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    SubjectRe: perf: kernel memory leak when inherit enabled
    On Mon, 2011-03-14 at 18:27 -0400, Vince Weaver wrote:
    > On Fri, 11 Mar 2011, Vince Weaver wrote:
    > >
    > > While trying to use perf events with inherit enabled to profile some
    > > multi-threaded BLAS routines (using PAPI) I ended up out-of-memorying my
    > > machine. It turns out you can quickly leak gigabytes of kernel memory
    > > that isn't freed when the process exits.
    > I've bisected this. There's a whole day I'll never see again. binutils
    > 2.21 and gcc-4.5 for the lose :(
    > Anyway this memory leak with inherit was introduced in
    > 4fd38e4595e

    Thanks, managed to get some time yesterday and got as far as to see that
    our perf_event_context refcounting is indeed screwy, but didn't get
    around to actually catching the culprit.

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      Last update: 2011-03-15 10:11    [W:0.031 / U:4.148 seconds]
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