From mboxrd@z Thu Jan 1 00:00:00 1970 From: Samuel Thibault Subject: Re: pv-grub boot hangs when iommu=soft. Booting kernel directly with the flags works Date: Wed, 7 Apr 2010 18:57:39 +0200 Message-ID: <20100407165739.GD4920@const.bordeaux.inria.fr> References: <4BBA5E4B.5010307@triad.rr.com> <20100405221824.GA26620@phenom.dumpdata.com> <20100406002507.GP23034@const.famille.thibault.fr> <20100407162416.GE26620@phenom.dumpdata.com> <20100407163319.GZ4920@const.bordeaux.inria.fr> <4BBCB87F.4080502@triad.rr.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <4BBCB87F.4080502@triad.rr.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: listmail Cc: xen-devel@lists.xensource.com, Konrad Rzeszutek Wilk List-Id: xen-devel@lists.xenproject.org listmail, le Wed 07 Apr 2010 12:53:19 -0400, a =E9crit : > "If the 'iommu=3Dsoft swiotlb=3Dforce' is removed it boots" >=20 > but in actuality, "switotlb=3Dforce" can be left in and it boots ok as= well.=20 > From what I've see it is only when having "iommu=3Dsoft" added in that=20 > exposes the issue. Ok, so the problem really is the combination of pv-grub and iommu=3Dsoft. > I understand that you have communicated that you don't have time for > this in near future and I respect that, however, if there is something > specific to try that would shed more light on the issue then let me > know. I have no idea off-hand. In "I don't have time in the near future", I mean that other people could perhaps have a closer look at the issue... Samuel