Golang runtime: TestGdb* failures - Aurora Blog|java/go/python

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb` && output !~ `nosplit stack over 800 byte limit`

Issue created automatically to collect these failures.

Example (log):

panic: test timed out after 10m0s
running tests:
    TestGdbPythonCgo (9m38s)

syscall.Syscall6(0x0?, 0x14ea04?, 0xc?, 0x2?, 0x1?, 0xc0001a4580?, 0xc00009e3d0?)
    /workdir/go/src/syscall/syscall_linux.go:91 +0x28 fp=0xc0000df6b8 sp=0xc0000df620 pc=0xa10b8
os.(*Process).blockUntilWaitable(0xc0013605d0)
    /workdir/go/src/os/wait_waitid.go:32 +0x8c fp=0xc0000df7a0 sp=0xc0000df6b8 pc=0xc7f1c
os.(*Process).wait(0xc0013605d0)
    /workdir/go/src/os/exec_unix.go:22 +0x3c fp=0xc0000df820 sp=0xc0000df7a0 pc=0xc223c
os.(*Process).Wait(...)
    /workdir/go/src/os/exec.go:132
os/exec.(*Cmd).Wait(0xc0001a4580)
    /workdir/go/src/os/exec/exec.go:890 +0x54 fp=0xc0000df8b8 sp=0xc0000df820 pc=0x14f284
os/exec.(*Cmd).Run(0x58?)
    /workdir/go/src/os/exec/exec.go:590 +0x50 fp=0xc0000df8e8 sp=0xc0000df8b8 pc=0x14e080
os/exec.(*Cmd).CombinedOutput(0xc0001a4580)
    /workdir/go/src/os/exec/exec.go:1005 +0xb8 fp=0xc0000df940 sp=0xc0000df8e8 pc=0x14fb98
runtime_test.testGdbPython(0xc0002cb520, 0x1)
    /workdir/go/src/runtime/runtime-gdb_test.go:272 +0x1d84 fp=0xc0000dfef0 sp=0xc0000df940 pc=0x33db94
runtime_test.TestGdbPythonCgo(0x4a96f8?)
    /workdir/go/src/runtime/runtime-gdb_test.go:167 +0x68 fp=0xc0000dff30 sp=0xc0000dfef0 pc=0x33bdf8
testing.tRunner(0xc0002cb520, 0x4473e8)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "runtime" && test == "TestGdbPythonCgo"

2023-03-06 19:22 linux-ppc64le-buildlet go@5987f3c2 runtime.TestGdbPythonCgo (log)

panic: test timed out after 10m0s running tests: TestGdbPythonCgo (9m38s) syscall.Syscall6(0x0?, 0x14ea04?, 0xc?, 0x2?, 0x1?, 0xc0001a4580?, 0xc00009e3d0?) /workdir/go/src/syscall/syscall_linux.go:91 +0x28 fp=0xc0000df6b8 sp=0xc0000df620 pc=0xa10b8 os.(*Process).blockUntilWaitable(0xc0013605d0) /workdir/go/src/os/wait_waitid.go:32 +0x8c fp=0xc0000df7a0 sp=0xc0000df6b8 pc=0xc7f1c os.(*Process).wait(0xc0013605d0) /workdir/go/src/os/exec_unix.go:22 +0x3c fp=0xc0000df820 sp=0xc0000df7a0 pc=0xc223c os.(*Process).Wait(...) /workdir/go/src/os/exec.go:132 os/exec.(*Cmd).Wait(0xc0001a4580) /workdir/go/src/os/exec/exec.go:890 +0x54 fp=0xc0000df8b8 sp=0xc0000df820 pc=0x14f284 os/exec.(*Cmd).Run(0x58?) /workdir/go/src/os/exec/exec.go:590 +0x50 fp=0xc0000df8e8 sp=0xc0000df8b8 pc=0x14e080 os/exec.(*Cmd).CombinedOutput(0xc0001a4580) /workdir/go/src/os/exec/exec.go:1005 +0xb8 fp=0xc0000df940 sp=0xc0000df8e8 pc=0x14fb98 runtime_test.testGdbPython(0xc0002cb520, 0x1) /workdir/go/src/runtime/runtime-gdb_test.go:272 +0x1d84 fp=0xc0000dfef0 sp=0xc0000df940 pc=0x33db94 runtime_test.TestGdbPythonCgo(0x4a96f8?) /workdir/go/src/runtime/runtime-gdb_test.go:167 +0x68 fp=0xc0000dff30 sp=0xc0000dfef0 pc=0x33bdf8 testing.tRunner(0xc0002cb520, 0x4473e8)

— watchflakes

Comment From: bcmills

See previously: - #51694 - #37794 - #35743 - #20821

Comment From: thanm

The GDB version on linux-ppc64le-buildlet is elderly but not ancient:

$ gdb --version
GNU gdb (Ubuntu 9.2-0ubuntu1~20.04.1) 9.2
...
$

for what that's worth.

Comment From: laboger

The GDB version on linux-ppc64-buildlet is elderly but not ancient:

$ gdb --version GNU gdb (Ubuntu 9.2-0ubuntu1~20.04.1) 9.2 ... $

for what that's worth.

This test would be skipped on the linux-ppc64-buildlet since linux/ppc64 does not support cgo. You'd want to check the linux-ppc64le-buildlet.

Comment From: thanm

Right, sorry, I was indeed looking at linux-ppc64le-buildlet (typo in my comment).

