On Tue, Jun 04, 2013 at 10:44:21AM +0200, Peter Zijlstra wrote: > > Ingo asked for a delta against the patch already included in -tip. > > Vince; perf_fuzzer crashed after about 5670000 iterations -- not sure > you're aware it will crash at times. Anyway at this time accounting was > still good. > > --- > Subject: perf: Fix mmap() accounting hole > > Vince's fuzzer once again found holes. This time it spotted a leak in > the locked page accounting. > > When an event had redirected output and its close() was the last > reference to the buffer we didn't have a vm context to undo accounting. > > Change the code to destroy the buffer on the last munmap() and detach > all redirected events at that time. This provides us the right context > to undo the vm accounting. > > Reported-by: Vince Weaver <vincent.weaver@xxxxxxxxx> > Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Vince, can you confirm? -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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