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    SubjectRe: [PATCH v2 perf/core] perf script: fix a use after free crash.
    On Tue, Oct 11, 2016 at 02:28:39AM -0700, Krister Johansen wrote:
    > If dso__load_kcore frees all of the existing maps, but one has already
    > been attached to a callchain cursor node, then we can get a SIGSEGV in
    > any function that happens to try to use this invalid cursor. Use the
    > existing map refcount mechanism to forestall cleanup of a map until the
    > cursor iterates past the node.

    It has been a couple of weeks since I sent out v2 of this patch. I
    understand that folks here have plenty of irons in the fire, but I
    wanted to double-check that nobody was waiting on me for additional
    information or changes.

    Thanks,

    -K

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