internal/trace: TestTraceCPUProfile/Stress failures

[gopherbot]

#!watchflakes
default <- pkg == "internal/trace" && test == "TestTraceCPUProfile/Stress"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestTraceCPUProfile/Stress
    reader_test.go:112: unexpected error while reading the trace: inconsistent status for goroutine 4: old Runnable vs. new Waiting
    trace_test.go:627: found bad trace; dumping to test log...
    trace_test.go:638: Trace Go1.23
        EventBatch gen=1 m=18446744073709551615 time=4827905708 size=5
        Frequency freq=15625000
        EventBatch gen=1 m=76763 time=4827904561 size=144
        ProcStatus dt=69 p=0 pstatus=1
        GoStatus dt=3 g=1 m=76763 gstatus=2
        ProcsChange dt=52 procs_value=8 stack=1
...
        String id=74
        	data="runtime.chanrecv1"
        String id=75
        	data="runtime.(*wakeableSleep).sleep"
        String id=76
        	data="runtime.traceStartReadCPU.func1"
        String id=77
        	data="/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/tracecpu.go"
        
--- FAIL: TestTraceCPUProfile/Stress (3.61s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "internal/trace" && test == "TestTraceCPUProfile/Stress"

2024-12-17 16:05 gotip-linux-arm64-longtest go@31e50af5 internal/trace.TestTraceCPUProfile/Stress (log)

=== RUN   TestTraceCPUProfile/Stress
    reader_test.go:112: unexpected error while reading the trace: inconsistent status for goroutine 4: old Runnable vs. new Waiting
    trace_test.go:627: found bad trace; dumping to test log...
    trace_test.go:638: Trace Go1.23
        EventBatch gen=1 m=18446744073709551615 time=4827905708 size=5
        Frequency freq=15625000
        EventBatch gen=1 m=76763 time=4827904561 size=144
        ProcStatus dt=69 p=0 pstatus=1
        GoStatus dt=3 g=1 m=76763 gstatus=2
        ProcsChange dt=52 procs_value=8 stack=1
...
        String id=74
        	data="runtime.chanrecv1"
        String id=75
        	data="runtime.(*wakeableSleep).sleep"
        String id=76
        	data="runtime.traceStartReadCPU.func1"
        String id=77
        	data="/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/tracecpu.go"
        
--- FAIL: TestTraceCPUProfile/Stress (3.61s)

— watchflakes