From: Gerd Knorr <kraxel@suse.de>
To: Nivedita Singhvi <niv@us.ibm.com>
Cc: xen-devel@lists.xensource.com, Steven Hand <Steven.Hand@cl.cam.ac.uk>
Subject: Re: bug: slab corruption (net backend?)
Date: Mon, 11 Jul 2005 15:25:35 +0200 [thread overview]
Message-ID: <20050711132535.GB13297@bytesex> (raw)
In-Reply-To: <42CD52F4.2010407@us.ibm.com>
> >As the tcpdump below shows the xen machine sends the same packet over
> >and over again. I'd guess some kind of memory corruption which kills
> >the packet checksum and makes eskarina drop the packet. Maybe just
> >use-after-free as the slabdebug stuff will fill released memory blocks
> >with some pattern.
>
> Can you disable tcp checksum offload (ethtool -K tx off) and see
> if you can reproduce this problem?
Never seen that again since I've turned off CONFIG_SLAB_DEBUG,
which seems to be incompatible with the page mapping the xen
backend drivers do.
Gerd
--
panic("it works"); /* avoid being flooded with debug messages */
next prev parent reply other threads:[~2005-07-11 13:25 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-07 9:41 bug: slab corruption (net backend?) Gerd Knorr
2005-07-07 10:11 ` Steven Hand
2005-07-07 11:35 ` Gerd Knorr
2005-07-07 12:05 ` Keir Fraser
2005-07-07 12:22 ` Gerd Knorr
2005-07-07 12:48 ` Gerd Knorr
2005-07-07 13:17 ` Gerd Knorr
2005-07-07 14:05 ` Keir Fraser
2005-07-07 14:18 ` Gerd Knorr
2005-07-07 14:41 ` Gerd Knorr
2005-07-07 16:06 ` Nivedita Singhvi
2005-07-11 13:25 ` Gerd Knorr [this message]
2005-07-11 13:37 ` Keir Fraser
2005-07-11 14:29 ` Bin Ren
2005-07-07 15:54 ` Gerd Knorr
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