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SubjectRe: [PATCH 0/3 v2] nmi perf fixes
On Fri, Sep 10, 2010 at 01:41:40PM +0200, Peter Zijlstra wrote:
> On Thu, 2010-09-02 at 15:07 -0400, Don Zickus wrote:
> > Fixes to allow unknown nmis to pass through the perf nmi handler instead
> > of being swallowed. Contains patches that are already in Ingo's tree. Added
> > here for completeness. Based on ingo/tip
> >
> > Tested on intel/amd
> >
> > v2: patch cleanups and consolidation, no code changes
> >
> > Don Zickus (1):
> > perf, x86: Fix accidentally ack'ing a second event on intel perf
> > counter
> >
> > Peter Zijlstra (1):
> > perf, x86: Fix handle_irq return values
> >
> > Robert Richter (1):
> > perf, x86: Try to handle unknown nmis with an enabled PMU
> >
> > arch/x86/kernel/cpu/perf_event.c | 59 +++++++++++++++++++++++++-------
> > arch/x86/kernel/cpu/perf_event_intel.c | 15 +++++---
> > arch/x86/kernel/cpu/perf_event_p4.c | 2 +-
> > 3 files changed, 56 insertions(+), 20 deletions(-)
>
> Both Ingo and I are getting Dazed and confused on our AMD machines, it
> started before yesterday (that is, after backing out all my recent
> changes it still gets dazed), so I suspect this set.
>
> I'll look at getting a trace of the thing, but if any of you has a
> bright idea...

What are you running to create the problem? I can try and duplicate it
here.

Cheers,
Don



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