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "runtime" && test ~ `TestGdbPython`

2023-10-10 00:25 linux-ppc64le-power9osu go@b201cf4a runtime.TestGdbPython (log)

panic: test timed out after 6m0s running tests: TestGdbPython (5m13s) syscall.Syscall6(0x110, 0x1, 0xc223, 0xc0001d5740, 0x1000004, 0x0, 0x0) /workdir/go/src/syscall/syscall_linux.go:91 +0x28 fp=0xc0001d56e8 sp=0xc0001d5678 pc=0xabb78 os.(*Process).blockUntilWaitable(0xc00040ec90) /workdir/go/src/os/wait_waitid.go:32 +0x8c fp=0xc0001d57d0 sp=0xc0001d56e8 pc=0xd592c os.(*Process).wait(0xc00040ec90) /workdir/go/src/os/exec_unix.go:22 +0x3c fp=0xc0001d5850 sp=0xc0001d57d0 pc=0xcfb5c os.(*Process).Wait(...) /workdir/go/src/os/exec.go:134 os/exec.(*Cmd).Wait(0xc0005f2f20) /workdir/go/src/os/exec/exec.go:897 +0x54 fp=0xc0001d58e0 sp=0xc0001d5850 pc=0x164ab4 os/exec.(*Cmd).Run(0xc0005f2f20) /workdir/go/src/os/exec/exec.go:607 +0x50 fp=0xc0001d5908 sp=0xc0001d58e0 pc=0x1638e0 os/exec.(*Cmd).CombinedOutput(0xc0005f2f20) /workdir/go/src/os/exec/exec.go:1012 +0xa0 fp=0xc0001d5960 sp=0xc0001d5908 pc=0x165390 runtime_test.testGdbPython(0xc0002849c0, 0x0) /workdir/go/src/runtime/runtime-gdb_test.go:272 +0xdec fp=0xc0001d5f00 sp=0xc0001d5960 pc=0x38580c runtime_test.TestGdbPython(0x0?) /workdir/go/src/runtime/runtime-gdb_test.go:160 +0x30 fp=0xc0001d5f30 sp=0xc0001d5f00 pc=0x384990 testing.tRunner(0xc0002849c0, 0x4a5aa0)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "runtime" && test ~ `TestGdbPython`

2025-03-12 00:24 gotip-linux-ppc64le_power8 go@ca19f987 runtime.TestGdbPythonCgo (log)

=== RUN TestGdbPythonCgo === PAUSE TestGdbPythonCgo === CONT TestGdbPythonCgo runtime-gdb_test.go:79: gdb version 9.2 runtime-gdb_test.go:339: gdb output: Dwarf Error: DW_FORM_addrx found in non-DWO CU [in module /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo1072121291/001/a.exe] Loading Go Runtime support. Loading Go Runtime support. No symbol table is loaded. Use the "file" command. Make breakpoint pending on future shared library load? (y or [n]) [answered N; input not from terminal] ... for ptr in SliceValue(gdb.parse_and_eval("'runtime.allgs'")): gdb.error: 'runtime.allgs' has unknown type; cast it to its declared type Error occurred in Python: 'runtime.allgs' has unknown type; cast it to its declared type END runtime-gdb_test.go:354: info goroutines failed: Traceback (most recent call last): File "/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/runtime-gdb.py", line 567, in invoke for ptr in SliceValue(gdb.parse_and_eval("'runtime.allgs'")): gdb.error: 'runtime.allgs' has unknown type; cast it to its declared type Error occurred in Python: 'runtime.allgs' has unknown type; cast it to its declared type --- FAIL: TestGdbPythonCgo (3.54s)

2025-03-12 00:59 gotip-linux-ppc64le_power8 go@17b9c9f2 runtime.TestGdbPythonCgo (log)

=== RUN TestGdbPythonCgo === PAUSE TestGdbPythonCgo === CONT TestGdbPythonCgo runtime-gdb_test.go:79: gdb version 9.2 runtime-gdb_test.go:339: gdb output: Dwarf Error: DW_FORM_addrx found in non-DWO CU [in module /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo2931442404/001/a.exe] Loading Go Runtime support. Loading Go Runtime support. No symbol table is loaded. Use the "file" command. Make breakpoint pending on future shared library load? (y or [n]) [answered N; input not from terminal] ... for ptr in SliceValue(gdb.parse_and_eval("'runtime.allgs'")): gdb.error: 'runtime.allgs' has unknown type; cast it to its declared type Error occurred in Python: 'runtime.allgs' has unknown type; cast it to its declared type END runtime-gdb_test.go:354: info goroutines failed: Traceback (most recent call last): File "/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/runtime-gdb.py", line 567, in invoke for ptr in SliceValue(gdb.parse_and_eval("'runtime.allgs'")): gdb.error: 'runtime.allgs' has unknown type; cast it to its declared type Error occurred in Python: 'runtime.allgs' has unknown type; cast it to its declared type --- FAIL: TestGdbPythonCgo (7.81s)

2025-03-12 01:16 gotip-linux-ppc64le_power8 go@43648931 runtime.TestGdbPythonCgo (log)

=== RUN TestGdbPythonCgo === PAUSE TestGdbPythonCgo === CONT TestGdbPythonCgo runtime-gdb_test.go:79: gdb version 9.2 runtime-gdb_test.go:339: gdb output: Dwarf Error: DW_FORM_addrx found in non-DWO CU [in module /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo888889645/001/a.exe] Loading Go Runtime support. Loading Go Runtime support. No symbol table is loaded. Use the "file" command. Make breakpoint pending on future shared library load? (y or [n]) [answered N; input not from terminal] ... for ptr in SliceValue(gdb.parse_and_eval("'runtime.allgs'")): gdb.error: 'runtime.allgs' has unknown type; cast it to its declared type Error occurred in Python: 'runtime.allgs' has unknown type; cast it to its declared type END runtime-gdb_test.go:354: info goroutines failed: Traceback (most recent call last): File "/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/runtime-gdb.py", line 567, in invoke for ptr in SliceValue(gdb.parse_and_eval("'runtime.allgs'")): gdb.error: 'runtime.allgs' has unknown type; cast it to its declared type Error occurred in Python: 'runtime.allgs' has unknown type; cast it to its declared type --- FAIL: TestGdbPythonCgo (2.60s)

2025-03-12 01:36 gotip-linux-ppc64le_power8 go@bcd0ebbd runtime.TestGdbPythonCgo (log)

=== RUN TestGdbPythonCgo === PAUSE TestGdbPythonCgo === CONT TestGdbPythonCgo runtime-gdb_test.go:79: gdb version 9.2 runtime-gdb_test.go:339: gdb output: Dwarf Error: DW_FORM_addrx found in non-DWO CU [in module /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo3957906612/001/a.exe] Loading Go Runtime support. Loading Go Runtime support. No symbol table is loaded. Use the "file" command. Make breakpoint pending on future shared library load? (y or [n]) [answered N; input not from terminal] ... for ptr in SliceValue(gdb.parse_and_eval("'runtime.allgs'")): gdb.error: 'runtime.allgs' has unknown type; cast it to its declared type Error occurred in Python: 'runtime.allgs' has unknown type; cast it to its declared type END runtime-gdb_test.go:354: info goroutines failed: Traceback (most recent call last): File "/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/runtime-gdb.py", line 567, in invoke for ptr in SliceValue(gdb.parse_and_eval("'runtime.allgs'")): gdb.error: 'runtime.allgs' has unknown type; cast it to its declared type Error occurred in Python: 'runtime.allgs' has unknown type; cast it to its declared type --- FAIL: TestGdbPythonCgo (4.95s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-16 17:05 gotip-linux-amd64-longtest go@ea00461b runtime:cpu4.TestGdbPython (log)

