From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nivedita Singhvi Subject: Re: Changing real time priority of interrupt handler thread Date: Wed, 05 May 2010 11:37:14 -0700 Message-ID: <4BE1BADA.3040902@us.ibm.com> References: <20100505130845.GA9118@rivendell> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-rt-users@vger.kernel.org To: Raphael Hertzog Return-path: Received: from e37.co.us.ibm.com ([32.97.110.158]:43170 "EHLO e37.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753576Ab0EEShb (ORCPT ); Wed, 5 May 2010 14:37:31 -0400 Received: from d03relay02.boulder.ibm.com (d03relay02.boulder.ibm.com [9.17.195.227]) by e37.co.us.ibm.com (8.14.3/8.13.1) with ESMTP id o45IZqox015744 for ; Wed, 5 May 2010 12:35:52 -0600 Received: from d03av04.boulder.ibm.com (d03av04.boulder.ibm.com [9.17.195.170]) by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v9.1) with ESMTP id o45IbJNS238876 for ; Wed, 5 May 2010 12:37:22 -0600 Received: from d03av04.boulder.ibm.com (loopback [127.0.0.1]) by d03av04.boulder.ibm.com (8.14.3/8.13.1/NCO v10.0 AVout) with ESMTP id o45IbFwX022277 for ; Wed, 5 May 2010 12:37:15 -0600 In-Reply-To: <20100505130845.GA9118@rivendell> Sender: linux-rt-users-owner@vger.kernel.org List-ID: Raphael Hertzog wrote: > In case it was not clear, I want to run the IRQ handler of the serial > ports at a higher priority than the other ones (like network, disk, > etc.) to avoid buffer overruns. Have you tried using the rtctl utility and the /etc/rtgroups file? thanks, Nivedita