kernel panic by enabling net.inet.ip.random_id

[Gleb Smirnoff]

On Wed, Jan 06, 2016 at 01:24:53PM -0500, Shawn Webb wrote:
S> That's what gets toggled via the sysctl. I think I figured out that I
S> need to call ip_initid() in the SYSINIT. Compiling and testing now.

Right, that's the problem. You actually want VNET_SYSINIT().

Please next time you report a panic, don't say "I'm on latest HEAD on
amd64 in bhyve" when you are actually running a modified version. It
took me about 10 minutes pondering into your backtrace in initial
post and into ip_id.c. Then I went on reading thread further and
discovered that I was reading wrong ip_id.c

-- 
Totus tuus, Glebius.