From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH 2/2] sata_nv: fix ATAPI issues with memory over 4GB (v3) Date: Tue, 20 Nov 2007 14:49:36 +0900 Message-ID: <47427570.5030103@gmail.com> References: <473A7677.6080007@shaw.ca> <473BA332.9030406@gmail.com> <473BC5DF.1040302@shaw.ca> <474230DC.8020308@gmail.com> <47426FDC.4030800@shaw.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from wa-out-1112.google.com ([209.85.146.179]:2710 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752484AbXKTFtm (ORCPT ); Tue, 20 Nov 2007 00:49:42 -0500 Received: by wa-out-1112.google.com with SMTP id v27so2255385wah for ; Mon, 19 Nov 2007 21:49:41 -0800 (PST) In-Reply-To: <47426FDC.4030800@shaw.ca> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Robert Hancock Cc: linux-kernel , ide , Jeff Garzik Robert Hancock wrote: > It looks like the problem is that even though we set the DMA mask after > we allocate the PRD and pad buffers, when the other port is set up, the > DMA mask is already over 64-bit and so it allocates its buffers over 4GB > and fails. I think we just need to explicitly set to 32-bit first, > getting the reporter to try that one now. Ah.. right. That makes sense. Thanks. -- tejun