Re: frequent lockups in 3.18rc4

From: Dave Jones
Date: Fri Dec 26 2014 - 21:54:56 EST


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@xxxxxxxxxxxxxxxxx> 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
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