2025-06-16 17:05 gotip-linux-amd64-longtest-noswissmap go@ea00461b runtime:cpu4.TestGdbPython (log)

2025-06-18 18:23 gotip-linux-amd64-longtest-noswissmap go@c6ac7362 runtime:cpu4.TestGdbPython (log)

2025-06-18 18:34 gotip-linux-amd64-longtest go@4c756729 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-18 19:30 gotip-linux-amd64-longtest-aliastypeparams go@8552bcf7 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-20 18:28 gotip-linux-amd64-longtest-aliastypeparams go@3bf1eecb runtime:cpu4.TestGdbPythonCgo (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-20 18:28 gotip-linux-amd64-longtest-noswissmap go@3bf1eecb runtime:cpu4.TestGdbPythonCgo (log)

2025-06-20 19:29 gotip-linux-amd64-longtest go@49cdf0c4 runtime:cpu4.TestGdbPython (log)

2025-06-20 19:29 gotip-linux-amd64-longtest-noswissmap go@49cdf0c4 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-23 15:16 gotip-linux-386-longtest go@1cf6386b runtime:cpu4.TestGdbPythonCgo (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-23 22:35 gotip-linux-amd64-longtest-aliastypeparams go@4506796a runtime:cpu4.TestGdbPythonCgo (log)

2025-06-23 22:35 gotip-linux-amd64-longtest-noswissmap go@4506796a runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-23 23:36 gotip-linux-amd64-longtest go@f77a0aa6 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-24 13:41 gotip-linux-amd64-longtest-noswissmap go@2e9bb62b runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-24 17:18 gotip-linux-amd64-longtest go@fcb98508 runtime:cpu4.TestGdbPythonCgo (log)

=== RUN TestGdbPythonCgo === PAUSE TestGdbPythonCgo === CONT TestGdbPythonCgo runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loading Go Runtime support. Breakpoint 1 at 0x49c963: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo1313446145/001/main.go, line 31. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". ... #1 0x000000000041c245 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x579e20 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x000000000041c8a5 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x00000000004762c1 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49caaa: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo1313446145/001/main.go, line 35. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPythonCgo (2.20s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-24 17:35 gotip-linux-amd64-longtest go@34cf5f62 runtime:cpu4.TestGdbPythonCgo (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-24 20:33 gotip-linux-amd64-longtest-noswissmap go@47b941f4 runtime:cpu4.TestGdbPythonCgo (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-25 16:21 gotip-linux-amd64-longtest-aliastypeparams go@f8ccda2e runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-25 20:56 gotip-linux-amd64-longtest go@0b4d2eab runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-26 17:24 gotip-linux-amd64-longtest-aliastypeparams go@988a20c8 runtime:cpu4.TestGdbPython (log)

2025-06-27 02:49 gotip-linux-amd64-longtest-aliastypeparams go@0f8ab2db runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-27 15:23 gotip-linux-amd64-longtest-noswissmap go@fdc076ce runtime:cpu4.TestGdbPythonCgo (log)

2025-06-27 17:59 gotip-linux-amd64-longtest-aliastypeparams go@742fda95 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-27 17:59 gotip-linux-amd64-longtest go@742fda95 runtime:cpu4.TestGdbPython (log)

2025-06-27 20:56 gotip-linux-amd64-longtest go@e81c6246 runtime:cpu4.TestGdbPythonCgo (log)

=== RUN TestGdbPythonCgo === PAUSE TestGdbPythonCgo === CONT TestGdbPythonCgo runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loading Go Runtime support. Breakpoint 1 at 0x49c9a3: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo2129110753/001/main.go, line 31. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". ... #1 0x000000000041c245 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x579e20 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x000000000041c8a5 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x0000000000476301 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49caea: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo2129110753/001/main.go, line 35. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPythonCgo (1.95s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-29 14:01 gotip-linux-amd64-longtest go@acb914f2 runtime:cpu4.TestGdbPython (log)

=== RUN TestGdbPython === PAUSE TestGdbPython === CONT TestGdbPython runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loaded Script Yes /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/runtime-gdb.py Breakpoint 1 at 0x49ab23: file /home/swarming/.swarming/w/ir/x/t/TestGdbPython1564252526/001/main.go, line 30. hi ... #1 0x000000000041a7c5 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x573c60 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x000000000041ae25 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x00000000004745e1 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49ac6a: file /home/swarming/.swarming/w/ir/x/t/TestGdbPython1564252526/001/main.go, line 34. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPython (0.97s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-30 14:40 gotip-linux-amd64-longtest-aliastypeparams go@9d1cd0b8 runtime:cpu4.TestGdbPythonCgo (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-30 14:40 gotip-linux-amd64-longtest-noswissmap go@9d1cd0b8 runtime:cpu4.TestGdbPython (log)

2025-06-30 16:31 gotip-linux-amd64-longtest-noswissmap go@47318323 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-30 17:44 gotip-linux-amd64-longtest-aliastypeparams go@9ae38be3 runtime:cpu4.TestGdbPythonCgo (log)

=== RUN TestGdbPythonCgo === PAUSE TestGdbPythonCgo === CONT TestGdbPythonCgo runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loading Go Runtime support. Breakpoint 1 at 0x49c9a3: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo11829756/001/main.go, line 31. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". ... #1 0x000000000041c245 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x579e40 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x000000000041c8a5 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x0000000000476301 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49caea: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo11829756/001/main.go, line 35. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPythonCgo (1.86s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-30 19:14 gotip-linux-amd64-longtest go@fdd7713f runtime:cpu4.TestGdbPython (log)

2025-06-30 20:32 gotip-linux-amd64-longtest go@8002d283 runtime:cpu4.TestGdbPythonCgo (log)

