Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!rice!sun-spots-request
From: sja@sirius.hut.fi (Sakari Jalovaara)
Newsgroups: comp.sys.sun
Subject: Keyboard hangs
Keywords: Miscellaneous
Message-ID: <5562@brazos.Rice.edu>
Date: 7 Mar 90 13:52:13 GMT
Sender: root@rice.edu
Organization: Sun-Spots
Lines: 31
Approved: Sun-Spots@rice.edu
X-Sun-Spots-Digest: Volume 9, Issue 72, message 12

(Sun 3/50, SunOS 4.0.3)

Sometimes when X (MIT "example" X11R3 and X11R4) exits, the keyboard first
sends random characters and then freezes completely.  This has happened
several (10..20) times on our dozen Suns.

I have tried the following:

	kbd_mode -a			no effect
	stty sane >/dev/console		hangs
	echo foo >/dev/console		nothing appears on the console
	kill -9 [getty PID]		new getty appears, kbd still hung
	fastboot			fixes
	rsh [machine] xinit		X works; keyboard still dead when
					X exits
	rsh [machine] suntool		suntools works; keyboard still
					dead when suntools exits
	L1-A C				abort works (goes to the ROM
					monitor); keyboard still dead
					after C(ontinue)
	disconnect and reconnect
		the keyboard		no effect
	kill -9 [getty pid]; trace -p [new getty PID]
					This cures the keyboard!  Trace
					sometimes does magical things...

This might (read: "gut feeling") be streams-related; "netstat -m" reports
lots (hundreds or thousands) of allocation failures after keyboard hangs.

Has anyone else seen this?  Is there a fix?
									++sja