Re: [Xen-devel] Frag is bigger than frame.

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, Apr 25, 2013 at 12:24:22PM +0100, Steven Haigh wrote:
> Hi all,
> 
> I've noticed a couple of DomUs have networking freeze with the following 
> getting printed to the Dom0's /var/log/messages:
> 
> Apr 25 12:09:25 hosting kernel: vif vif-4-0 vif.crc: Frag is bigger than 
> frame.
> Apr 25 12:09:25 hosting kernel: vif vif-4-0 vif.crc: fatal error; 
> disabling device
> Apr 25 12:09:25 hosting kernel: br0: port 5(vif.crc) entered disabled state
> 
> I thought this was something to do with MAX_SKB_FRAGS - however the 
> kernel I use has this increased to 19 - so in theory I shouldn't hit 
> this (as far as I know).
> 
> Are there any other things that could trigger this?
> 

You're seeing a netfront bug which is fixed in that series. And it is
not related to MAX_SKB_FRAGS but related to GSO.

Could you try applying my patch set "Bundle fixes for Xen netfront /
netback" version 7. That series has been applied to DaveM's net-next.


Wei.


> -- 
> Steven Haigh
> 
> Email: netwiz@xxxxxxxxx
> Web: https://www.crc.id.au
> Phone: (03) 9001 6090 - 0412 935 897
> Fax: (03) 8338 0299
> 
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