Messages in this thread | | | From | Vince Weaver <> | Date | Thu, 25 Sep 2014 00:59:31 -0400 (EDT) | Subject | Re: perf: perf_fuzzer triggers instant reboot |
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So I noticed Cong Wang's patch (3577af70a2ce4853d58e57d832e687d739281479) perf: Fix a race condition in perf_remove_from_context()
and that sounds a lot like the weird fork()/memory-corruption bug that the fuzzer has been triggering.
So I applied that patch alone on top of the 3.17-rc4 kernel that I could reproducibly reboot... and with the patch I can't trigger the problem anymore.
Now that just might mean the patch pushed the code around enough so my test doesn't trigger, but there is hope that maybe this fixes things.
Cong Wang, do you have more info on how you came across this bug? And how you tracked down the problem?
Thanks,
Vince
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