From mboxrd@z Thu Jan 1 00:00:00 1970 From: roychris Subject: Re: SCI interrupt handler : spend too much time Date: Wed, 03 Dec 2003 13:49:04 +0100 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <3FCDDBC0.8010009@free.fr> References: <3ACA40606221794F80A5670F0AF15F8401720BEF@pdsmsx403.ccr.corp.intel.com> <20031203124720.GA11239@atrey.karlin.mff.cuni.cz> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="------------090008090002030306000403" Return-path: In-Reply-To: <20031203124720.GA11239-jyMamyUUXNJG4ohzP4jBZS1Fcj925eT/@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Pavel Machek Cc: "Yu, Luming" , acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org This is a multi-part message in MIME format. --------------090008090002030306000403 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit 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 > > > > > --------------090008090002030306000403 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit 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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