[ovs-discuss] Kernel soft lockups in Xen 5.6

[Jesse Gross]

On Fri, Mar 9, 2012 at 1:33 PM, David Erickson <derickso at stanford.edu> wrote:
> Hey guys-
> We've been seeing some occasional soft lockups on some of our Xen boxes
> reporting messages like the following:
>
> BUG: soft lockup - CPU#3 stuck for 80s! [ovs-vswitchd:4950]
> BUG: soft lockup - CPU#0 stuck for 80s! [netback/0:1126]
> BUG: soft lockup - CPU#2 stuck for 91462s! [tapdisk2:8473]
>
> I'm running OVS that is slightly pre 1.2, I intend to try 1.2.2 but just
> thought I'd check and see if this was a known issue or not that was fixed.

It's certainly not a known issue but I don't see anything here that
really indicates that it's related to OVS.  It's probably a more
general issue somewhere in the Xen kernel.