I tried my kernel module with a full FreeBSD 4.6.2 system (rather than one running in VMWare), and I still got it to crash in the same method. I guess that rules out VMWare. I'll update you all again this weekend. See ya, Ben -- Benjamin Johnson <bsjohnso at midway.uchicago.edu> "I do not fear computers. I fear the lack of them." - Isaac Asimov