Messages in this thread | | | Date | Wed, 16 Feb 2011 09:56:05 +0100 | From | Ingo Molnar <> | Subject | Re: 2.6.38-rc2: Uhhuh. NMI received for unknown reason 2d on CPU 0. |
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* Cyrill Gorcunov <gorcunov@gmail.com> wrote:
> On Wed, Feb 16, 2011 at 11:37 AM, Ingo Molnar <mingo@elte.hu> wrote: > ... > >> >> > >> > > >> > 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 > > > > I can't say you the commit id after which unknown-nmi start happening > (i'm out of git tree > at moment) but even then this commit should not be reverted since the > problem is in > p4 code not in the rest of perf system. > > I have two patches here (attached) and would really appreciate of > their testing on HT machine > together with kgdb bootup tests enabled. Dave could you please?
Could these patches fix Dave's non-kgdb problem? Dave isnt using kgdb but is probably using perf which triggers NMIs? Dave, can you confirm that?
And it's a spurious NMI message, not actual lockup or other misbehavior, right?
Thanks,
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