On Mon, May 17, 2010 at 09:58:17AM -0400, Michael D Labriola wrote:
> I'm having some pretty ugly lockups with both the current xen/master and
> xen/stable kernels in both Xen 3.4.2 and 4.0. These crashes are only
> happening on one specific box. The specific hardware is:
>
Have you specifically used xen/stable-2.6.32.x branch?
I think it's different from xen/stable.
-- Pasi
> mobo: Intel dp55kg
> cpu: Intel Core i5 570 (quad-core)
> ram: 4GB DDR3
> nic: onboard e1000e
>
> Everything (dom0, all domUs) is running 32bit. I'm not passing any PCI
> cards through. Nothing fancy, here.
>
> 1. If dom0 receives multicast traffic from its domUs. This seems to only
> happen if I have multiple domUs with at least one of them sending out
> multicast traffic to an address that dom0 is listening on. Just write a
> simple app to listen on a multicast socket and send traffic to that
> channel on at least 1 domU, and dom0 kernel panics. The panic message
> seems to always have 'invalid opcode: 0000', pid: 0, comm: swapper, EIP at
> gnttab_copy_grant_pageon, with a call trace containing some variant of a
> list of network related functions (net_tx_action, netif_page_release,
> e1000_clean, etc).
>
> 2. If dom0 creates an XDMCP session to one of its domUs. This is really
> strange. Even running w/out KMS using the plain old vesa driver, if you
> turn off opaque window moving and drag a window around the dom0 kernel
> panics. Also, if you let xscreensaver fade to black the dom0 kernel
> panics.
>
> Both these problems ONLY happen when the domUs in question are running on
> the dom0 (ie, XDMCP into a domU hosted by a different dom0 works
> perfectly). Also, both crashes happen regardless of how many vcpus dom0
> has (ie, dom0_max_vcpus=1).
>
> Any ideas?
>
> -Mike
>
> PS - Wouldn't you know, this particular box doesn't have any serial ports.
> I'm overnighting a PCI serial cards so I can capture the panic messages
> and send them to the list, too.
>
> ---
> Michael D Labriola
> Electric Boat
> mlabriol@xxxxxxxx
> 401-848-8871 (desk)
> 401-848-8513 (lab)
> 401-316-9844 (cell)
>
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