@2d097e36 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build288136760/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.048819704s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build288136760/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1727780929]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 3c157ddfc7454c6f4455be6a93932e8d8c771117
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              90ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              60ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.29s)

— watchflakes

@gopherbot
Copy link
Contributor Author

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "runtime" && test == "TestCgoPprofThreadNoTraceback"
2025-03-11 04:30 gotip-linux-arm64-asan-clang15 go@2d097e36 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3834367549/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.425003901s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3834367549/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof466881953]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 3c157ddfc7454c6f4455be6a93932e8d8c771117
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              70ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              30ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.88s)

— watchflakes

@gopherbot
Copy link
Contributor Author

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "runtime" && test == "TestCgoPprofThreadNoTraceback"
2025-03-11 12:44 gotip-linux-amd64-asan-clang15 go@e5d3ece3 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2488813794/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.737859402s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2488813794/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2749558539]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: d98c389648c8e60c13eaf6f5bf4400b5a3d2f5a4
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (3.17s)
2025-03-11 12:44 gotip-linux-amd64-clang15 go@e5d3ece3 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2032839574/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof571001977]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: d98c389648c8e60c13eaf6f5bf4400b5a3d2f5a4
        Type: cpu
        Time: 2025-03-11 12:57:51 UTC
        Duration: 1.10s, Total samples = 770ms (69.94%)
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (5.61s)
2025-03-11 12:44 gotip-linux-amd64-msan-clang15 go@e5d3ece3 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build1222330463/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.919312391s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build1222330463/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1279011824]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 6691e698d0ea5af4992571789c9f0cd1e44ead67
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (6.33s)
2025-03-11 12:44 gotip-linux-arm64-asan-clang15 go@e5d3ece3 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build3660451887/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.3377887s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3660451887/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof1307107515]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 39be1036454d50a8c6c3d6b3e30ee767fefc1b82
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
             110ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.68s)
2025-03-11 12:44 gotip-linux-arm64-clang15 go@e5d3ece3 runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build1643089179/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.320499227s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build1643089179/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2214384101]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 39be1036454d50a8c6c3d6b3e30ee767fefc1b82
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.96s)
2025-03-11 12:44 gotip-linux-amd64-clang15 go@ae4c13af runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build1532491203/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.884066545s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build1532491203/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3598121988]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: 993f816d69000c308fef3557bc74dbfad1cade3e
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (9.62s)
2025-03-11 12:44 gotip-linux-arm64-clang15 go@ae4c13af runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build3802095803/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof388081039]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: d5cf02863d765313322794ba5e354bcf6b44dbc4
        Type: cpu
        Time: 2025-03-11 12:55:45 UTC
        Duration: 1.20s, Total samples = 800ms (66.62%)
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.30s)
2025-03-11 12:45 gotip-linux-amd64-clang15 go@a588c6fb runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2238293150/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2711163519]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: a3f86649f75ee1dcadd3f7d38fe3f691f1320a8a
        Type: cpu
        Time: 2025-03-11 12:59:56 UTC
        Duration: 1.10s, Total samples = 780ms (70.87%)
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (1.38s)
2025-03-11 12:45 gotip-linux-arm64-asan-clang15 go@a588c6fb runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build2685582286/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 1.619315909s
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build2685582286/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof3373994865]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: ac8d4f25d5d569323a22c7daa1ea10cdaf865f05
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              20ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.96s)
2025-03-11 12:45 gotip-linux-arm64-clang15 go@a588c6fb runtime.TestCgoPprofThreadNoTraceback (log) 
=== RUN   TestCgoPprofThreadNoTraceback
=== PAUSE TestCgoPprofThreadNoTraceback
=== CONT  TestCgoPprofThreadNoTraceback
    crash_test.go:172: running /home/swarming/.swarming/w/ir/x/w/goroot/bin/go build -o /home/swarming/.swarming/w/ir/x/t/go-build573955852/testprogcgo_.exe 
    crash_test.go:194: built testprogcgo_ in 860.936653ms
    crash_cgo_test.go:336: [/home/swarming/.swarming/w/ir/x/w/goroot/bin/go tool pprof -tagignore=ignore -traces /home/swarming/.swarming/w/ir/x/t/go-build573955852/testprogcgo_.exe /home/swarming/.swarming/w/ir/x/t/prof2505737635]:
        TagIgnore expression matched no samples
        File: testprogcgo_.exe
        Build ID: ac8d4f25d5d569323a22c7daa1ea10cdaf865f05
        Type: cpu
...
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              30ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
              10ms   [testprogcgo_.exe]
                     runtime._ExternalCode
        -----------+-------------------------------------------------------
    crash_cgo_test.go:344: cpuHogThread traceback missing.
--- FAIL: TestCgoPprofThreadNoTraceback (2.28s)

— watchflakes

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compiler/runtime Issues related to the Go compiler and/or runtime. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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@ianlancetaylor @gopherbot