Dtrace panic'ed

[Artem Belevich]

> --- trap 0xc, rip = 0xffffffff80e33187, rsp = 0xfffffffe4004aa70, rbp =
> 0xfffffffe4004aa80 ---
> cyclic_disable_xcall() at cyclic_disable_xcall+0x7
> smp_rendezvous_action() at smp_rendezvous_action+0xb3
> Xrendezvous() at Xrendezvous+0x64

It seems to be the same issue that few other folks including myself
have seen. Search -current archives around October for 'hotkernel in
the subject.

By the way, if you dump stack tracess for all processes, do you see
any of them in smp_tlb_shootdown ?

--Artem