From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: pci-passthrough not working on 4.0.1-rc1-pre: mm.c:3847:d10 Bad page 00000000001beab4: ed=ffff830151210000(10), sd=ffff830151210000, caf=8000000000000002, taf=7400000000000001 Date: Thu, 22 Apr 2010 14:57:47 -0400 Message-ID: <20100422185747.GF31220@phenom.dumpdata.com> References: <1497488369.20100419164714@eikelenboom.it> <20100419155936.GA11619@phenom.dumpdata.com> <103758397.20100419181342@eikelenboom.it> <20100419162736.GA9988@phenom.dumpdata.com> <1144401458.20100419190923@eikelenboom.it> <1934472801.20100419192319@eikelenboom.it> <20100419182839.GA8349@phenom.dumpdata.com> <1538293002.20100421155829@eikelenboom.it> <20100421150202.GA6906@phenom.dumpdata.com> <1365246793.20100421234440@eikelenboom.it> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1365246793.20100421234440@eikelenboom.it> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Sander Eikelenboom Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Wed, Apr 21, 2010 at 11:44:40PM +0200, Sander Eikelenboom wrote: > For the fun of it, with the 2.6.33 and pvgrub > with kernel line iommu=soft of iommu=1 it fails to boot (no output from a kernel booting) > with kernel line iommu=off .. it boots fine. > > Does something in the regular kernel around the iommu stuff get run that early in the boot that if it fails it doesn't give output, and could that be triggered by the handing over from mini-os to the actual kernel ? Not around the code that handles the 'iommu=' stuff. It just sets a variable (swiotlb in this case) to 1 if 'soft' is specified.