Re: [PATCH] perf: fix possible divide-by-zero in perf_swevent_overflow()

[DDD]

Frederic Weisbecker wrote:
> On Fri, Aug 27, 2010 at 09:19:39PM +0800, DDD wrote:
> > Peter Zijlstra wrote:
> > > On Fri, 2010-08-27 at 20:21 +0800, DDD wrote:
> > >
> > > > > > Maybe the root cause was from kgdb/hw_breakpoint_layer,
> > > > > Yeah, I think there's a bug in the hw_breakpoint stuff, does something
> > > > > like the below fix it?
> > > > Thanks for your patch, but I still could reproduce the problem with 
> > > > your patch.
> > > Frederic, any clue as to what makes hw breakpoints go funny and have
> > > last_period == 0?
> > Hi Peter,
> >
> > Thanks for you take care of it, I have got the root cause of it now.
> >
> > It is the kgdb using hw_breakpoint_layer's API problem, and I have a RFC  
> > patch for it.(maybe it is not correctly), I will contact with Jason to  
> > fix this problem.
> >
> > Thank you very much,
> > Dongdong
>
>
> Thanks!
>
> We are waiting for your patch then.

Hello Frederic,

Sorry for delay, the patch have been accepted by Jason.

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c1bb9a9c1911036549c5cdfb23f32d7d20ffdc5a

Dongdong
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