That was very long ago - can't quite remember how I worked around it. Now running NetBSD 5.x on a number of (more modern) machines w/o any significant issue.
Synopsis: kernel hang NetBSD 1.5 with aic0, scsibus and ISA Adh 152
State-Changed-From-To: open->feedback State-Changed-By: dholland%NetBSD.org@localhost State-Changed-When: Fri, 27 Nov 2009 21:29:04 +0000 State-Changed-Why: Do you still have this card? Did it ever start working again, or is it still broken?