linux-kernel - Re: [GIT PULL] adaptive spinning mutexes

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Message-Id: <200901152353.05990.chris@csamuel.org>
Date:	Thu, 15 Jan 2009 23:53:02 +1100
From:	Chris Samuel <chris@...muel.org>
To:	linux-btrfs@...r.kernel.org
Cc:	Ingo Molnar <mingo@...e.hu>, Kay Sievers <kay.sievers@...y.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org, a.p.zijlstra@...llo.nl,
	paulmck@...ux.vnet.ibm.com, ghaskins@...ell.com, matthew@....cx,
	andi@...stfloor.org, chris.mason@...cle.com,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	tglx@...utronix.de, npiggin@...e.de, pmorreale@...ell.com,
	SDietrich@...ell.com, dmitry.adamushko@...il.com,
	hannes@...xchg.org
Subject: Re: [GIT PULL] adaptive spinning mutexes

On Thu, 15 Jan 2009 9:34:08 am Ingo Molnar wrote:

> So the 3 main Linux distros, generating ~95% of the kerneloops.org
> feedback traffic, all have SCHED_DEBUG=y, and at least two have
> !DEBUG_MUTEXES. (possibly Ubuntu has that disabled it too)

That looks correct for Ubuntu:

chris@...htv:~$ grep CONFIG_DEBUG_MUTEXES /boot/config-2.6.2*
/boot/config-2.6.24-21-generic:# CONFIG_DEBUG_MUTEXES is not set
/boot/config-2.6.27-7-generic:# CONFIG_DEBUG_MUTEXES is not set
/boot/config-2.6.27-9-generic:# CONFIG_DEBUG_MUTEXES is not set


-- 
 Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC

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