Waking up CPU 61 (dev=85d)
Adding CPU 61, hwref=85d, awake=1
Waking up CPU 62 (dev=85e)
Adding CPU 62, hwref=85e, awake=1
Waking up CPU 63 (dev=85f)
Adding CPU 63, hwref=85f, awake=1
Back to init processor.
About to let go!
0p~a~n~i~c~:~ ~m~t~x~_~l~o~c~k~(~)~ ~b~y~ ~i~d~l~e~ ~t~h~r~e~a~d~ ~0~x~c
 0000000429f5a0 on sleep mutex vm map (system) @ /usr/src/sys/vm/vm_map.c:4066
cpuid = 1
time = 1
KDB: stack backtrace:
0xe000000143392910: at 0xc0000000029b6990 = .kdb_backtrace+0x5c
0xe000000143392a40: at 0xc000000002955c88 = .vpanic+0x1b4
0xe000000143392b00: at 0xc000000002955e70 = .kassert_panic+0x108
0xe000000143392bb0: at 0xc000000002936798 = .__mtx_lock_flags+0x7c
0xe000000143392c70: at 0xc000000002ca9dfc = ._vm_map_lock_read+0x34
0xe000000143392cf0: at 0xc000000002cabfb4 = .vm_map_lookup+0x94
0xe000000143392e20: at 0xc000000002ca25a8 = .vm_fault_hold+0x158
0xe000000143393030: at 0xc000000002ca49e0 = .vm_fault+0x94
0xe0000001433930e0: at 0xc000000002d266dc = .cpu_fetch_syscall_args+0x408
0xe000000143393190: at 0xc000000002d27afc = .trap+0x1058
0xe000000143393360: at 0xc000000002d1af48 = .powerpc_interrupt+0x220
0xe000000143393410: kernel DSI read trap @ 0x88 by 0xc00000000299d77c = .device_get_softc+0xc: srr1=0x9000000000001032
            r1=0xe0000001433936c0 cr=0x48004828 xer=0 ctr=0xc000000002d0e9d8 r2=0xc000000003748a58 sr=0x40000000
0xe0000001433936c0: at -0x4
0xe000000143393700: at -0x4
0xe000000143393780: at 0xc000000002d0e9ec = .opal_call+0x45c
0xe000000143393800: at 0xc000000002d24d30 = .platform_smp_ap_init+0x6c
0xe000000143393880: at 0xc000000002d1e464 = .machdep_ap_bootstrap+0x6c
0xe000000143393920: at 0xc0000000023e2740 = rstcodeend+0x60
KDB: enter: panic
[ thread pid 11 tid 100004 ]
Stopped at      0xc0000000029b655c = .kdb_enter+0x60:   ld      r2, r1, 0x28
db>