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xen-users
RE: [Xen-users] Xen Panic w/ dom0 2.6.30.2(gentoo-xen-kernel.googlecode.
> On Thu, Aug 6, 2009 at 12:18 PM, James
> Dingwall<james.dingwall@xxxxxxxxxx> wrote:
> >
> >>> To be honest 2.6.29 is the best one to use at the moment, 2.6.30
> has
> >>> issues with networking which I've not been able to fix, also
> opensuse
> >>> have selected 2.6.31 as their next distro kernel so I plan to
> rebase
> >>> that as soon as it is released and to put more effort into
> supporting
> >>> it, they have already moved to the 2.6.31-rcX tree so 2.6.30 is
> dead
> >>> as far as opensuse are concerned, that makes it much harder for me
> to
> >>> support.
> >
> > Out of interest what networking issues have you seen? I am using
> > 2.6.30-xen-r1 and I lose connectivity to my domUs occasionally. It
> > seems to happen under heavy disk/network I/O. I've not isolated to
> > either in particular but when it seems to coincide with lots of NFS
> or
> > rsync activity. e.g. my gentoo domUs are doing an rsync of the
> portage
> > tree from the dom0 or doing an emerge where distfiles and the ccache
> are
> > mounted by NFS from dom0. There is nothing in the logs on the domU
> or
> > dom0 except from NFS timeout messages. I did try -r2 but I just get
> > immediate reboots when xen is relinquishing the vga console. Going
> to
> > reboot with 2.6.29 later to see if I still get the same behaviour.
> >
> > Thanks,
> > James
> >
> > This message and the information contained herein is proprietary and
> confidential and subject to the Amdocs policy statement,
> > you may review at http://www.amdocs.com/email_disclaimer.asp
> >
>
> The networking problems I've had with 2.6.30 are malformed packets
> being sent to the domU, see the last few posts in this thread for
> details http://forums.gentoo.org/viewtopic.php?p=5915696#5915696
FWIW I seem to have solved the network problems I was experiencing by changing
the following .config options in the kernel:
# CONFIG_XEN_COMPAT_030002_AND_LATER is not set
# CONFIG_XEN_COMPAT_030004_AND_LATER is not set
# CONFIG_XEN_COMPAT_030100_AND_LATER is not set
# CONFIG_XEN_COMPAT_030200_AND_LATER is not set
# CONFIG_XEN_COMPAT_030300_AND_LATER is not set
CONFIG_XEN_COMPAT_LATEST_ONLY=y
(Was CONFIG_XEN_COMPAT_030002_AND_LATER=y)
CONFIG_XEN_NETDEV_TX_SHIFT=10
(Was CONFIG_XEN_NETDEV_TX_SHIFT=8)
James
This message and the information contained herein is proprietary and
confidential and subject to the Amdocs policy statement,
you may review at http://www.amdocs.com/email_disclaimer.asp
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