Use normal kernel stack for #BP exceptions.  Fixes PR 4562. ok weingart@, deraadt@
Use normal kernel stack for #BP exceptions.  Fixes PR 4562.
ok weingart@, deraadt@

Fix from myself, via NetBSD.  Duh!

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars