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    SubjectRe: [Bug #10955] v2.6.26-rc7: BUG task_struct: Poison overwritten
    Hi,

    On Sun, Jul 13, 2008 at 8:00 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
    > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10955
    > Subject : v2.6.26-rc7: BUG task_struct: Poison overwritten
    > Submitter : Vegard Nossum <vegard.nossum@gmail.com>
    > Date : 2008-06-21 19:24 (23 days old)
    > References : http://marc.info/?l=linux-kernel&m=121407641925121&w=4
    > Handled-By : Peter Zijlstra <a.p.zijlstra@chello.nl>

    We've seen a rather lot of fixes for cpu hotplug and the scheduler
    over the last few weeks. I'm suspecting that this one might also have
    been fixed unknowingly by one of the other commits (this is backed by
    the fact that I haven't been able to reproduce _any_
    cpu-hotplug-related failure as of the latest mainline kernel), on the
    other hand I don't know exactly why.

    I guess I should run a longer test to see if this comes up again.

    (Oh, maybe it was an RCU-type thing? Nick Piggin recently had a patch
    that fixed some RCU error. Peter?)


    Vegard

    --
    "The animistic metaphor of the bug that maliciously sneaked in while
    the programmer was not looking is intellectually dishonest as it
    disguises that the error is the programmer's own creation."
    -- E. W. Dijkstra, EWD1036


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