From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: [PATCH] ipr: don't doublefree pages from scatterlist Date: Mon, 6 Feb 2006 23:13:17 +0100 Message-ID: <200602062313.18041.ak@suse.de> References: <200602062211.29993.ak@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org To: Hugh Dickins Cc: Ryan Richter , Brian King , "David S. Miller" , James.Bottomley@steeleye.com, Andrew Morton , linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org List-Id: linux-scsi@vger.kernel.org On Monday 06 February 2006 23:11, Hugh Dickins wrote: > On Mon, 6 Feb 2006, Andi Kleen wrote: > > On Monday 06 February 2006 17:45, Hugh Dickins wrote: > > > > > > But all this presupposes that someone is suddenly going to change the > > > x86_64 gart_map_sg (and subfunctions), or else force its iommu=nomerge: > > > that won't be me. > > > > Ok i changed it to conform to the gospel. I gave it some basic pounding LTP/dd IO with > > and without IOMMU force, but it's not that well tested. More testing welcome. > > Great, thanks Andi. One small correction to the comment... > > > Don't touch the non DMA members in the sg list in dma_map_sg in the IOMMU > > > > Some drivers (in particular ipr) ran into problems because they > > No, the problem hasn't knowingly been sighted on ipr, Ok. I was wondering anyways why people should use ipr on x86-64. > it was the > st driver that Ryan's been seeing it with - ipr just came from > my looking around for like instances. I will fix the comment. Thanks. -Andi