On Tue, Mar 21, 2017 at 08:25:39PM +0100, Thomas Gleixner wrote:
> > RAX looks like list poison, and CR2 = 4, which is likely the ->next of a
> > list,
> > with a NULL pointer.
>
> Certainly not on 64 bit. that would be 8. And CR2 is irrelevant here
> because that's a #GP not a #PF.
doh!
> The timer which expires has timer->entry.next == POISON2 !
>
> This has nothing to do with tracing, it's a classic list corruption. The
> bad news is that there is no trace of the culprit because that happens when
> some other timer expires after some random amount of time.
ah! Thanks for putting me back on the right path.
> If that is reproducible, then please enable debugobjects. That should
> pinpoint the culprit.
hit it twice today so far, so hopefully it'll reproduce.
thanks.
Dave
