From: Vojtech Pavlik <vojtech@ucw.cz>
To: Andrew Morton <akpm@digeo.com>
Cc: Yoann <linux-yoann@ifrance.com>,
linux-kernel@vger.kernel.org, Vojtech Pavlik <vojtech@suse.cz>,
"Albert D.Cahalan" <acahalan@cs.uml.edu>
Subject: Re: another must-fix: major PS/2 mouse problem
Date: Wed, 4 Jun 2003 09:47:37 +0200 [thread overview]
Message-ID: <20030604094737.C5345@ucw.cz> (raw)
In-Reply-To: <20030603232155.1488c02f.akpm@digeo.com>; from akpm@digeo.com on Tue, Jun 03, 2003 at 11:21:55PM -0700
On Tue, Jun 03, 2003 at 11:21:55PM -0700, Andrew Morton wrote:
> We believe that it may be due to the ethernet driver holding interrupts off
> for too long when the traffic is heavy.
Note that this doesn't necessarily mean that the ethernet driver
disables the interrupts for a too long time, it just means that the
computer is only servicing the network interrupts at that time, and
since the mouse interrupt does have a lower priority, it's serviced
not very often and with huge delays.
In such a case the network driver should either use interrupt mitigation
if the cards supports it (reading many packets per one interrupt) or
switch to a polled mode.
> Does that seem to match your observations? Does the problem happen when
> the net traffic is high?
>
> Which ethernet driver are you using?
--
Vojtech Pavlik
SuSE Labs, SuSE CR
next prev parent reply other threads:[~2003-06-04 7:34 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-01 1:46 another must-fix: major PS/2 mouse problem Albert Cahalan
2003-06-04 5:47 ` Yoann
[not found] ` <20030603232155.1488c02f.akpm@digeo.com>
2003-06-04 7:47 ` Vojtech Pavlik [this message]
2003-06-04 7:53 ` Andrew Morton
2003-06-04 8:00 ` Vojtech Pavlik
2003-06-04 8:14 ` Andrew Morton
2003-06-04 8:40 ` Vojtech Pavlik
2003-06-04 19:20 ` Yoann
2003-06-04 23:09 ` Albert Cahalan
[not found] ` <3EDCF47A.1060605@ifrance.com>
[not found] ` <1054681254.22103.3750.camel@cube>
[not found] ` <3EDD8850.9060808@ifrance.com>
2003-07-23 0:44 ` Albert Cahalan
2003-07-24 17:30 ` Andrew Morton
2003-07-25 1:46 ` Albert Cahalan
2003-07-26 3:19 ` Andrew Morton
2003-07-26 15:16 ` Zwane Mwaikambo
2003-07-29 2:55 ` Albert Cahalan
2003-07-29 3:14 ` Andrew Morton
2003-07-29 12:40 ` Albert Cahalan
2003-07-29 18:58 ` Andrew Morton
2003-07-29 19:36 ` Zwane Mwaikambo
2003-07-29 19:43 ` Chris Friesen
2003-07-30 5:08 ` Pavel Machek
2003-07-30 6:32 ` Andrew Morton
2003-07-30 12:29 ` Albert Cahalan
2003-07-30 19:18 Mikael Pettersson
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