panic ixgbevf / SMP under high network load

[Gleb Smirnoff]

On Fri, Oct 26, 2012 at 11:09:20AM +0200, R?mi Pauchet wrote:
R> Hi
R> 
R> I have the same crash with FreeBSD 10-current
R> 
R> FreeBSD freebsd10 10.0-CURRENT FreeBSD 10.0-CURRENT #4 r241761: Sat Oct 20 07:40:33 UTC 2012     root at kaos.glenbarber.us:/usr/obj/usr/src/sys/GENERIC  amd64
R> 
R> Sorry for the screenshots: panic doesn't dump the memory to the swap, I can't figure out why
R> 
R> I use udp frames (size 700) so this load is not supposed to produce ip fragmentation.
R> 
R> And again, the panic happens with 4 vcpus, no issue with 1 vcpu.

r241761 predates conversion of the IPv4 stack to net byte order, which happened
in r241913.

Can you please try out your test on head r242077 or later?

-- 
Totus tuus, Glebius.