=== RUN TestGdbPythonCgo === PAUSE TestGdbPythonCgo === CONT TestGdbPythonCgo runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loading Go Runtime support. Breakpoint 1 at 0x49ca23: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo4012115315/001/main.go, line 31. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". ... #1 0x000000000041c245 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x579e20 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x000000000041c8a5 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x0000000000476381 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49cb6a: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo4012115315/001/main.go, line 35. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPythonCgo (2.06s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-30 23:52 gotip-linux-amd64-longtest go@6bd9944c runtime:cpu4.TestGdbPythonCgo (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-30 23:52 gotip-linux-amd64-longtest-aliastypeparams go@6bd9944c runtime:cpu4.TestGdbPythonCgo (log)

=== RUN TestGdbPythonCgo === PAUSE TestGdbPythonCgo === CONT TestGdbPythonCgo runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loading Go Runtime support. Breakpoint 1 at 0x49ca23: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo1137805649/001/main.go, line 31. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". ... #1 0x000000000041c245 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x579e40 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x000000000041c8a5 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x0000000000476381 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49cb6a: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo1137805649/001/main.go, line 35. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPythonCgo (1.83s)

2025-06-30 23:52 gotip-linux-amd64-longtest-aliastypeparams go@86fca3dc runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-07-01 16:11 gotip-linux-amd64-longtest-aliastypeparams go@6e95fd96 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-30 16:31 go1.25-linux-amd64-longtest-aliastypeparams release-branch.go1.25@47318323 runtime:cpu4.TestGdbPython (log)

2025-06-30 20:32 go1.25-linux-amd64-longtest-noswissmap release-branch.go1.25@8002d283 runtime:cpu4.TestGdbPython (log)

2025-06-30 21:01 go1.25-linux-amd64-longtest release-branch.go1.25@e46d586e runtime:cpu4.TestGdbPythonCgo (log)

2025-06-30 23:52 go1.25-linux-amd64-longtest release-branch.go1.25@6bd9944c runtime:cpu4.TestGdbPythonCgo (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-06-25 20:56 go1.25-linux-amd64-longtest-aliastypeparams release-branch.go1.25@b5d55599 runtime:cpu4.TestGdbPython (log)

2025-06-26 17:24 go1.25-linux-amd64-longtest release-branch.go1.25@988a20c8 runtime:cpu4.TestGdbPython (log)

2025-06-27 15:23 go1.25-linux-amd64-longtest release-branch.go1.25@fdc076ce runtime:cpu4.TestGdbPython (log)

2025-06-27 20:56 go1.25-linux-amd64-longtest-noswissmap release-branch.go1.25@e81c6246 runtime:cpu4.TestGdbPython (log)

2025-07-01 16:11 gotip-linux-amd64-longtest-noswissmap go@6e95fd96 runtime:cpu4.TestGdbPythonCgo (log)

=== RUN TestGdbPythonCgo === PAUSE TestGdbPythonCgo === CONT TestGdbPythonCgo runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loading Go Runtime support. Breakpoint 1 at 0x49bf2a: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo430729039/001/main.go, line 31. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". ... #1 0x0000000000419485 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x575e20 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x0000000000419ae5 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x0000000000475921 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49c06a: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo430729039/001/main.go, line 35. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPythonCgo (2.40s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-07-02 11:21 gotip-linux-amd64-longtest go@15d9fe43 runtime:cpu4.TestGdbPythonCgo (log)

=== RUN TestGdbPythonCgo === PAUSE TestGdbPythonCgo === CONT TestGdbPythonCgo runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loading Go Runtime support. Breakpoint 1 at 0x49ca23: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo1785040944/001/main.go, line 31. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". ... #1 0x000000000041c245 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x579e20 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x000000000041c8a5 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x0000000000476381 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49cb6a: file /home/swarming/.swarming/w/ir/x/t/TestGdbPythonCgo1785040944/001/main.go, line 35. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPythonCgo (1.68s)

2025-07-02 14:47 gotip-linux-amd64-longtest go@b3251514 runtime:cpu4.TestGdbPythonCgo (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-07-02 11:21 gotip-linux-amd64-longtest-noswissmap go@15d9fe43 runtime:cpu4.TestGdbPython (log)

2025-07-02 14:47 gotip-linux-amd64-longtest-noswissmap go@b3251514 runtime:cpu4.TestGdbPython (log)

2025-07-03 20:33 gotip-linux-amd64-longtest-noswissmap go@dd687c38 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-07-04 01:43 gotip-linux-amd64-longtest-aliastypeparams go@6c3b5a27 runtime:cpu4.TestGdbPython (log)

=== RUN TestGdbPython === PAUSE TestGdbPython === CONT TestGdbPython runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loaded Script Yes /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/runtime-gdb.py Breakpoint 1 at 0x49aba3: file /home/swarming/.swarming/w/ir/x/t/TestGdbPython152632757/001/main.go, line 30. hi ... #1 0x000000000041a7c5 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x573c80 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x000000000041ae25 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x0000000000474661 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49acea: file /home/swarming/.swarming/w/ir/x/t/TestGdbPython152632757/001/main.go, line 34. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPython (1.76s)

2025-07-07 16:13 gotip-linux-amd64-longtest go@a995269a runtime:cpu4.TestGdbPython (log)

=== RUN TestGdbPython === PAUSE TestGdbPython === CONT TestGdbPython runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loaded Script Yes /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/runtime-gdb.py Breakpoint 1 at 0x49aba3: file /home/swarming/.swarming/w/ir/x/t/TestGdbPython2314411918/001/main.go, line 30. hi ... #1 0x000000000041a7c5 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x573c60 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x000000000041ae25 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x0000000000474661 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49acea: file /home/swarming/.swarming/w/ir/x/t/TestGdbPython2314411918/001/main.go, line 34. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPython (1.38s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-07-07 16:16 gotip-linux-amd64-longtest-aliastypeparams go@20978f46 runtime:cpu4.TestGdbPython (log)

2025-07-07 16:16 gotip-linux-amd64-longtest-noswissmap go@20978f46 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: mknyszek

@cagedmantis was looking into this and managed to get the core from the crashed gdb, IIRC. This was in #69457.

Comment From: mknyszek

I have also been unable to reproduce it in a gomote thus far... :/

Comment From: mknyszek

Oh oops, sorry, https://github.com/golang/go/issues/74355 is what I meant.

