Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757440Ab0KPT1V (ORCPT ); Tue, 16 Nov 2010 14:27:21 -0500 Received: from palinux.external.hp.com ([192.25.206.14]:48490 "EHLO mail.parisc-linux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753528Ab0KPT1U (ORCPT ); Tue, 16 Nov 2010 14:27:20 -0500 Date: Tue, 16 Nov 2010 12:27:19 -0700 From: Matthew Wilcox To: Wolfgang Denk Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Unloading sym53c8xx driver causes ___free_dma_mem_cluster warnings Message-ID: <20101116192718.GC6178@parisc-linux.org> References: <20101116191309.DD04C14E644@gemini.denx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20101116191309.DD04C14E644@gemini.denx.de> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1059 Lines: 25 On Tue, Nov 16, 2010 at 08:13:09PM +0100, Wolfgang Denk wrote: > Hi, > > when unloading the sym53c8xx driver a number of kernel warning > messages are printed: Yes, this is well known (if you search the scsi archives, you'll find several previous reports). It's harmless -- the only place it could hurt is on ARM, and I've never heard of anyone plugging a sym2 card into an ARM machine. The fix would be quite involved, and the driver really isn't worth fixing -- the hardware tops out at 160 MB/s which is an order of magnitude lower performance than the hardware I'm currently working on. -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/