ZFS filesystem version: 5
ZFS storage pool version: features support (5000)
Timecounter "timebase" frequency 512000000 Hz quality 0
Event timer "decrementer" frequency 512000000 Hz quality 1000
Timecounters tick every 1.000 msec
usbus0: 5.0Gbps Super Speed USB v3.0
ugen0.1: <0x104c XHCI root HUB> at usbus0
uhub0: <0x104c XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
panic: sleepq_broadcast: invalid NULL wait channel
cpuid = 0
time = 1
KDB: stack backtrace:
0xc0080000974ce400: at kdb_backtrace+0x64
0xc0080000974ce510: at vpanic+0x25c
0xc0080000974ce5c0: at panic+0x3c
0xc0080000974ce5f0: at sleepq_broadcast+0xc0
0xc0080000974ce670: at wakeup+0x40
0xc0080000974ce6f0: at opal_wait_completion+0x1cd4
0xc0080000974ce770: at hhook_head_is_virtualised_lookup+0x924
0xc0080000974ce860: at fork_exit+0xbc
0xc0080000974ce8f0: at fork_trampoline+0x18
0xc0080000974ce920: at -0x4
KDB: enter: panic
[ thread pid 12 tid 100320 ]
Stopped at      kdb_enter+0x78: ori     r0, r0, 0x0
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