linux-kernel - Re: The never ending BEEEEP/__smp_call_function

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Date:	Sun, 30 Mar 2008 22:18:51 +0200
From:	Chr <chunkeey@....de>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org,
	Andi Kleen <ak@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: The never ending BEEEEP/__smp_call_function_mask with 2.6.25-rc7

On Sunday 30 March 2008 21:59:51 Thomas Gleixner wrote:
> On Sun, 30 Mar 2008, Rafael J. Wysocki wrote:
> > > So. take a look at stuck_task... that's best backtrace I could get...
> > > (I have other logs too. (Task-list / Lockdep / ... ) but it's too much
> > > and I hope the _logs_ are already enough.
> > >
> > > BTW: I noticed that the clock seems to jump forward and backwards.
> > > Is this because the CPU-Cores aren't syncronized? (And why are they
> > > out of sync?)
>
> The cores of those AMD beasts are never in sync. That's a chip feature :)
>
> Can you please provide the output of:
>   /sys/devices/system/clocksource/clocksource0/current_clocksource
>
> for both 2.6.24 and 2.6.25-rc7
it's "hpet" (in both cases...)

Regards,
	Chr

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