Re: Upcoming oops in lockdep

[Peter Zijlstra]

On Mon, 2008-08-25 at 08:51 +0200, Peter Zijlstra wrote:
> On Sat, 2008-08-23 at 13:49 -0700, Arjan van de Ven wrote:
> > in kerneloops.org a crash (slab poison) in mark_lock is coming up
> > rapidly: 
> > 
> > http://www.kerneloops.org/searchweek.php?search=mark_lock

Also, would be marvelous if you can at least put one of these bug
reports in the email, saves me from having to grope for a web browser
thingy.

> > and despite a few earlier hits on the same function it seems to be
> > something introduced in 2.6.27-rc... (the older ones aren't slab poison)
> 
> infradeads.org hehe
> 
> can this crash be reproduced without lockdep? Normally when I see
> crashes like this its crashing because the lock itself is stomped on
> (use after free, for example), and lockdep happens to be the one to
> touch it first (the lockdep state is by far the largest bit of the
> spinlock data too).

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/