Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poisonoverwritten

From: Ingo Molnar
Date: Thu Jul 17 2008 - 18:06:36 EST

* David Miller <davem@xxxxxxxxxxxxx> wrote:

> From: Ingo Molnar <mingo@xxxxxxx>
> 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

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