panic: acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock
Starting stack trace...
panic(ffffffff828eb212) at panic+0x16f sys/kern/subr_prf.c:229
witness_checkorder(ffffffff82e81230,9,0) at witness_checkorder+0xd03 witness_debugger sys/kern/subr_witness.c:2524 [inline]
witness_checkorder(ffffffff82e81230,9,0) at witness_checkorder+0xd03 sys/kern/subr_witness.c:786
__mp_lock(ffffffff82e81028) at __mp_lock+0xa2 read_rflags machine/cpufunc.h:195 [inline]
__mp_lock(ffffffff82e81028) at __mp_lock+0xa2 intr_disable machine/cpufunc.h:216 [inline]
__mp_lock(ffffffff82e81028) at __mp_lock+0xa2 sys/kern/kern_lock.c:142
intr_handler(ffff80002a2497b0,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539