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Date: Tue, 24 Jul 2012 09:19:36 +0800 From: Michael Wang <wangyun@...ux.vnet.ibm.com> To: Martin Mokrejs <mmokrejs@...d.natur.cuni.cz> CC: Mike Galbraith <mgalbraith@...ell.com>, LKML <linux-kernel@...r.kernel.org>, "paulmck@...ux.vnet.ibm.com" <paulmck@...ux.vnet.ibm.com>, dan.carpenter@...cle.com Subject: Re: [QUESTION ON BUG] the rcu stall issue could not be reproduced On 07/24/2012 02:46 AM, Martin Mokrejs wrote: > Hi, > I see few more RCU bugs reported in bugzilla: > > https://bugzilla.kernel.org/show_bug.cgi?id=43028 > https://bugzilla.kernel.org/show_bug.cgi?id=40092 > https://bugzilla.kernel.org/show_bug.cgi?id=42997 > > And, I placed my previous long email with logs at > https://bugzilla.kernel.org/show_bug.cgi?id=45091 > > Hope this helps eventually once. That's very helpful, I need some time to read and think about it, thanks for the info ;-) Regards, Michael Wang > Martin > > Mike Galbraith wrote: >> On Fri, 2012-07-20 at 11:09 +0800, Michael Wang wrote: >>> Hi, Mike, Martin, Dan >>> >>> I'm currently taking an eye on the rcu stall issue which was reported by >>> you in the mail: >>> >>> rcu: endless stalls >>> From: Mike Galbraith >>> linux-3.4-rc7: rcu_sched self-detected stall on CPU >>> From: Martin Mokrejs >>> RCU stalls in linux-next >>> From: Dan Carpenter >>> >>> I try to reproduce the issue on my X86 server with 12 cpu >> >> The 'endless stalls' box was 341.33333 times larger. Dunno if you can >> even set a serial port slow enough to approximate all cores trying to >> gripe through a single pinhole simultaneously. >> >> -Mike >> >> > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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