From owner-freebsd-stable  Sat Apr 25 21:03:42 1998
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To: garman@earthling.net
Cc: stable@FreeBSD.ORG, yokota@zodiac.mech.utsunomiya-u.ac.jp
Subject: Re: missed keyboard interrupts? 
In-Reply-To: Your message of "Sun, 11 May 1997 10:10:21 -0400."
             <Mutt.19970511101021.garman@jason.garman.net> 
References: <Mutt.19970511101021.garman@jason.garman.net> 
Date: Sun, 26 Apr 1998 13:12:04 +0900
From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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>I just upgraded my machine to a PII/300... running 2.2.6-stable cvsupped
>as of a couple days ago.
>
>The trouble is that now, under "medium" load (say 500-600 interrupts/sec)
>the keyboard loses a _significant_ amount of interrupts (say compiling a
>kernel in the background makes the keyboard unusable)
>
>even with a "nonexistent" load (100-300 int/sec) occassionally a character
>will be lost.
>
>This is the same keyboard that worked fine with my old system (a p150)
>
>Is this a freebsd problem?  Or does this lie elsewhere?
>
>The board is an ABIT with intel 440LX chipset.

In what configuration and environment does this happen? Are you
running X? If so, which video card and X server do you use?

Do you use a PS/2 mouse?

Would you compile a kernel with the following option?

option	"KBDIO_DEBUG=2"

The kernel with this option will generate quite a number of debug
messages. You will see many lines like:

kbdio: kbd q: N calls, max M chars, aux q: X calls, max Y chars

I would like to know what the above lines look like in your machine.

Kazu
yokota@freebsd.org

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