From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: PCI passthrough issue Date: Mon, 28 Feb 2011 10:01:41 -0500 Message-ID: <20110228150141.GD10846@dumpdata.com> References: <1296817460.13091.646.camel@zakaz.uk.xensource.com> <4D4BE212.1090400@jbfavre.org> <1296818935.13091.648.camel@zakaz.uk.xensource.com> <4D4BFBE4.6080809@jbfavre.org> <1296827449.13091.670.camel@zakaz.uk.xensource.com> <4D4C06BB.8010907@jbfavre.org> <4D52658E.9060907@jbfavre.org> <4D5EE125.6040208@jbfavre.org> <20110225144035.GA7228@dumpdata.com> <4D6B9285.9090903@jbfavre.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <4D6B9285.9090903@jbfavre.org> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com, Jean Baptiste Favre List-Id: xen-devel@lists.xenproject.org > >> extra = "root=/dev/mapper/xps--106-root ro iommu=soft swiotlb=force > >> console=hvc0 xencons=tty" > > > > Try without 'swiotlb=force' on any kernel that is PVOPS. Only the older > > ones (lenny) required that. And you don't need 'xencons=tty' either with > > PVOPS kernels. > Thought I already tried without 'swiotlb=force', but seems not... > > Just tried it on my Debian domU, and everything works now, whatever > copybreak value can be. > > But trying the same with OpenWRT gives following results: > - With 'swiotlb=force': fails for size equal or greater than 128 bytes > (or ping -s86) > - Without 'swiotlb=force': always fails > > I can provide OpenWRT disk img and kernel. For Debian domU, I can > provide a dd from LVM and kernel. Let me know which ones you want. Lets do both. Do you know where the sources for OpenWRT are located?