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Re: [Xen-devel] bug: slab corruption (net backend?)

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] bug: slab corruption (net backend?)
From: Gerd Knorr <kraxel@xxxxxxx>
Date: 07 Jul 2005 17:54:07 +0200
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Gerd Knorr <kraxel@xxxxxxx> writes:

> With the small debug patch below and CONFIG_DEBUG_SLAB=y I get
> plenty of these messages in the dom0 kernel log as soon as I
> start a domU:
>   Slab corruption: start=dc423000, len=4096
>   Slab name: xen-skb
>   000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

After digging in the netback code I'm not sure any more this is a real
bug.  Could also be the slab debugging can deal with the page mapping
tricks the netback driver does when sending/receiving packets.  The
start address mentioned referes to a page allocated via alloc_mfn() in
netback.c ...


panic("it works"); /* avoid being flooded with debug messages */

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