If the kernel is not built with DEBUG_REDZONE, server crashes deterministically during boot. The buffer that is being overrun is never freed, so redzone(9) never gets a chance to dump a stack trace identifying where it was allocated. Fix: Unknown. How-To-Repeat: Try to boot 9-stable without DEBUG_REDZONE.
Responsible Changed From-To: freebsd-bugs->freebsd-scsi Over to maintainer(s).