linux-kernel - Re: Kernel Panic with bonding + IPoIB on 3.2.9

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]

Date:	Tue, 20 Mar 2012 14:33:03 +1100
From:	Joseph Glanville <joseph.glanville@...onvm.com.au>
To:	Roland Dreier <roland@...estorage.com>
Cc:	linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: Kernel Panic with bonding + IPoIB on 3.2.9

On 20 March 2012 06:05, Roland Dreier <roland@...estorage.com> wrote:
> On Sun, Mar 18, 2012 at 1:21 PM, Joseph Glanville
> <joseph.glanville@...onvm.com.au> wrote:
>> [  422.047024] kernel BUG at net/core/dev.c:1896!
>
> So this line is
>
>        BUG_ON(offset >= skb_headlen(skb));
>
> right?  No paritcular idea how we hit this, though...

Yep... I have looked through most of /drivers/net/bonding and I can't
really see why it should be blowing up there.. it really should cause
the BUG_ON under normal IPoIB if the MTU was the cause - yet I have
not experienced this.
The bonding code doesn't seem to do anything special with the MTU
other than propagating changes to the slaves.

-- 
Founder | Director | VP Research
Orion Virtualisation Solutions | www.orionvm.com.au | Phone: 1300 56
99 52 | Mobile: 0428 754 846
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/