linux-kernel - Re: [PATCH] x86-64 highres/dyntick support 2.6.22-rc1-v5

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Message-ID: <464D23CC.1040906@tuxrocks.com>
Date:	Thu, 17 May 2007 22:55:56 -0500
From:	Frank Sorenson <frank@...rocks.com>
To:	Christoph Lameter <clameter@....com>
CC:	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
	john stultz <johnstul@...ibm.com>, Ingo Molnar <mingo@...e.hu>,
	Chris Wright <chrisw@...s-sol.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>, Andi Kleen <ak@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alistair John Strachan <s0348365@....ed.ac.uk>
Subject: Re: [PATCH] x86-64 highres/dyntick support 2.6.22-rc1-v5

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Christoph Lameter wrote:
> On Thu, 17 May 2007, Frank Sorenson wrote:
>> Frank Sorenson wrote:
>>
>>> Hrm.  Looks like it gets past the hpet_is_known  There's still something
>>> in the hpet detection code, but I didn't get to the bottom of it yet.
>>> I'll do some more debugging to track down where it's really hanging.
>>> Sorry for the noise.
>> I've tracked down this hang to a kzalloc in the hpet code that never
>> returns.  But only when using SLUB.  Using SLAB, the highres/dyntick
>> patch boots without problem.
>>
>> ...adding Christoph to the CC list...
> 
> Please boot with slub_debug.

No debugging output at all.  Still hangs with only:
	Kernel alive
	Kernel direct mapping tables up to 100000000 @ 8000-d000

Frank
- --
Frank Sorenson - KD7TZK
Linux Systems Engineer, DSS Engineering, UBS AG
frank@...rocks.com
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