runtime: TestGdbPython* failures

[gopherbot]

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

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

[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

[bcmills]

See previously:

• runtime: TestGdbPythonCgo fails on arm w/1.18 #51694
• runtime: TestGdbPythonCgo is flaky on linux-mips64le-rtrk builder #37794
• runtime: TestGdbPythonCgo failure with "malformed backtrace" on linux-amd64 builder #35743
• runtime: TestGdbPython* fails on solaris #20821

[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.

[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.

[thanm]

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

[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