From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: pvops: AHCI problems with SB600 Date: Wed, 23 Sep 2009 08:06:46 -0400 Message-ID: <20090923120646.GA3199@phenom.dumpdata.com> References: <4AB431AD.1030205@goop.org> <4AB4EEB8.7050107@web.de> <20090921150634.GD20933@phenom.dumpdata.com> <4AB89227.8050302@web.de> <20090922140825.GB21736@phenom.dumpdata.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20090922140825.GB21736@phenom.dumpdata.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: Patrick Scharrenberg Cc: Jeremy Fitzhardinge , Xen-devel List-Id: xen-devel@lists.xenproject.org On Tue, Sep 22, 2009 at 10:08:25AM -0400, Konrad Rzeszutek Wilk wrote: > On Tue, Sep 22, 2009 at 11:00:23AM +0200, Patrick Scharrenberg wrote: > > Konrad Rzeszutek Wilk wrote: > > > Ooooh. Can you give some more details on the hardware flavor? CPU? Memory? > > Its an AMD system on an ASUS M2A-VM mainboard with an Athlon 64 X2 CPU > > and 8GB of memory. > > > > > What happens if you use dom0_mem=max:512MB or pass in 'irqpoll' to the > > > Linux kernel? > > irqpoll does not change anything but the memory limit does the trick. > > The system then boots fine, I attached the dmesg log. > > Patrick, > > Lets try a couple of more options, if this isn't too much of a trouble? > Mainly change the dom0_mem=max:512MB to dom0_mem=max:4GB and then dom0_mem=max:6GB. > > You ought to have no trouble at 4GB. 6GB will fail if this is a DMA related > issue. Patrick, I've gotten my hands on machine with SB700 and it exhibits similar problems. The SB700 AHCI controller stops working if I have more than 4GB in the machine.