From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: DMA breakage in 2.6.29-rc* Date: Fri, 30 Jan 2009 16:46:11 +1100 Message-ID: <1233294371.18767.23.camel@pasglop> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from gate.crashing.org ([63.228.1.57]:60269 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751111AbZA3FqR (ORCPT ); Fri, 30 Jan 2009 00:46:17 -0500 Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Bartlomiej Zolnierkiewicz Cc: list linux-ide Hi Bart ! On a bunch of pmac's, I'm getting lost interrupts when trying to do DMA with ide hard disks (first time at boot when reading the partition table). It then times out, reverts to PIO and boots fine. Haven't had time to fully bisect yet, but it seem to be somewhere in the pile of IDE patches (surprise :-) that went in around that time. I'll dig more next week, but in the meantime, I though you may have a possible candidate in mind. Cheers, Ben.