Excerpts from netbsd: 3-May-96 IBCS2 Emulation panics Don
Youdale@enigma.net (1400*)

> 'Panic: ibcs2_read'

> Has anyone come across this before? Can someone suggest a way to return the
> NetBSD system i386 ibcs2 emulation to the level it was at in NetBSD-current
> in early to middle 1995?

I had similar panics a while ago when I tried to run
WordPerfect (finally without success becouse of license manager complaints
about time differences between application and license daemon).
This panics were fixed by a minimal patch in ibcs2_misc.c. I'm not very
sure if this is a clean solution, but it helped.
For the patch, look at pr kern/1804.

best regards
Matthias