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

Ingo Molnar
2008-07-17T22:06:34Z

* David Miller <davem@davemloft.net> wrote:

> From: Ingo Molnar <mingo@elte.hu>
> Date: Thu, 17 Jul 2008 23:42:22 +0200
>
> >
> > A regression to v2.6.26:
> >
> > I started getting this skb-head corruption message today, on a T60
> > laptop with e1000:
>
> This is very unlikely to be added by us networking folks, no
> networking merges have happened for the 2.6.27 merge window yet :-)

yeah. That's why i observed:

> > Perhaps SLUB debugging got smarter?

and Cc:-ed SLUB folks. Could be a sleeper cell of bugs gone active ;-)

Or could be SLUB (-debugging) breakage. Netconsole is pretty reliable on
this box. (and the bootup continued just fine after this report)

Just re-tried it, the bug is reliably repeatable. Will try a bisection
run.

Ingo