Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwritten

Ingo Molnar
2008-07-21T19:22:58Z

* Ingo Molnar <mingo@elte.hu> wrote:

> * Evgeniy Polyakov <johnpol@2ka.mipt.ru> wrote:
>
> > > I could try run tests with netconsole deactivated, if you think
> > > that's a worthwile line of probing this problem. (although that
> > > would make me do blind tests in essence - having kernel log output
> > > is really essential.)
> >
> > Let's try this way first. If system will continue to crash, we will
> > add some debug options in various pathes. Existing reports do not
> > contain enough information unfortunately, so we will not lose too
> > much.
>
> ok. I've turned off netconsole - 8 successful bootups in a row so far.
> The box is a slow booter/builder with an 8 kernels/hour test
> throughput, so if everything goes fine we should have meaningful
> results in about 10 hours.
>
> ( there are other, faster testboxes in -tip testing with 33 kernels/hour
> build+boot throughput where we'd have to wait only 2 hours - but as
> per Murphy's law they dont trigger this bug ;-)

70 bootups with netconsole turned off, and not a single crash so far.

So it's now a strong likelyhood that this crash is a combination of
e1000e+netconsole.

Ingo