panic: vm_fault failed: %lx error 1 (from arm64::data_abort)

Hi,

on an unattended console after updating the machine (previious builds were Dec 23) did not come back up.
I have a few last lines.

  esr:   96000004
panic: vm_fault failed: <addr> error 1
cpuid = 0
time = 1
KDB: stack backtrace:
..
data_abort()
..
--- exception, esr 0x96000004
thread_init()
keg_alloc_slap()
zone_import()
cache_alloc()
cace_alloc_retry()
thread_alloc()
fork()
kproc_create()
audit_worker_init()
mi_startup()
virtdone()


-- 
Bjoern A. Zeeb                                                     r15:7