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SubjectOn Thu, 12 Aug 1999, Rik van Riel wrote:

>I think I may have found a clue in the bezerk keyboard/mouse
>problem. I found it before, but just did not think about it :(
>
>When the bezerk mouse thing happens, the mouse appears to move
>in random directions, but when looking at the keyboard variant
>closely, you'll see that it's not random at all.
>
>It just repeats the information found in other places in the
>ring buffer -- never leaving the ring buffer for garbage memory,
>but just being confused about it's own whereabouts in the ring
>buffer.
>
>Now could that mean that a pointer inside the ring buffer was
>incremented twice, going to just _in front_ of where new data
>is deposited? (or something like that)

Just to add to the amount of gathered data about mouse problems:


I have a Logitech Mouseman+ Wheel. This is the FOUR button one
with the button on the side and the middle button is also a
wheel. RedHat 6.0 sets it as "pnp" for the type with GPM,
however my /var/log/messages file gets gpm errors printed in it
all day long. Some times it says "message repeated 238 times"
and stuff like that.

The mouse WORKS fine. No noticeable problems, but the errors in
the log make the log grow fast. Note that there are bootleg
mice like this, and I know mine is NOT a bootleg. It is an
official Logitech mouse (just so nobody tells me my mouse is
broken and a clone bootleg).

If anyone thinks that this might also be related to the problems
with mice, I would be glad to send syslog chunks, and any other
debugging info I can to aide in this matter. Re: bezerk keyboard/mouse
clue
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Mike && Rik van Riel,
>I think I may have found a clue in the bezerk keyboard/mouse
>problem. I found it before, but just did not think about it :(
>When the bezerk mouse thing happens, the mouse appears to move
>in random directions, but when looking at the keyboard variant
>closely, you'll see that it's not random at all.
>It just repeats the information found in other places in the
>ring buffer -- never leaving the ring buffer for garbage memory,
>but just being confused about it's own whereabouts in the ring
>buffer.

there is definately some buffer getting corrupted with the bezerko
mouse. However do make sure that you are NOT running gpm while running
X.

>however my /var/log/messages file gets gpm errors printed in it
>all day long. Some times it says "message repeated 238 times"
>and stuff like that.

do a gpm -k if you are in X and getting these messages. I wrote a
script and posted it to one of these lists that checked if gpm was
running and then stopped it before starting X, but not sure which X
startup script this should have gone into...

something like

if [ps -aux|grep gpm |grep -v grep] then
gpm -k
fi

If your mouse is working fine, I would not worry. the best thing to
do is see some of my other posting to this list about the mouse bug. it
is well described

Also try 2.2.11 as there were many keyboard, serial, and irq fixes.

Incidentally I have switched to a ps/2 mouse and 2.2.11 and have not
had the problem since.

Joe


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