From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: Re: Out sw-iommu space problem Date: Mon, 24 Oct 2011 17:14:51 -0400 Message-ID: <20111024211451.GG2441@phenom.dumpdata.com> References: <1316011454156-4803078.post@n5.nabble.com> <20110914145403.GA17899@phenom.oracle.com> <1316097409687-4807062.post@n5.nabble.com> <20110915145840.GA20726@phenom.oracle.com> <1316105794010-4807540.post@n5.nabble.com> <1316210553.26990.24.camel@cthulhu.hellion.org.uk> <1319110129307-4921154.post@n5.nabble.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1319110129307-4921154.post@n5.nabble.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Fantu Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Thu, Oct 20, 2011 at 04:28:49AM -0700, Fantu wrote: > After setting swiotlb=65762 on vmlinuz (from 64 mb to 128 mb) problem solved. OK. I am not sure why your driver is using that much space, but that is the purpose of the argument. > Is swiotlb set on vmlinux bugged? At this time on 2.6.32 pv_ops, in order to > set size in MB requires this calculation: swiotlb=N where N/1024*2=MB That is correct. It is correct for any kernel since 2.6.18 I believe. Unless the swiotlb in the Xen old-style was doing something different. > > -- > View this message in context: http://xen.1045712.n5.nabble.com/Out-sw-iommu-space-problem-tp4803078p4921154.html > Sent from the Xen - Dev mailing list archive at Nabble.com. > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel