Date: Mon, 21 Apr 1997 05:30:04 -0700 (PDT) From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> To: freebsd-bugs Subject: Re: i386/3082: keyboard locks up unexpectedly Message-ID: <199704211230.FAA10302@freefall.freebsd.org>
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The following reply was made to PR i386/3082; it has been noted by GNATS.
From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
To: raj@iphase.com
Cc: FreeBSD-gnats-submit@freebsd.org, yokota@zodiac.mech.utsunomiya-u.ac.jp
Subject: Re: i386/3082: keyboard locks up unexpectedly
Date: Mon, 21 Apr 1997 21:28:25 +0900
>>Number: 3082
>>Category: i386
>>Synopsis: keyboard locks up unexpectedly
[....]
>>Release: FreeBSD 2.1.6 i386
>>Environment:
>
> Pentium pro system.
> FreeBSD 2.1.6 installed with default sc0 console in config file.
> Lines for PS/2 and bus mice commented out in the config file.
>
> Execution of "uname -a" produced the following output:
>
> FreeBSD lifeson 2.1.6-RELEASE FreeBSD 2.1.6-RELEASE #4:
> root@lifeson:/usr/src/sys/compile/lifeson i386
>
>>Description:
>
> System locks up unexpectedly. There's no set pattern to this.
> When this happens, any sort of input from the keyboard becomes
> impossible. Even Ctl-C doesn't work. Actually no key works.
This is a known problem. It's intermittent and difficult to reproduce.
When this happens again, login to the system via serial or network and
try the following command.
kbdcontrol -r fast < /dev/ttyv0
(You may have to become root to do this.)
The command actually changes the keyboard typematic rate and it
doesn't do anything special to recover from lock up, but, the keyboard
MAY become functional as a side effect under FreeBSD 2.1.X.
If you are using X and a PS/2 mouse when the lock up happens and run
the above command, the PS/2 mouse may go wild. This is harmless.
Switch away from X to another vty (by pressing Ctl+Alt+Fn, yes, I
expect the keyboard is working again after the kbdcontrol command) and
come back to X, then the mouse should be OK.
Hope this might help.
Kazu
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