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Subject: Re: 2.6.23-rc4-mm1 and -rc6-mm1: boot failure on HP nx6325,
	related to clockevents
From: Thomas Gleixner <tglx@linutronix.de>
To: Mikhail Kshevetskiy <mikhail.kshevetskiy@gmail.com>
Cc: linux-kernel@vger.kernel.org, "Rafael J.Wysocki" <rjw@sisk.pl>,
       Dave Jones <davej@redhat.com>, Chuck Ebbert <cebbert@redhat.com>
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Date: Tue, 25 Sep 2007 11:30:18 +0200
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Rafael,

On Tue, 2007-09-25 at 10:07 +0200, Thomas Gleixner wrote:
> On Tue, 2007-09-25 at 10:14 +0400, Mikhail Kshevetskiy wrote:
> > Hello Thomas, Rafael
> > 
> > > We know, that
> > > - disabling local apic timers work
> > 
> > As i can see from the log, you are booting on computer with dualcore AMD
> > processor. Do you have C1E feature enabled? 
> > 
> > i386 kernel disable lapic on dualcore AMD with C1E support (see 
> > http://lkml.org/lkml/2007/3/29/199). x86_64 kernel do not have this
> > patch still (it's required for tickless kernel only).
> 
> Well it is required for non tickless mode as well.
> 
> >  As result, if
> > you run x86_64 kernel with hrt patch on such computer, the system
> > will stall during boot on lapic timer calibration.
> 
> Thanks for the reminder. I have a look into this.

Can you please boot mainline and provide the output of:

# cat /proc/interrupts; sleep 10; cat /proc/interrupts

Thanks,

	tglx