From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: Resume not working on 2nd gen Core i5 Date: Thu, 23 Feb 2012 13:03:13 -0500 Message-ID: <20120223180313.GC22574@phenom.dumpdata.com> References: <4F460354.7080907@invisiblethingslab.com> <20120223141827.GC23963@phenom.dumpdata.com> <20120223173146.GA22922@phenom.dumpdata.com> <4F4679D1.3000806@invisiblethingslab.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <4F4679D1.3000806@invisiblethingslab.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Joanna Rutkowska Cc: "xen-devel@lists.xensource.com" , Marek Marczykowski List-Id: xen-devel@lists.xenproject.org On Thu, Feb 23, 2012 at 06:39:29PM +0100, Joanna Rutkowska wrote: > On 02/23/12 18:31, Konrad Rzeszutek Wilk wrote: > > On Thu, Feb 23, 2012 at 09:18:27AM -0500, Konrad Rzeszutek Wilk wrote: > >> On Thu, Feb 23, 2012 at 10:13:56AM +0100, Joanna Rutkowska wrote: > >>> Hello, > >>> > >>> I've been trying to resolve the issue of my T420s (Core i5 2540M, Intel > >>> integrated GPU) freezing at resume from S3 sleep... It seems like a > >>> Xen-related problems, as a similar kernel to what we use in Dom0 > >>> (2.6.38+xenlinux), when run on baremetal shows no signs of problems at > >>> suspend/resume. Also I cannot find any problems reported on the internet > >>> with people having problems here. > >>> > >>> Unfortunately the only COM port on ExpressCard I have, presents itself > >>> as a USB device, and so I cannot really debug this issue via console. > >>> The /var/log/pm-suspend also doesn't reveal anything useful (after I > >>> reboot, that is). > >>> > >>> Does anybody have a similar problem on 2nd Gen Core i5? Any advises how > >>> to approach debugging it? > >>> > >>> I'm running Xen 4.1.1 with some minor patches, and 2.6.38 with xenlinux > >>> patches, and the i915 for the graphics. (Unfortunately I cannot just > >>> boot the same Dom0 kernel without Xen, as the GRUB complains about > >>> executable being unrecognized -- probably some problem with wrong > >>> compression algo). > >>> > >>> I also tried 3.2.5 pvops kernel for Dom0 (essentially a vanilla kernel) > >>> -- in this case it's even worse, as the system hangs at suspend and > >>> never enters S3 :/ > >> > >> Right. You need some patches for that in git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git devel/acpi-s3.v7 > >> to make that work. > > > > What I meant to say - please try it out with those patches. It might that you > > are hitting on one of the Intel bugs of the video adapter that I think > > are mostly fixed in the upstream kernel. > > So, you're saying those (presumed) bugs a fixed only in the pvops, and > not in xenlinux? I am saying that they are fixed in 3.x kernels.