Re: [PATCH][RFC] tracing: Use class->reg() for all registering of events

Peter Zijlstra
2010-06-09T11:54:05Z

On Wed, 2010-06-09 at 17:17 +0530, Srikar Dronamraju wrote:
> * Peter Zijlstra <peterz@infradead.org> [2010-06-09 08:32:30]:
>
> > On Wed, 2010-06-09 at 10:35 +0530, Srikar Dronamraju wrote:
> >
> > > Peter, can you please point me to the fix for the floating point
> > > exception patch?
> >
> > Ingo just commited the fix, see tip commit f6ab91add6 (perf: Fix signed
> > comparison in perf_adjust_period()).
>
> Actually this fix was already checked-in but I still see the problem.
>
> When ran gdb on the core, it showed me that it was dumping in
> /usr/lib64/libnewt.so.0.52. in newtScaleSet function.
> My newt lib was of version : newt-0.52.2-15
>
> I am now able to workaround the problem by uninstalling newt-devel.

Ah, ok, then we're talking about two different issues, the patch I
referred to solves a possible /0 in the kernel which triggers easily
with software events because of that unsigned comparison.

I'll have to defer to Arnaldo on the newt issue.