#!watchflakes
default <- pkg == "internal/trace" && test == "TestTraceStacks/AllocFree"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestTraceStacks/AllocFree
    trace_test.go:499: no match for StateTransition Match=Goroutine Running->Runnable Stack=[]trace_test.frame{trace_test.frame{fn:"main.syncPreemptPoint", line:0}, trace_test.frame{fn:"main.main.func12", line:0}}
    trace_test.go:668: found bad trace; dumping to test log...
    trace_test.go:679: Trace Go1.25
        EventBatch gen=1 m=18446744073709551615 time=21526743195 size=26
        Sync
        Frequency freq=15625000
        ClockSnapshot dt=66028 mono=1377715789992 sec=1751058383 nsec=970828722
        ExperimentalBatch exp=1 gen=1 m=18446744073709551615 time=21526810000
            data="\x01\x80\x80\x80\x80\x80\x18\x80@\b\x80\x10"
...
        String id=237
            data="runtime.traceLocker.GoUnpark"
        String id=238
            data="runtime.injectglist"
        String id=239
            data="runtime.bgsweep"
        String id=240
            data="/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mgcsweep.go"

--- FAIL: TestTraceStacks/AllocFree (2.01s)

watchflakes

Comment From: gopherbot

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "internal/trace" && test == "TestTraceStacks/AllocFree"
2025-06-27 20:56 gotip-linux-amd64-longtest go@e81c6246 internal/trace.TestTraceStacks/AllocFree (log) === RUN TestTraceStacks/AllocFree trace_test.go:499: no match for StateTransition Match=Goroutine Running->Runnable Stack=[]trace_test.frame{trace_test.frame{fn:"main.syncPreemptPoint", line:0}, trace_test.frame{fn:"main.main.func12", line:0}} trace_test.go:668: found bad trace; dumping to test log... trace_test.go:679: Trace Go1.25 EventBatch gen=1 m=18446744073709551615 time=21526743195 size=26 Sync Frequency freq=15625000 ClockSnapshot dt=66028 mono=1377715789992 sec=1751058383 nsec=970828722 ExperimentalBatch exp=1 gen=1 m=18446744073709551615 time=21526810000 data="\x01\x80\x80\x80\x80\x80\x18\x80@\b\x80\x10" ... String id=237 data="runtime.traceLocker.GoUnpark" String id=238 data="runtime.injectglist" String id=239 data="runtime.bgsweep" String id=240 data="/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mgcsweep.go" --- FAIL: TestTraceStacks/AllocFree (2.01s)

watchflakes