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    SubjectRe: 2.6.14-rc1 BUG: spinlock wrong owner on CPU#0
    Date
    On Tue, 13 Sep 2005 11:17:59 +0200, 
    Ingo Molnar <mingo@elte.hu> wrote:
    >
    >* Keith Owens <kaos@sgi.com> wrote:
    >
    >> Booting 2.6.14-rc1 on ia64, I sometimes get
    >>
    >> BUG: spinlock wrong owner on CPU#0, swapper/1
    >> lock: e000003003014940, .magic: dead4ead, .owner: pdflush/75, .owner_cpu: 0
    >
    >hm, ia64 uses __ARCH_WANT_UNLOCKED_CTXSW and thus it releases the
    >runqueue lock early - so a certain assumption in the new, improved
    >spinlock debugging code does not apply. Does the patch below help?

    Works for me, but it needs to be a -p1 patch, not -p0.

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