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From: Jens Axboe <axboe@suse.de>
To: Dave Jones <davej@codemonkey.org.uk>,
	vojtech@suse.cz, Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: PS2 mouse going nuts during cdparanoia session.
Date: Wed, 16 Jul 2003 19:03:52 +0200	[thread overview]
Message-ID: <20030716170352.GJ833@suse.de> (raw)
In-Reply-To: <20030716165701.GA21896@suse.de>

On Wed, Jul 16 2003, Dave Jones wrote:
> I've decided to oggify my CD collection, and every now and
> again, the mouse pointer goes bezerk is if I had been
> shaking it around and randomly clicking on things.
> In the logs are lots of..
> 
> psmouse.c: Lost synchronization, throwing 3 bytes away.
> 
> It only happens whilst cdparanoia is reading from the CD.
> The IDE CD drive is using DMA, and interrupts are unmasked.
> according to the logs, its happened 32 times since I last
> booted..  /proc/interrupts shows that the i8042 is using
> a different interrupt to the IDE devices..
> 
> Mouse is a logitech wheely PS/2 mouse, using ImPS/2 protocol
> in X config reading from /dev/psaux.
> 
> This is using 2.6test1, I'don't recall ever seeing this
> happen in 2.4, but it did occur for a while earlier in 2.5,
> and I forgot about it until now.
> 
> Any ideas?

Yes. You can try and make the situation a little better by unmasking
interrupts with -u1. Or you can try and use a ripper that actually uses
SG_IO, that way you can use dma (and zero copy) for the rips. That will
be lots more smooth.

-- 
Jens Axboe


  reply	other threads:[~2003-07-16 16:49 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-16 16:57 PS2 mouse going nuts during cdparanoia session Dave Jones
2003-07-16 17:03 ` Jens Axboe [this message]
2003-07-16 17:09   ` Dave Jones
2003-07-16 17:13     ` Jens Axboe
2003-07-16 17:20       ` Dave Jones
2003-07-16 17:24         ` Jens Axboe
2003-07-16 17:21     ` Markus Plail
2003-07-16 17:10   ` Alan Cox
2003-07-16 17:16     ` Jens Axboe
2003-07-16 17:23       ` Dave Jones
2003-07-16 17:25         ` Jens Axboe
2003-07-16 17:28           ` Dave Jones
2003-07-16 17:31             ` Jens Axboe
2003-07-16 18:22               ` Alan Cox
2003-07-16 19:03               ` Kristofer T. Karas
2003-07-16 19:13                 ` Valdis.Kletnieks
2003-07-16 19:00         ` Vojtech Pavlik
2003-07-16 19:30           ` Dave Jones
2003-07-16 20:53             ` Vojtech Pavlik
2003-07-16 23:31               ` Dave Jones
2003-07-16 23:47                 ` Vojtech Pavlik
2003-07-17 11:15                   ` Alan Cox
2003-07-17 17:08                     ` Dave Jones
2003-07-16 18:00     ` Andrew Morton
2003-07-16 18:56     ` Vojtech Pavlik
2003-07-16 21:05     ` Andries Brouwer
2003-07-16 17:10   ` Valdis.Kletnieks
2003-07-16 17:17     ` Jens Axboe
2003-07-16 17:55       ` Dave Jones
2003-07-16 17:57         ` Jens Axboe
     [not found]         ` <1058422511.1164.1440.camel@workshop.saharacpt.lan>
2003-07-17 12:39           ` Dave Jones
2003-07-16 23:43 Mikael Pettersson
2003-07-17  2:03 ` Jacek Kawa
2003-07-17 21:44   ` Jacek Kawa

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