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-07-07 16:16 gotip-linux-amd64-longtest go@20978f46 runtime:cpu4.TestGdbPython (log)

2025-07-07 17:31 gotip-linux-amd64-longtest go@75b43f9a runtime:cpu4.TestGdbPython (log)

2025-07-07 20:13 gotip-linux-amd64-longtest-aliastypeparams go@ef46e1b1 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-07-01 18:01 go1.25-linux-amd64-longtest-aliastypeparams release-branch.go1.25@b062eb46 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-07-01 18:01 go1.25-linux-amd64-longtest release-branch.go1.25@b062eb46 runtime:cpu4.TestGdbPython (log)

=== RUN TestGdbPython === PAUSE TestGdbPython === CONT TestGdbPython runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loaded Script Yes /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/runtime-gdb.py Breakpoint 1 at 0x49aba3: file /home/swarming/.swarming/w/ir/x/t/TestGdbPython1705138629/001/main.go, line 30. hi ... #1 0x000000000041a7c5 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x573c40 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x000000000041ae25 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x0000000000474661 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49acea: file /home/swarming/.swarming/w/ir/x/t/TestGdbPython1705138629/001/main.go, line 34. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPython (1.03s)

2025-07-08 16:29 go1.25-linux-amd64-longtest release-branch.go1.25@2899144b runtime:cpu4.TestGdbPython (log)

=== RUN TestGdbPython === PAUSE TestGdbPython === CONT TestGdbPython runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:341: gdb output: Loading Go Runtime support. Loaded Script Yes /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/runtime-gdb.py Breakpoint 1 at 0x49aba3: file /home/swarming/.swarming/w/ir/x/t/TestGdbPython4206109908/001/main.go, line 30. hi ... #1 0x000000000041a7c5 in runtime.goparkunlock (reason=, traceReason=, traceskip=, lock=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:466 #2 runtime.(*cleanupQueue).dequeue (q=0x573c80 , ~r0=) at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:439 #3 0x000000000041ae25 in runtime.runCleanups () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mcleanup.go:635 #4 0x0000000000474661 in runtime.goexit () at /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_amd64.s:1693 #5 0x0000000000000000 in ?? () END No breakpoint at main.go:15. Breakpoint 2 at 0x49acea: file /home/swarming/.swarming/w/ir/x/t/TestGdbPython4206109908/001/main.go, line 34. runtime-gdb_test.go:343: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPython (1.03s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdbPython`

2025-07-08 15:03 gotip-linux-amd64-longtest-aliastypeparams go@a5bda585 runtime:cpu4.TestGdbPython (log)

2025-07-08 15:04 gotip-linux-amd64-longtest-aliastypeparams go@bb917bb0 runtime:cpu4.TestGdbPython (log)

2025-07-08 15:04 gotip-linux-amd64-longtest-aliastypeparams go@fca43a84 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: mknyszek

With a lot of help from @prattmic, I think we figured it out. It's #39021 rearing it's head again, which @prattmic already figured out and worked around 5 years ago.

Our working theory is that one of the SIGWINCH tests runs in parallel with the TestGdb tests not in the same process, but because go tool dist test runs multiple copies of the runtime tests in parallel.

Possible fixes: - Don't run multiple copies of the runtime tests in parallel. - Run gdb in its own process group. - Upgrade the builders to Bookworm, which has a newer version of gdb that no longer has the bug.

Comment From: prattmic

Our working theory is that one of the SIGWINCH tests runs in parallel with the TestGdb tests not in the same process

To be clear, https://cs.opensource.google/go/go/+/master:src/runtime/testdata/testprognet/signalexec.go;l=58 is the only test I can find that sends a SIGWINCH to the process group.

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-06-17 21:12 gotip-linux-amd64-longtest go@53af292a runtime:cpu4.TestGdbAutotmpTypes (log)

=== RUN TestGdbAutotmpTypes === PAUSE TestGdbAutotmpTypes === CONT TestGdbAutotmpTypes runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:626: gdb output: Loading Go Runtime support. Target 'exec' cannot support this command. Breakpoint 1 at 0x477ac0: file /home/swarming/.swarming/w/ir/x/t/TestGdbAutotmpTypes4026230935/001/main.go, line 8. runtime-gdb_test.go:628: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbAutotmpTypes (0.72s)

2025-06-24 01:21 gotip-linux-amd64-longtest-noswissmap go@f8669582 runtime:cpu4.TestGdbBacktrace (log)

=== RUN TestGdbBacktrace === PAUSE TestGdbBacktrace === CONT TestGdbBacktrace runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:529: gdb output: Loading Go Runtime support. Breakpoint 1 at 0x46f040: file /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace3908509916/001/main.go, line 17. runtime-gdb_test.go:548: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbBacktrace (1.11s)

2025-06-24 17:32 gotip-linux-amd64-longtest-aliastypeparams go@6e618cd4 runtime:cpu4.TestGdbAutotmpTypes (log)

=== RUN TestGdbAutotmpTypes === PAUSE TestGdbAutotmpTypes === CONT TestGdbAutotmpTypes runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:626: gdb output: Loading Go Runtime support. Target 'exec' cannot support this command. Breakpoint 1 at 0x477a60: file /home/swarming/.swarming/w/ir/x/t/TestGdbAutotmpTypes149517322/001/main.go, line 8. runtime-gdb_test.go:628: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbAutotmpTypes (0.68s)

2025-06-27 17:20 go1.23-linux-riscv64 release-branch.go1.23@e919b332 runtime:cpu2.TestGdbAutotmpTypes [SKIP] (log)

=== RUN TestGdbAutotmpTypes === PAUSE TestGdbAutotmpTypes === CONT TestGdbAutotmpTypes runtime-gdb_test.go:78: gdb version 15.0

2025-06-27 20:56 gotip-linux-amd64-longtest-noswissmap go@e81c6246 runtime:cpu4.TestGdbBacktrace (log)

=== RUN TestGdbBacktrace === PAUSE TestGdbBacktrace === CONT TestGdbBacktrace runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:529: gdb output: Loading Go Runtime support. Breakpoint 1 at 0x46f080: file /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace2124696015/001/main.go, line 17. runtime-gdb_test.go:548: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbBacktrace (0.76s)

2025-06-30 16:00 gotip-linux-amd64-longtest-noswissmap go@03ad694d runtime:cpu4.TestGdbPanic (log)

