Re: OOPS in perf_mmap_close()

[Peter Zijlstra]

On Wed, May 29, 2013 at 03:18:32PM -0400, Vince Weaver wrote:
> On Wed, 29 May 2013, Peter Zijlstra wrote:
> > 
> > Hurm.. I don't suppose you have an easy reproducer handy eh? I'll go
> > stare at it. At least the current state is better than before, but
> > clearly we're not quite there yet.
> 
> OK, below is an easy reproducer.  Just run it two or three times.
> It leaks 129 pages in user->locked_vm each time you run it.
> 
> It took me a while to bisect this down from 10,000 syscalls to just 3.
> I now have a tool that can generate valid perf test_cases from my fuzzer 
> traces, which should be useful.

Awesome! How specific is it to perf? I mean, would that tool work
equally well for other tinity report?

I'll go prod, thanks again!
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