acpica5 issues

[Rahul Siddharthan <rsidd@xxxxxxxxx>]

OK, I'm still having problems with acpica5 in my kernel config.
Sometimes the boot hangs when probing the CD-ROM drive (freezes solid,
no response to keyboard); sometimes it gets past that but hangs when
loading the linux module.  Here, typing on keyboard echoes to the
screen and ctrl-alt-delete reboots, but is unable to sync buffers.  ^C
doesn't interrupt the linux module loading.  Sometimes, however, it
gets past this too and boots fully, and then I can use the system,
leave it running all night if needed, no problem.

There's no pattern I can make out in the above.  Every boot is a "cold
boot", after the system's been off for several hours (basically, after
I return from work).

As reported earlier, if I use a module instead of building it into the
kernel, I get random hangs.

---

Also, I have
kern.mmxopt=1
in /boot/loader.conf, but I only get

# egrep 'MMX|XXM' /var/run/dmesg.boot
  Features=0xbfebf9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>

none of the messages about using mmx optimised bcopy etc.   Is some
verbose booting option needed?

Rahul