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Date: Fri, 26 Dec 2014 21:53:54 -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 Fri, Dec 26, 2014 at 03:30:20PM -0800, Linus Torvalds wrote: > On Fri, Dec 26, 2014 at 2:57 PM, Dave Jones <davej@...emonkey.org.uk> wrote: > > > > still running though.. > > Btw, did you ever boot with "tsc=reliable" as a kernel command line option? I'll check it again in the morning, but before I turn in for the night, so far the only thing is this: [ 6713.394395] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 6713.394489] Tasks blocked on level-0 rcu_node (CPUs 0-7): [ 6713.394513] Tasks blocked on level-0 rcu_node (CPUs 0-7): [ 6713.394536] (detected by 3, t=6502 jiffies, g=141292, c=141291, q=0) [ 6713.394564] INFO: Stall ended before state dump start Dave -- 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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