netdev - Re: [bug, netconsole, SLUB] BUG skbuff_head

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080717220600.GA1701@elte.hu>
Date:	Fri, 18 Jul 2008 00:06:00 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	David Miller <davem@...emloft.net>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	penberg@...helsinki.fi, vegard.nossum@...il.com, rjw@...k.pl
Subject: Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison
	overwritten


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

> From: Ingo Molnar <mingo@...e.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
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html