WARN_PANIC
WITNESS_WARN(WARN_PANIC, NULL, "vm_smp_rendezvous");
WITNESS_WARN(WARN_GIANTOK|WARN_SLEEPOK|WARN_PANIC, NULL, "unexpected non-sleepable lock"); \
WITNESS_WARN(WARN_PANIC, NULL, "process (pid %d) exiting", p->p_pid);
WITNESS_WARN(WARN_PANIC, NULL, "suspending ithread");
WITNESS_WARN(WARN_PANIC, NULL, "userret: returning");
WITNESS_WARN(WARN_PANIC, NULL, "Returning to user mode");
if (flags & WARN_PANIC && n)