kib 57b709f4b4 Extend ap_boot_mtx scope to also cover mca_init().
Otherwise, under bootverbose, the lapic_enable_cmc() banner 'lapicX:
CMCI unmasked' is printed by several CPUs in parallel, causing garbled
output for the LAPIC dumps.

Reported by:	royger
Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D15157
2018-04-24 20:33:08 +00:00
..
2018-03-17 01:40:09 +00:00