linux-kernel - Re: [RFC] Avoid PIT SMP lockups

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Message-Id: <200610112137.01160.caglar@pardus.org.tr>
Date:	Wed, 11 Oct 2006 21:37:01 +0300
From:	"S.Çağlar Onur" <caglar@...dus.org.tr>
To:	john stultz <johnstul@...ibm.com>
Cc:	Andi Kleen <ak@...e.de>, lkml <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] Avoid PIT SMP lockups

11 Eki 2006 Çar 20:59 tarihinde, john stultz şunları yazmıştı: 
> > Yep, [1] here is whole screen and used config, and as andi suggested i
> > recompiled this kernel [pure vanilla 2.6.18] from scratch.
> >
> > [1] http://cekirdek.pardus.org.tr/~caglar/2.6.18/
>
> Huh.. that's an odd trace.  Looks like the alternative code is involved.
>
> Mind booting w/ "noreplacement" to see if that avoids it?

Booting with "noreplacement" solved panics (i tried booting 10 times with both 
kernel) for both vanilla one and yours patch included one.

By the way i just realize, panic occurs between

Checking if this processor honours the WP bit even in supervisor mode... Ok.

and

Calibrating delay using timer specific routine.. xxxxx BogoMIPS (lpj=xxxxx)

lines, and system waits there about 5 sec. maybe more (no matter if it panics 
or continues to boot somehow)

Cheers
-- 
S.Çağlar Onur <caglar@...dus.org.tr>
http://cekirdek.pardus.org.tr/~caglar/

Linux is like living in a teepee. No Windows, no Gates and an Apache in house!

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