SunView crashes machine

[91erm at bigbird.cc.williams.edu]

A user had a strange experience this morning.  He logged into his 3/50
normally (a 4Meg mono under SunOS 4.0.1 w/ YAPT 5.5c) and sunview began to
start.  Before it finished, the system crashed, dumping core, with the
following error message:

	kbdcmd: can't allocate block for command
	panic: conskbdioctl: can't allocate KIOCGDIRECT response

I've poked around in the core dump enough to be fairly certain that it was
the sunview process which actually issued the KIOCGDIRECT ioctl that
caused the crash.

Has anyone else seen something like this ?  Ideas on what causes it ?
Tips on how to further analyse the core (I'm a bit rough when it comes to
adb, and rougher still with kernel debugging) ?

Thanks,

Evan R. Moore
Academic Computing Group
Williams College
91erm at bigbird.cc.williams.edu