Trying to mount root from zfs:zroot/ROOT/default []...

Fatal double fault:
eip = 0xc0dd913f
esp = 0xc478cffc
ebp = 0xc476d040
cpuid = 0; apic id = 00
panic: double fault
KDB: stack backtrace:
#0 0xc0b720f2 at kdb_backtrace+0x52
#1 0xc0b332cb at vpanic+0x11b
#2 0xc0b331ab at panic+0x1b
#3 0xc10554eb at dblfault_handler+0xab
Uptime: 3s