----- Original Message -----
 While testing my search patch, I kicked off an unconstrained
physical
 search on a live session and hung the machine so thoroughly that it
 required a visit to the machine room to physically unplug it to get the
 remote console back up. Coincidence? Or should physical address search
 on a live session be constrained somehow for safety?
 
 Bob Montgomery 
Maybe so -- I had no problem with any of the systems I've tested it on.
Is it always reproducible on that system?
And does that system use /dev/mem or /dev/crash?
It would be interesting to know if a particular physical address caused it,
or if there are physical pages that are read that are *not* read when an 
unconstrained kernel virtual search is done?
Dave