linux-kernel - Re: frequent lockups in 3.18rc4

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Date:	Sat, 6 Dec 2014 00:04:11 -0500
From:	Gene Heskett <gheskett@...v.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Dave Jones <davej@...hat.com>, Chris Mason <clm@...com>,
	Mike Galbraith <umgwanakikbuti@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Dâniel Fraga <fragabr@...il.com>,
	Sasha Levin <sasha.levin@...cle.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: frequent lockups in 3.18rc4

On Friday 05 December 2014, Linus Torvalds wrote:
>On Fri, Dec 5, 2014 at 9:15 AM, Dave Jones <davej@...hat.com> wrote:
>> A bisect later, and I landed on a kernel that ran for a day, before
>> spewing NMI messages, recovering, and then..
>> 
>> http://codemonkey.org.uk/junk/log.txt
>
>I have to admit I'm seeing absolutely nothing sensible in there.
>
>Call it bad, and see if bisection ends up slowly -oh so slowly -
>pointing to some direction. Because I don't think it's the hardware,
>considering that apparently 3.16 is solid. And the spews themselves
>are so incomprehensible that I'm not seeing any pattern what-so-ever.
>
>                     Linus

Sort of in the FWIW category, may not mean a thing.

I did find something in 3.16.0 that is troubling me at times, causing a 
very busy quad core Phenom.  But I have located the culprit in my case. 

Look at your Xorg.0.log. Because the nouveau bits in the 3.16.0 kernel I'm 
using are no longer 100% compatible with an Xorg install thats now 5 years 
old, I am generating Xorg.0.logs that can reach 500 megabyte or more in a 
couple weeks. I am trying to run down the latest Xorg I can build here on 
this *buntu 10.04.4 LTS box, but haven't located a URL to get the tarball 
from. Yet, its been busy here.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS
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