=== RUN TestGdbPanic === PAUSE TestGdbPanic === CONT TestGdbPanic runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:772: gdb output: Loading Go Runtime support. runtime-gdb_test.go:774: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbPanic (0.90s)

2025-06-30 17:44 go1.25-linux-amd64-longtest-noswissmap release-branch.go1.25@9ae38be3 runtime:cpu4.TestGdbConst (log)

=== RUN TestGdbConst === PAUSE TestGdbConst === CONT TestGdbConst runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:708: gdb output: Loading Go Runtime support. Breakpoint 1 at 0x476f60: file /home/swarming/.swarming/w/ir/x/t/TestGdbConst827079253/001/main.go, line 8. runtime-gdb_test.go:710: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbConst (1.32s)

2025-06-30 18:45 go1.25-linux-amd64-longtest release-branch.go1.25@740857f5 runtime:cpu4.TestGdbBacktrace (log)

=== RUN TestGdbBacktrace === PAUSE TestGdbBacktrace === CONT TestGdbBacktrace runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:529: gdb output: Loading Go Runtime support. Breakpoint 1 at 0x46fa20: file /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace3280480732/001/main.go, line 17. runtime-gdb_test.go:549: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbBacktrace (0.78s)

2025-06-30 19:14 go1.25-linux-amd64-longtest-noswissmap release-branch.go1.25@fdd7713f runtime:cpu4.TestGdbConst (log)

=== RUN TestGdbConst === PAUSE TestGdbConst === CONT TestGdbConst runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:708: gdb output: Loading Go Runtime support. Breakpoint 1 at 0x477020: file /home/swarming/.swarming/w/ir/x/t/TestGdbConst462315207/001/main.go, line 8. runtime-gdb_test.go:710: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbConst (0.77s)

2025-07-01 15:34 go1.25-linux-amd64-longtest-aliastypeparams release-branch.go1.25@d168ad18 runtime:cpu4.TestGdbBacktrace (log)

=== RUN TestGdbBacktrace === PAUSE TestGdbBacktrace === CONT TestGdbBacktrace runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:529: gdb output: Loading Go Runtime support. Breakpoint 1 at 0x46fa20: file /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace1024874913/001/main.go, line 17. runtime-gdb_test.go:549: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbBacktrace (0.67s)

2025-07-01 15:34 go1.25-linux-amd64-longtest-noswissmap release-branch.go1.25@d168ad18 runtime:cpu4.TestGdbBacktrace (log)

=== RUN TestGdbBacktrace === PAUSE TestGdbBacktrace === CONT TestGdbBacktrace runtime-gdb_test.go:81: gdb version 10.1 runtime-gdb_test.go:529: gdb output: Loading Go Runtime support. Breakpoint 1 at 0x46f100: file /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace4050535220/001/main.go, line 17. runtime-gdb_test.go:549: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbBacktrace (0.75s)

— watchflakes

Comment From: gopherbot

Change https://go.dev/cl/686875 mentions this issue: runtime: run TestSignalDuringExec in its own process group

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-07-08 18:30 gotip-linux-amd64-longtest go@54c9d776 runtime:cpu4.TestGdbPython (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-07-28 18:31 gotip-linux-arm64-longtest go@d5dc36af runtime:mayMoreStackMove.TestGdbBacktrace (log)

=== RUN TestGdbBacktrace === PAUSE TestGdbBacktrace === CONT TestGdbBacktrace runtime-gdb_test.go:84: gdb version 13.1 runtime-gdb_test.go:532: gdb output: Loading Go Runtime support. Breakpoint 1 at 0x84f64: file /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace3377507179/001/main.go, line 17. [New LWP 55686] [New LWP 55687] [New LWP 55688] [New LWP 55689] Thread 1 "a.exe" hit Breakpoint 1, 0x0000000000084f64 in main.eee (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace3377507179/001/main.go:17 17 func eee() bool { return true } #0 0x0000000000084f64 in main.eee (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace3377507179/001/main.go:17 #1 0x0000000000084f48 in main.ddd (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace3377507179/001/main.go:14 #2 0x0000000000084efc in main.ccc (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace3377507179/001/main.go:11 #3 0x0000000000084ebc in main.bbb (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace3377507179/001/main.go:8 #4 0x0000000000084e7c in main.aaa (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace3377507179/001/main.go:5 #5 0x0000000000084f8c in main.main () at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace3377507179/001/main.go:22 Unable to fetch general registers: No such process. [LWP 55689 exited] [LWP 55688 exited] [LWP 55686 exited] [LWP 55684 exited] runtime-gdb_test.go:552: gdb exited with error: exit status 1 --- FAIL: TestGdbBacktrace (0.86s)

— watchflakes

Comment From: mknyszek

FWIW, I suspect this is almost entirely test-only (like the previous failure) so I don't think it should block the RC.

Comment From: mknyszek

(It also failed on tip specifically, so it might be related to one of many changes that landed on tip.)

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-07-30 16:38 gotip-linux-riscv64 go@cc571dab runtime:cpu1.TestGdbAutotmpTypes (log)

=== RUN TestGdbAutotmpTypes === PAUSE TestGdbAutotmpTypes === CONT TestGdbAutotmpTypes runtime-gdb_test.go:84: gdb version 15.1 runtime-gdb_test.go:630: gdb output: Loading Go Runtime support. Target 'exec' cannot support this command. Breakpoint 1 at 0x78460: file /home/swarming/.swarming/w/ir/x/t/TestGdbAutotmpTypes2286770842/001/main.go, line 8. [New LWP 1300322] [New LWP 1300323] ... ./gdb/linux-nat.c:2199: internal-error: mark_lwp_dead: Assertion `lp->status == 0' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) [answered Y; input not from terminal] This is a bug, please report it. For instructions, see: . runtime-gdb_test.go:632: gdb exited with error: signal: aborted (core dumped) --- FAIL: TestGdbAutotmpTypes (2.66s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-07-30 14:31 gotip-linux-riscv64 go@8cd85e60 runtime.TestGdbAutotmpTypes [SKIP] (log)

=== RUN TestGdbAutotmpTypes === PAUSE TestGdbAutotmpTypes === CONT TestGdbAutotmpTypes runtime-gdb_test.go:84: gdb version 15.1

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-08-05 15:59 gotip-linux-ppc64le_power10 go@802d056c runtime.TestGdbAutotmpTypes (log)

