Instability on amd64 -current

[Paul Goyette <paul%whooppee.com@localhost>]

I've updated a couple of my systems to -current built from sources 
checked out on 2012-01-07 at 01:47:13 ...

The systems are quite unstable, with random "hangs" occurring, usually 
when the system is under a bit of a load (such as while running the 
/etc/daily job).  When the system hangs, the console monitor is totally 
black (there is, however, still a valid video output, since the monitor 
is able to acheive sync).

On one system, X was running, although I had switched the wsconsole to 
the console display with Ctrl/Alt/F1.  On another system, no X was 
running.  The instability occurs both with my own custom kernel and with 
GENERIC.

On the non-X system, the most recent hang was especially interesting! 
When I manually reset the machine, the BIOS could not find the boot 
device wd0.  I actually had to remove mains power from the machine and 
then re-boot before it saw the hard drive!

Any suggestions?



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