Re: frequent lockups in 3.18rc4

From: Dave Jones
Date: Tue Nov 18 2014 - 16:31:36 EST

On Tue, Nov 18, 2014 at 04:25:53PM -0500, Don Zickus wrote:

> I was going to reply about both points too. :-) Though the mangling looks
> odd because we have spin_locks serializing the output for each cpu.
> Another thing I wanted to ask DaveJ, did you recently turn on
> CONFIG_PREEMPT? That would explain why you are seeing the softlockups
> now. If you disable CONFIG_PREEMPT does the softlockups disappear.

I've had it on on my test box forever. I'll add trying turning to off
to the list of things to try.

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