=== RUN TestGdbAutotmpTypes === PAUSE TestGdbAutotmpTypes === CONT TestGdbAutotmpTypes runtime-gdb_test.go:82: gdb version 12.1 runtime-gdb_test.go:608: building source exit status 1 # command-line-arguments runtime.sigprofNonGoWrapper: nosplit stack over 800 byte limit runtime.sigprofNonGoWrapper<21> grows 544 bytes, calls runtime.sigprofNonGo<1> grows 80 bytes, calls runtime.(*cpuProfile).addNonGo<1> grows 56 bytes, calls runtime.panicBounds<1> grows 136 bytes, calls runtime.panicBounds64<1> grows 0 bytes, calls runtime.morestack<0> 16 bytes over limit --- FAIL: TestGdbAutotmpTypes (6.20s)

2025-08-05 15:59 gotip-linux-ppc64le_power10 go@802d056c runtime.TestGdbConst (log)

=== RUN TestGdbConst === PAUSE TestGdbConst === CONT TestGdbConst runtime-gdb_test.go:82: gdb version 12.1 runtime-gdb_test.go:680: building source exit status 1 # command-line-arguments runtime.sigprofNonGoWrapper: nosplit stack over 800 byte limit runtime.sigprofNonGoWrapper<21> grows 544 bytes, calls runtime.sigprofNonGo<1> grows 80 bytes, calls runtime.(*cpuProfile).addNonGo<1> grows 56 bytes, calls runtime.panicBounds<1> grows 136 bytes, calls runtime.panicBounds64<1> grows 0 bytes, calls runtime.morestack<0> 16 bytes over limit --- FAIL: TestGdbConst (6.51s)

2025-08-05 15:59 gotip-linux-ppc64le_power9 go@802d056c runtime.TestGdbAutotmpTypes (log)

2025-08-05 15:59 gotip-linux-ppc64le_power9 go@802d056c runtime.TestGdbConst (log)

2025-08-05 15:59 gotip-linux-ppc64le_power10 go@21ab0128 runtime.TestGdbAutotmpTypes (log)

2025-08-05 15:59 gotip-linux-ppc64le_power10 go@21ab0128 runtime.TestGdbConst (log)

2025-08-05 15:59 gotip-linux-ppc64le_power9 go@21ab0128 runtime.TestGdbAutotmpTypes (log)

2025-08-05 15:59 gotip-linux-ppc64le_power9 go@21ab0128 runtime.TestGdbConst (log)

2025-08-05 16:18 gotip-linux-ppc64le_power10 go@cd55f86b runtime.TestGdbAutotmpTypes (log)

2025-08-05 16:18 gotip-linux-ppc64le_power10 go@cd55f86b runtime.TestGdbConst (log)

2025-08-05 16:18 gotip-linux-ppc64le_power9 go@cd55f86b runtime.TestGdbAutotmpTypes (log)

2025-08-05 16:18 gotip-linux-ppc64le_power9 go@cd55f86b runtime.TestGdbConst (log)

2025-08-05 16:52 gotip-linux-ppc64le_power10 go@a2c45f0e runtime.TestGdbAutotmpTypes (log)

2025-08-05 16:52 gotip-linux-ppc64le_power10 go@a2c45f0e runtime.TestGdbConst (log)

2025-08-05 16:52 gotip-linux-ppc64le_power9 go@a2c45f0e runtime.TestGdbAutotmpTypes (log)

2025-08-05 16:52 gotip-linux-ppc64le_power9 go@a2c45f0e runtime.TestGdbConst (log)

2025-08-05 17:31 gotip-linux-ppc64le_power10 go@4ee0df8c runtime.TestGdbAutotmpTypes (log)

2025-08-05 17:31 gotip-linux-ppc64le_power10 go@4ee0df8c runtime.TestGdbConst (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-08-05 17:31 gotip-linux-ppc64le_power9 go@4ee0df8c runtime.TestGdbAutotmpTypes (log)

2025-08-05 17:31 gotip-linux-ppc64le_power9 go@4ee0df8c runtime.TestGdbConst (log)

2025-08-05 17:41 gotip-linux-ppc64le_power10 go@c0025d5e runtime.TestGdbAutotmpTypes (log)

2025-08-05 17:41 gotip-linux-ppc64le_power10 go@c0025d5e runtime.TestGdbConst (log)

2025-08-05 17:41 gotip-linux-ppc64le_power9 go@c0025d5e runtime.TestGdbAutotmpTypes (log)

2025-08-05 17:41 gotip-linux-ppc64le_power9 go@c0025d5e runtime.TestGdbConst (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-08-05 20:55 gotip-linux-ppc64le_power10 go@cef381ba runtime.TestGdbAutotmpTypes (log)

2025-08-05 20:55 gotip-linux-ppc64le_power10 go@cef381ba runtime.TestGdbConst (log)

2025-08-05 20:55 gotip-linux-ppc64le_power9 go@cef381ba runtime.TestGdbAutotmpTypes (log)

2025-08-05 20:55 gotip-linux-ppc64le_power9 go@cef381ba runtime.TestGdbConst (log)

2025-08-05 21:00 gotip-linux-ppc64le_power10 go@55d961b2 runtime.TestGdbAutotmpTypes (log)

2025-08-05 21:00 gotip-linux-ppc64le_power10 go@55d961b2 runtime.TestGdbConst (log)

2025-08-05 21:10 gotip-linux-ppc64le_power10 go@b0945a54 runtime.TestGdbAutotmpTypes (log)

2025-08-05 21:10 gotip-linux-ppc64le_power10 go@b0945a54 runtime.TestGdbConst (log)

2025-08-05 21:10 gotip-linux-ppc64le_power9 go@b0945a54 runtime.TestGdbAutotmpTypes (log)

2025-08-05 21:10 gotip-linux-ppc64le_power9 go@b0945a54 runtime.TestGdbConst (log)

2025-08-05 21:30 gotip-linux-arm64-boringcrypto go@bcd25c79 runtime.TestGdbBacktrace (log)

