lkml.org 
[lkml]   [2010]   [Aug]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH -v3] perf, x86: try to handle unknown nmis with running perfctrs

    * Ingo Molnar <mingo@elte.hu> wrote:

    >
    > * Don Zickus <dzickus@redhat.com> wrote:
    >
    > > I'll test tip later today to see if I can reproduce it.
    > >
    > > Cheers,
    > > Don
    > >
    > > Ingo Molnar <mingo@elte.hu> wrote:
    > >
    > > >
    > > >it's not working so well, i'm getting:
    > > >
    > > > Uhhuh. NMI received for unknown reason 00 on CPU 9.
    > > > Do you have a strange power saving mode enabled?
    > > > Dazed and confused, but trying to continue
    > > >
    > > >on a nehalem box, after a perf top and perf stat run.
    >
    > FYI, it does not trigger on an AMD box.

    Ok, to not hold up the perf/urgent flow i zapped these two commits for
    the time being:

    4a31beb: perf, x86: Fix handle_irq return values
    8e3e42b: perf, x86: Try to handle unknown nmis with an enabled PMU

    We can apply them if they take a form that dont introduce a different
    kind of (and more visible) regression.

    Thanks,

    Ingo


    \
     
     \ /
      Last update: 2010-08-23 10:57    [W:0.042 / U:1.936 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site