On 01/21/2013 08:40 PM, Eric Dumazet wrote:
On Mon, 2013-01-21 at 16:32 -0800, Ben Greear wrote:
On 01/21/2013 01:07 PM, Ben Greear wrote:
I posted about this a few days ago, but this time the patches applied
are minimal and there are no out-of-tree kernel modules loaded.
Here's another crash, this time with SLUB memory debugging turned on.
Seems much harder to hit this way...I've only managed this one. I
believe the RCX register might be interesting...that 6b is probably
freed memory poisioning. Maybe skb or skb_dest() is already freed?
I have added a 'verify_mem_not_deleted(skb)' before the
dst_input line in ip_rcv_finish..but so far, it hasn't
hit the problem...
There is no way skb is freed here.
I would say macvlan is at fault here.
It probably lacks a proper (dev->flags & IFF_UP) test.
Thanks for the patch. It's running OK so far, but I'll need to
do a bunch more testing tomorrow to make sure I'm not just getting
lucky!
I'll let you know how it goes tomorrow.
Thanks,
Ben
--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc http://www.candelatech.com
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