os/signal: TestSignalTrace failures

[gopherbot]

#!watchflakes
default <- pkg == "os/signal" && test == "TestSignalTrace"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestSignalTrace
SIGBUS: bus error
PC=0x1023aaca8 m=7 sigcode=1 addr=0x39d43285ac

goroutine 0 gp=0x140001841c0 m=7 mp=0x14000180008 [idle]:
runtime.fpTracebackPCs(...)
	/Volumes/Work/s/w/ir/x/w/goroot/src/runtime/trace2stack.go:258
runtime.traceStack(0x14000003c00?, 0x200000004?, 0x60)
	/Volumes/Work/s/w/ir/x/w/goroot/src/runtime/trace2stack.go:109 +0x248 fp=0x16de86e80 sp=0x16de86a10 pc=0x1023aaca8
runtime.traceAdvance.func1.1()
...
r24     0x0
r25     0x14000035d10
r26     0x140000c6cb0
r27     0x10261f000
r28     0x140001841c0
r29     0x16de86a08
lr      0x1023aaa94
sp      0x16de86a10
pc      0x1023aaca8
fault   0x39d43285ac

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "os/signal" && test == "TestSignalTrace"

2024-04-09 04:07 gotip-darwin-arm64_12 go@9f3f4c64 os/signal.TestSignalTrace [ABORT] (log)

=== RUN   TestSignalTrace
SIGBUS: bus error
PC=0x1023aaca8 m=7 sigcode=1 addr=0x39d43285ac

goroutine 0 gp=0x140001841c0 m=7 mp=0x14000180008 [idle]:
runtime.fpTracebackPCs(...)
	/Volumes/Work/s/w/ir/x/w/goroot/src/runtime/trace2stack.go:258
runtime.traceStack(0x14000003c00?, 0x200000004?, 0x60)
	/Volumes/Work/s/w/ir/x/w/goroot/src/runtime/trace2stack.go:109 +0x248 fp=0x16de86e80 sp=0x16de86a10 pc=0x1023aaca8
runtime.traceAdvance.func1.1()
...
r24     0x0
r25     0x14000035d10
r26     0x140000c6cb0
r27     0x10261f000
r28     0x140001841c0
r29     0x16de86a08
lr      0x1023aaa94
sp      0x16de86a10
pc      0x1023aaca8
fault   0x39d43285ac

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "os/signal" && test == "TestSignalTrace"

2024-04-22 17:13 gotip-linux-arm64-race go@ed2671aa os/signal.TestSignalTrace [ABORT] (log)

=== RUN   TestSignalTrace
SIGSEGV: segmentation violation
PC=0x46acac m=7 sigcode=1 addr=0x7ffbfd97fdc483

goroutine 0 gp=0xc00011c540 m=7 mp=0xc000128008 [idle]:
runtime.fpTracebackPCs(...)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/tracestack.go:256
runtime.traceStack(0xc00008a8c0?, 0x200000004?, 0x5a)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/tracestack.go:113 +0x28c fp=0xfabe048fe890 sp=0xfabe048fe420 pc=0x46acac
runtime.traceAdvance.func1.1()
...
r24     0xfabe048fead0
r25     0xc000037cc0
r26     0xc0000e9bb0
r27     0x16df000
r28     0xc00011c540
r29     0xfabe048fe418
lr      0x46aa54
sp      0xfabe048fe420
pc      0x46acac
fault   0x7ffbfd97fdc483

2024-04-22 17:58 gotip-linux-amd64-goamd64v3 go@654c3368 os/signal.TestSignalTrace [ABORT] (log)

=== RUN   TestSignalTrace
SIGSEGV: segmentation violation
PC=0x468114 m=0 sigcode=1 addr=0x20

goroutine 0 gp=0x6921e0 m=0 mp=0x692f00 [idle]:
runtime.fpTracebackPCs(...)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/tracestack.go:256
runtime.traceStack(0x692f00?, 0x2?, 0x1)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/tracestack.go:113 +0x2d4 fp=0x7ffebc8a1110 sp=0x7ffebc8a0ca8 pc=0x468114
runtime.traceLocker.stack(...)
...
r11    0x7fca70429000
r12    0x7ffebc8a0d28
r13    0xc0001028c0
r14    0x6921e0
r15    0x4
rip    0x468114
rflags 0x10206
cs     0x33
fs     0x0
gs     0x0

— watchflakes

[mknyszek]

This is fixed at tip.