Re: frequent lockups in 3.18rc4

From: Sasha Levin
Date: Thu Dec 11 2014 - 17:58:49 EST

On 12/11/2014 05:36 PM, Linus Torvalds wrote:
> On Thu, Dec 11, 2014 at 1:52 PM, Sasha Levin <sasha.levin@xxxxxxxxxx> wrote:
>> >
>> > Is it possible that Dave and myself were seeing the same problem after
>> > all?
> Could be. You do have commonalities, even if the actual symptoms then
> differ. And while it looked different when you could trigger it with
> 3.16 but DaveJ couldn't, that's up in the air now that I doubt that
> 3.16 really is ok for DaveJ after all..
> And you might have a better luck bisecting it, since you seem to be
> able to trigger your RCU lockup much more quickly (and apparently
> reliably? Correct?)

Right, and it reproduces in 3.10 as well, so it's not really a new thing.

What's odd is that I don't remember seeing this bug so long in the past,
I'll try bisecting trinity rather than the kernel - it's the only other
thing that changed.

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