arprequest triggered panic

[Marko Zec]

On Wednesday 23 November 2011 14:17:11 Nikos Vassiliadis wrote:
> On 11/23/2011 1:22 PM, Gleb Smirnoff wrote:
> > I'd suspect VIMAGE. Can you please try w/o it and if it appears to be
> > VIMAGE-related, then please file a PR.
>
> It seems VIMAGE related. I'll ask at virtualization at .

From the backtrace it looks like the curvnet context is not properly set in a 
timer-driven call graph originating at lagg_port_setlladdr().

Perhaps this (untested) patch could help:

--- //depot/user/zec/vimage_8/src/sys/net/if_lagg.c     2011-09-06 
05:45:07.000000000 0000
+++ /u/marko/p4/zec/vimage_8/src/sys/net/if_lagg.c      2011-09-06 
05:45:07.000000000 0000
@@ -468,7 +468,9 @@
                ifp = llq->llq_ifp;
 
                /* Set the link layer address */
+               CURVNET_SET(ifp->if_vnet);
                error = if_setlladdr(ifp, llq->llq_lladdr, ETHER_ADDR_LEN);
+               CURVNET_RESTORE();
                if (error)
                        printf("%s: setlladdr failed on %s\n", __func__,
                            ifp->if_xname);