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

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Message-ID: <464CA90B.20100@tuxrocks.com>
Date:	Thu, 17 May 2007 14:12:11 -0500
From:	Frank Sorenson <frank@...rocks.com>
To:	Frank Sorenson <frank@...rocks.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>,
	Christoph Lameter <clameter@....com>
Subject: Re: [PATCH] x86-64 highres/dyntick support 2.6.22-rc1-v5

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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...

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

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