From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boaz Harrosh Subject: Re: Why is AHA152X_CS !64BIT? Date: Mon, 30 Aug 2010 14:13:17 +0300 Message-ID: <4C7B924D.6030703@panasas.com> References: <4C72D310.4040004@suse.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from daytona.panasas.com ([67.152.220.89]:50599 "EHLO daytona.int.panasas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752058Ab0H3LNW (ORCPT ); Mon, 30 Aug 2010 07:13:22 -0400 In-Reply-To: <4C72D310.4040004@suse.cz> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Jiri Slaby Cc: fischer@linux-buechse.de, linux-scsi@vger.kernel.org, Randy Dunlap On 08/23/2010 10:59 PM, Jiri Slaby wrote: > Hi, > > I see that the aha152x driver for pcmcia is marked as unsupported on > 64bit. But I also see a patch [1] which removes the restriction based on > user's testing in bugzilla [2]. > > Is there a reason why it would have to be marked as !64BIT? I'm asking > because there is an opensuse user with this card who updated to 64-bit > distro and lost this driver thereafter. > > [1] http://kerneltrap.org/mailarchive/linux-scsi/2010/3/6/6832393 > [2] https://bugzilla.kernel.org/show_bug.cgi?id=14333 > > thanks, If memory serves correctly, it might be that you need more then 4 Gbyte of memory installed to exercise the bug, something about IO bouncing addresses > 4G. But don't believe me, I might be imagining things ;-) Boaz