I have experienced kernel hangs w/ -current snapshots on Athlon 64 X2 and Sempron boxes. Both GENERIC and GENERIC.MP snapshots exhibit the hang. Once hung, the boxes don't respond to pings; however, keyboard LEDs toggle as expected and I can enter ddb from the keyboard. kernel/5777 [1] has the full problem report including dmesgs and ddb logs. The hang is reproducible by building the eclipse-sdk port.
This problem has developed fairly recently (within the past month or so). A similar box (w/ Opteron 165) runs -current i386 GENERIC.MP snapshots and is able to do the same port builds without hanging. It seems the forementioned kernel hang doesn't affect the i386 variant. I would be happy to provide additional information that would help analyze and resolve the problem. [1] <http://cvs.openbsd.org/cgi-bin/query-pr-wrapper?full=yes&textonly=yes&numbers=5777>
