[kernel-xen] "xen Frag is bigger than frame" on dom0 running 3.8.3-1.el6xen.x86_64

[Steven Haigh]

On 05/23/2013 10:31 AM, Adi Pircalabu wrote:
> Hi all,
>
> Just been hit this morning by the infamous bug which Steven posted about
> last month on this thread:
> http://lists.xen.org/archives/html/xen-devel/2013-04/msg02590.html
>
> The troubled dom0 is running CentOS 6.4 with
> kernel-3.8.3-1.el6xen.x86_64 and xen-4.1.1-3.el6.x86_64. The domU whose
> network froze is running CentOS 5.9 i686 with
> kernel-xen-2.6.18-348.4.1.el5 at the time. After rebooting the domU, its
> network died again 4 minutes later. These are the relevant log entries:
>
> May 23 04:47:02 xen kernel: vif vif-58-0 vifvm106.0: Frag is bigger than
> frame.
> May 23 04:47:02 xen kernel: vif vif-58-0 vifvm106.0: fatal error;
> disabling device
> May 23 04:47:02 xen kernel: br0: port 5(vifvm106.0) entered disabled state
>
> After booting the domU on another Xen node that runs an older,
> 2.6.32-based Xen kernel, I've got its kernel upgraded to
> kernel-xen-2.6.18-348.6.1.el5 and now it's running back on the original
> Xen node for about 30 minutes, no issues yet. I suppose it's a case of
> wait and see how it goes.

You should not see this using Dom0 kernel 3.8.8-2 or above. In the grand 
scheme of things, 3.8.3 is quite old. This is documented both via my bug 
reports (http://xen.crc.id.au/bugs/view.php?id=3) and the kernel 
changelog (http://xen.crc.id.au/changelog-kernel-full.txt)

FYI kernel 3.8.x has been marked EOL.

-- 
Steven Haigh

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