#!watchflakes
default <- pkg == "runtime/pprof" && test == "TestProfilerStackDepth"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestProfilerStackDepth
panic: runtime.errorString("integer divide by zero")
fatal error: panic on system stack

runtime stack:
runtime.throw({0x7ff7ab38e484?, 0x7ff7ab4ee150?})
    C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:1067 +0x38 fp=0x3d4d9ff400 sp=0x3d4d9ff3d0 pc=0x7ff7ab21f2a8
panic({0x7ff7ab35b0e0?, 0x7ff7ab4ee150?})
    C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:749 +0x2bc fp=0x3d4d9ff4b0 sp=0x3d4d9ff400 pc=0x7ff7ab21f1bc
runtime.panicdivide()
...
runtime.asyncPreempt2()
    C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/preempt.go:306 +0x2c fp=0x40000d1dd0 sp=0x40000d1db0 pc=0x7ff7ab1e96dc
runtime.asyncPreempt()
    C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/preempt_arm64.s:47 +0x9c fp=0x40000d1fc0 sp=0x40000d1dd0 pc=0x7ff7ab2281cc
runtime/pprof.TestProfilerStackDepth.gowrap1()
    C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/pprof/pprof_test.go:2456 fp=0x40000d1fd0 sp=0x40000d1fd0 pc=0x7ff7ab328390
runtime.goexit({})
    C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_arm64.s:1223 +0x4 fp=0x40000d1fd0 sp=0x40000d1fd0 pc=0x7ff7ab227634
created by runtime/pprof.TestProfilerStackDepth in goroutine 70880
    C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/pprof/pprof_test.go:2456 +0xe4

— watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "runtime/pprof" && test == "TestProfilerStackDepth"
2024-08-15 00:52 gotip-windows-arm64 go@49adb8e4 runtime/pprof.TestProfilerStackDepth [ABORT] (log) === RUN TestProfilerStackDepth panic: runtime.errorString("integer divide by zero") fatal error: panic on system stack runtime stack: runtime.throw({0x7ff7ab38e484?, 0x7ff7ab4ee150?}) C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:1067 +0x38 fp=0x3d4d9ff400 sp=0x3d4d9ff3d0 pc=0x7ff7ab21f2a8 panic({0x7ff7ab35b0e0?, 0x7ff7ab4ee150?}) C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:749 +0x2bc fp=0x3d4d9ff4b0 sp=0x3d4d9ff400 pc=0x7ff7ab21f1bc runtime.panicdivide() ... runtime.asyncPreempt2() C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/preempt.go:306 +0x2c fp=0x40000d1dd0 sp=0x40000d1db0 pc=0x7ff7ab1e96dc runtime.asyncPreempt() C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/preempt_arm64.s:47 +0x9c fp=0x40000d1fc0 sp=0x40000d1dd0 pc=0x7ff7ab2281cc runtime/pprof.TestProfilerStackDepth.gowrap1() C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/pprof/pprof_test.go:2456 fp=0x40000d1fd0 sp=0x40000d1fd0 pc=0x7ff7ab328390 runtime.goexit({}) C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_arm64.s:1223 +0x4 fp=0x40000d1fd0 sp=0x40000d1fd0 pc=0x7ff7ab227634 created by runtime/pprof.TestProfilerStackDepth in goroutine 70880 C:/Users/swarming/.swarming/w/ir/x/w/goroot/src/runtime/pprof/pprof_test.go:2456 +0xe4

— watchflakes

Comment From: gopherbot

Change https://go.dev/cl/606115 mentions this issue: runtime: store zero-delay mutex contention events