Thanks for the good news, Philip. Before posting the bug report I had looked in anonymous CVS at kern_exit.c (where the WCHAN string occurs) and saw no changes since 5.2 that seemed to correspond to my problem. However, with no prior experience with BSD kernel internals, I didn't attempt to look farther afield.
I've never built an OpenBSD kernel from source before, but now I have a reason to. Having done FreeBSD kernel builds, however, I have no fears. Thanks, -Paul
