From mboxrd@z Thu Jan 1 00:00:00 1970 From: roychris Subject: Re: SCI interrupt handler : spend too much time Date: Thu, 04 Dec 2003 09:25:41 +0100 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <3FCEEF85.3050802@free.fr> References: <3ACA40606221794F80A5670F0AF15F8401720BF7@pdsmsx403.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="------------030202020103090408080302" Return-path: In-Reply-To: <3ACA40606221794F80A5670F0AF15F8401720BF7-4yWAQGcml64gGBtAFL8yw7fspsVTdybXVpNB7YpNyf8@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: "Yu, Luming" Cc: Pavel Machek , acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org This is a multi-part message in MIME format. --------------030202020103090408080302 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by esstin.uhp-nancy.fr id hB48TE7S007620 Personally, I think so. Yu, Luming a =E9crit : > Does it mean the overhead of SCI interrupt was not the root cause of=20 > this issue. --Luming > =20 > > -----Original Message----- > *From:* roychris [mailto:roychris-GANU6spQydw@public.gmane.org] > *Sent:* 2003?12?3? 20:49 > *To:* Pavel Machek > *Cc:* Yu, Luming; acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org > *Subject:* Re: [ACPI] SCI interrupt handler : spend too much time > > Just a precision, > synaptic driver is not like the other mouses. psmouse call a > specific fonction for this touchpad that is in an other module. > The problem happens since 2.6, since psmouse and synaptic had been > seperated.... > > Pavel Machek wrote: > >>Hi! >> >> =20 >> >>>It sound like serious one, if SCI interrupt handler was blamed for >>>this issue. --Luming >>> =20 >>> >> >>I investigated a bit, and interrupt latency alone is not enough to >>break mouse. [Unfortunately, I do not have easy/sure way to reproduce >>it.] >> >>Is it possible that SCI interrupt handler accesses keyboard controller >>(and breaks mouse?) >> Pavel >> >> >> >> =20 >> > --------------030202020103090408080302 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Personally, I think so.

Yu, Luming a écrit :
Does it mean the overhead of SCI interrupt was not the root cause of this issue. --Luming
 
-----Original Message-----
From: roychris [mailto:roychris@free.fr]
Sent: 2003年12月3日 20:49
To: Pavel Machek
Cc: Yu, Luming; acpi-devel@lists.sourceforge.net
Subject: Re: [ACPI] SCI interrupt handler : spend too much time

Just a precision,
synaptic driver is not like the other mouses. psmouse call a specific fonction for this touchpad that is in an other module.
The problem happens since 2.6, since psmouse and synaptic had been seperated....

Pavel Machek wrote:
Hi!

  
It sound like serious one, if SCI interrupt handler was blamed for
this issue.     --Luming
    

I investigated a bit, and interrupt latency alone is not enough to
break mouse. [Unfortunately, I do not have easy/sure way to reproduce
it.]

Is it possible that SCI interrupt handler accesses keyboard controller
(and breaks mouse?)
								Pavel


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