linux-kernel - Re: frequent lockups in 3.18rc4

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Message-ID: <20141223145633.GF27965@codemonkey.org.uk>
Date:	Tue, 23 Dec 2014 09:56:33 -0500
From:	Dave Jones <davej@...emonkey.org.uk>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>, 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>,
	Suresh Siddha <sbsiddha@...il.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Peter Anvin <hpa@...ux.intel.com>,
	John Stultz <john.stultz@...aro.org>
Subject: Re: frequent lockups in 3.18rc4

On Mon, Dec 22, 2014 at 03:59:19PM -0800, Linus Torvalds wrote:
 
 > But in the meantime please do keep that thing running as long as you
 > can. Let's see if we get bigger jumps. Or perhaps we'll get a negative
 > result - the original softlockup bug happening *without* any bigger
 > hpet jumps.

It's been going for 18 hours, with just a bunch more of those hpet
messages, all in the same range.  I'll leave it go a few more hours,
before I have to wipe it, but I've got feel-good vibes about this.
Even if that patch isn't the solution, It seems like we're finally
looking in the right direction.

	Dave
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