From mboxrd@z Thu Jan 1 00:00:00 1970 From: ANISH KUMAR Subject: Re: DMA interrupt not getting triggered Date: Fri, 05 Feb 2010 08:44:05 +0000 (GMT) Message-ID: <24512548.721341265359445661.JavaMail.weblogic@epml09> Reply-To: anish.singh@samsung.com Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mailout2.samsung.com (mailout2.samsung.com [203.254.224.25]) by alsa0.perex.cz (Postfix) with ESMTP id 4119A1038BC for ; Fri, 5 Feb 2010 09:44:08 +0100 (CET) Received: from ep_ms13_bk (mailout2.samsung.com [203.254.224.25]) by mailout1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0KXD00FXB1LHVE@mailout1.samsung.com> for alsa-devel@alsa-project.org; Fri, 05 Feb 2010 17:44:05 +0900 (KST) Received: from ep_spt02 (ms13.samsung.com [203.254.225.109]) by ms13.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0KXD006471LHF2@ms13.samsung.com> for alsa-devel@alsa-project.org; Fri, 05 Feb 2010 17:44:05 +0900 (KST) Content-return: prohibited MIME-version: 1.0 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Ben Dooks Cc: "alsa-devel@alsa-project.org" List-Id: alsa-devel@alsa-project.org >Which board are you trying this on? S3C6410 >There may be some improvements with the DMA code in newer kernels, it would >be worth trying 2.6.33 and seeing if that has the same problem. There was >a problem with the circular DMA code failing to be fully merged which caused >problems including a resource exhaustion. Ben it would be very difficult to take the entire change.There are lot of efforts already gone into to make it stable. Can you please tell me which all changes exactly is required to get rid of this problem?As to what all the files that needs merging as i am not a kernel expert. or Can you give me some patch that would solve this problem?