Re: [PATCH] lock stat for -rt 2.6.20-rc2-rt2 [was Re: 2.6.19-rt14 slowdown compared to 2.6.19]

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On Tue, Jan 02, 2007 at 03:12:34PM -0800, Bill Huey wrote:
> On Tue, Jan 02, 2007 at 02:51:05PM -0800, Chen, Tim C wrote:
> > Bill,
> > 
> > I'm having some problem getting this patch to run stablely.  I'm
> > encoutering errors like that in the trace that follow:
> 
> It might the case that the lock isn't know to the lock stats code yet.
> It's got some technical overlap with lockdep in that a lock might not be
> known yet and is causing a crashing.

The stack trace and code examination reveals, if that structure in the
timer code is used before it's initialized by the CPU bringup, it'll
cause problems like that crash. I'll look at it later on tonight.

bill

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