=== RUN TestGdbBacktrace === PAUSE TestGdbBacktrace === CONT TestGdbBacktrace runtime-gdb_test.go:82: gdb version 13.1 runtime-gdb_test.go:529: gdb output: Loading Go Runtime support. Breakpoint 1 at 0x7b764: file /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace815697160/001/main.go, line 17. [New LWP 41403] [New LWP 41404] [New LWP 41406] [New LWP 41408] Thread 1 "a.exe" hit Breakpoint 1, 0x000000000007b764 in main.eee (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace815697160/001/main.go:17 17 func eee() bool { return true } #0 0x000000000007b764 in main.eee (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace815697160/001/main.go:17 #1 0x000000000007b748 in main.ddd (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace815697160/001/main.go:14 #2 0x000000000007b6fc in main.ccc (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace815697160/001/main.go:11 #3 0x000000000007b6bc in main.bbb (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace815697160/001/main.go:8 #4 0x000000000007b67c in main.aaa (~r0=) at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace815697160/001/main.go:5 #5 0x000000000007b78c in main.main () at /home/swarming/.swarming/w/ir/x/t/TestGdbBacktrace815697160/001/main.go:22 Unable to fetch general registers: No such process. [LWP 41408 exited] [LWP 41404 exited] [LWP 41403 exited] [LWP 41396 exited] runtime-gdb_test.go:549: gdb exited with error: exit status 1 --- FAIL: TestGdbBacktrace (0.69s)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-08-05 20:57 gotip-linux-ppc64le_power10 go@e73afaae runtime.TestGdbAutotmpTypes (log)

2025-08-05 20:57 gotip-linux-ppc64le_power10 go@e73afaae runtime.TestGdbConst (log)

2025-08-05 20:58 gotip-linux-ppc64le_power10 go@af0c4fe2 runtime.TestGdbAutotmpTypes (log)

2025-08-05 20:58 gotip-linux-ppc64le_power10 go@af0c4fe2 runtime.TestGdbConst (log)

2025-08-05 20:58 gotip-linux-ppc64le_power9 go@af0c4fe2 runtime.TestGdbAutotmpTypes (log)

2025-08-05 20:58 gotip-linux-ppc64le_power9 go@af0c4fe2 runtime.TestGdbConst (log)

2025-08-05 21:00 gotip-linux-ppc64le_power9 go@55d961b2 runtime.TestGdbAutotmpTypes (log)

2025-08-05 21:00 gotip-linux-ppc64le_power9 go@55d961b2 runtime.TestGdbConst (log)

2025-08-05 21:30 gotip-linux-ppc64le_power10 go@bcd25c79 runtime.TestGdbAutotmpTypes (log)

2025-08-05 21:30 gotip-linux-ppc64le_power10 go@bcd25c79 runtime.TestGdbConst (log)

2025-08-05 21:30 gotip-linux-ppc64le_power9 go@bcd25c79 runtime.TestGdbAutotmpTypes (log)

2025-08-05 21:30 gotip-linux-ppc64le_power9 go@bcd25c79 runtime.TestGdbConst (log)

2025-08-05 21:31 gotip-linux-ppc64le_power10 go@e1fd4faf runtime.TestGdbAutotmpTypes (log)

2025-08-05 21:31 gotip-linux-ppc64le_power10 go@e1fd4faf runtime.TestGdbConst (log)

2025-08-05 21:31 gotip-linux-ppc64le_power9 go@e1fd4faf runtime.TestGdbAutotmpTypes (log)

2025-08-05 21:31 gotip-linux-ppc64le_power9 go@e1fd4faf runtime.TestGdbConst (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-08-05 20:57 gotip-linux-ppc64le_power9 go@e73afaae runtime.TestGdbAutotmpTypes (log)

2025-08-05 20:57 gotip-linux-ppc64le_power9 go@e73afaae runtime.TestGdbConst (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-08-06 01:02 gotip-linux-ppc64le_power10 go@4c7362e4 runtime.TestGdbAutotmpTypes (log)

2025-08-06 01:02 gotip-linux-ppc64le_power10 go@4c7362e4 runtime.TestGdbConst (log)

2025-08-06 01:02 gotip-linux-ppc64le_power9 go@4c7362e4 runtime.TestGdbAutotmpTypes (log)

2025-08-06 01:02 gotip-linux-ppc64le_power9 go@4c7362e4 runtime.TestGdbConst (log)

2025-08-06 01:02 gotip-linux-ppc64le_power10 go@dda9d780 runtime.TestGdbAutotmpTypes (log)

2025-08-06 01:02 gotip-linux-ppc64le_power10 go@dda9d780 runtime.TestGdbConst (log)

2025-08-06 01:02 gotip-linux-ppc64le_power10 go@17a8be71 runtime.TestGdbAutotmpTypes (log)

2025-08-06 01:02 gotip-linux-ppc64le_power10 go@17a8be71 runtime.TestGdbConst (log)

2025-08-06 01:02 gotip-linux-ppc64le_power9 go@17a8be71 runtime.TestGdbAutotmpTypes (log)

2025-08-06 01:02 gotip-linux-ppc64le_power9 go@17a8be71 runtime.TestGdbConst (log)

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
post <- (pkg == "runtime" || pkg ~ `runtime:`) && test ~ `TestGdb`

2025-08-06 01:02 gotip-linux-ppc64le_power10 go@a5527374 runtime.TestGdbAutotmpTypes (log)

2025-08-06 01:02 gotip-linux-ppc64le_power10 go@a5527374 runtime.TestGdbConst (log)

2025-08-06 01:02 gotip-linux-ppc64le_power9 go@a5527374 runtime.TestGdbAutotmpTypes (log)

2025-08-06 01:02 gotip-linux-ppc64le_power9 go@a5527374 runtime.TestGdbConst (log)

2025-08-06 01:02 gotip-linux-ppc64le_power10 go@5defe8eb runtime.TestGdbAutotmpTypes (log)

2025-08-06 01:02 gotip-linux-ppc64le_power10 go@5defe8eb runtime.TestGdbConst (log)

2025-08-06 01:02 gotip-linux-ppc64le_power9 go@5defe8eb runtime.TestGdbAutotmpTypes (log)

2025-08-06 01:02 gotip-linux-ppc64le_power9 go@5defe8eb runtime.TestGdbConst (log)

2025-08-06 01:02 gotip-linux-ppc64le_power9 go@dda9d780 runtime.TestGdbAutotmpTypes (log)

2025-08-06 01:02 gotip-linux-ppc64le_power9 go@dda9d780 runtime.TestGdbConst (log)

— watchflakes

Comment From: prattmic

I've filed #74910 for the nosplit stack limit failures, and updated the query to exclude those from this bug.