Re: perf: fuzzer crashes immediately on AMD system

From	Vince Weaver <vincent.weaver@maine.edu>
Newsgroups	linux.kernel
Subject	Re: perf: fuzzer crashes immediately on AMD system
Date	2016-08-24 15:30 +0200
Message-ID	<s9GpI-2LQ-29@gated-at.bofh.it> (permalink)
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On Wed, 24 Aug 2016, Ingo Molnar wrote:
> If there's no progress finding the root cause I'd be happy to exchange a crash for 
> a leak ...

It's actually a crash of the program doing the perf_event_open() call, not 
a crash of the system (at least in my experience).

However, it's possible that if you have bad luck and if the kfree'd space 
is reused with just the right combination of values you could potentially 
end up crashing the system.

Vince

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Re: perf: fuzzer crashes immediately on AMD system Vince Weaver <vincent.weaver@maine.edu> - 2016-08-18 16:50 +0200
  Re: perf: fuzzer crashes immediately on AMD system Peter Zijlstra <peterz@infradead.org> - 2016-08-19 12:10 +0200
    Re: perf: fuzzer crashes immediately on AMD system Peter Zijlstra <peterz@infradead.org> - 2016-08-19 13:00 +0200
    Re: perf: fuzzer crashes immediately on AMD system Vince Weaver <vincent.weaver@maine.edu> - 2016-08-19 17:10 +0200
      Re: perf: fuzzer crashes immediately on AMD system Vince Weaver <vincent.weaver@maine.edu> - 2016-08-19 18:40 +0200
    Re: perf: fuzzer crashes immediately on AMD system Vince Weaver <vincent.weaver@maine.edu> - 2016-08-20 06:50 +0200
    Re: perf: fuzzer crashes immediately on AMD system Vince Weaver <vincent.weaver@maine.edu> - 2016-08-23 03:20 +0200
      Re: perf: fuzzer crashes immediately on AMD system Vince Weaver <vincent.weaver@maine.edu> - 2016-08-23 05:00 +0200
        Re: perf: fuzzer crashes immediately on AMD system Peter Zijlstra <peterz@infradead.org> - 2016-08-23 10:50 +0200
          Re: perf: fuzzer crashes immediately on AMD system Vince Weaver <vincent.weaver@maine.edu> - 2016-08-23 14:10 +0200
            Re: perf: fuzzer crashes immediately on AMD system Ingo Molnar <mingo@kernel.org> - 2016-08-24 11:30 +0200
              Re: perf: fuzzer crashes immediately on AMD system Vince Weaver <vincent.weaver@maine.edu> - 2016-08-24 15:30 +0200

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