linux-kernel - Re: [PATCH diagnostic] Re: HPET regression in 2.6.26 versus 2.6.25 -- RCU problem

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Message-ID: <396862.4174.qm@web82107.mail.mud.yahoo.com>
Date:	Mon, 11 Aug 2008 11:13:29 -0700 (PDT)
From:	David Witbrodt <dawitbro@...global.net>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, Yinghai Lu <yhlu.kernel@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH diagnostic] Re: HPET regression in 2.6.26 versus 2.6.25 -- RCU problem




> So i find this debug feature rather useful and have applied it to 
> tip/core/rcu (and cleaned it up a bit). I renamed the config option to 
> CONFIG_DEBUG_RCU_STALL to make it more in line with usual debug option 
> names. Lets see whether -tip testing finds any false positives.

Hmmm, should have read ALL of the emails first!  Drat...

Just for kicks, I rebuilt using Ingo's version -- since I had manually
pasted Paul's patch, there was the possibility of PEBKAC interference:
no additional output at the lock up.


Dave W.
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