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    SubjectRe: 2.6.38-rc2: Uhhuh. NMI received for unknown reason 2d on CPU 0.

    * Cyrill Gorcunov <gorcunov@gmail.com> wrote:

    > On 2/16/11, Dave Airlie <airlied@gmail.com> wrote:
    > > On Wed, Feb 2, 2011 at 2:18 PM, Cyrill Gorcunov <gorcunov@gmail.com> wrote:
    > >> On 2/2/11, George Spelvin <linux@horizon.com> wrote:
    > >>>> But if you have a will or would like to help debug the problem -- mind
    > >>>> to
    > >>>> try the patch below? Note the patch is ugly at moment and must *not* be
    > >>>> running on non-P4 system (and I only compile-tested it so no guarantees
    > >>>> at all, and I've CC'ed a couple of people as well)
    > >>>
    > >>> Promising... After 32 minute of uptime, no NMI complaints so far.
    > >>>
    > >>> I'll let it run overnight and see what happens.
    > >>>
    > >>
    > >> Great, thanks. Though the patch didn't help for Don, ie there is still
    > >> an issue which needs to be resolved as well.
    > >> --
    > >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    > >> the body of a message to majordomo@vger.kernel.org
    > >> More majordomo info at http://vger.kernel.org/majordomo-info.html
    > >> Please read the FAQ at http://www.tux.org/lkml/
    > >>
    > >
    > > Ping on this problem, still seeing
    > >
    > > Uhhuh. NMI received for unknown reason 3c on CPU 0.
    > > Do you have a strange power saving mode enabled?
    > > Dazed and confused, but trying to continue
    > >
    > > on my Pentium-D system here with latest Linus head.
    > >
    > > its sometimes 3c, sometimes 3d, I'm going to bisect and push for
    > > reverts if nobody still has any clue about how to fix this.
    > >
    > > Dave.
    > >
    >
    > We still trying to resolve it but without success yet. There is no
    > easy way to revert it. One of the option might be to disable perf on
    > p4 for a while. If this is acceptable -- i'll cook such patch and send
    > it to Ingo. Hm?

    That's not really acceptable - need to fix it or revert it to the last working
    state. Which commit broke it?

    Thanks,

    Ingo


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