On Mon, Mar 19, 2012 at 10:21:28AM -0700, Keith Packard wrote: > <#part sign=pgpmime> > On Mon, 19 Mar 2012 15:53:54 +0100, Stanislaw Gruszka <sgruszka@xxxxxxxxxx> wrote: > > > Keith, is there a chance that this bug can be fixed by i915 team? > > Yes, I'm working on figuring out how to actually reproduce this and then > work on a few work-arounds. This must be hardware dependent then, yesterday and today I tried to reproduce on Lenovo T60 with: 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) and there is no sign of corruption, I double checked if slab poisoning is enabled. > > If not, can we disable hibernate on i915 with modeset=1 and add > > module option, which enable it for those who want to risk? > > I'd love to know if disabling modeset on just the booting kernel helps; > leaving the resuming kernel with modeset=1. I haven't been able to > reproduce this locally yet to test this theory though. On Lenovo T500 with: 00:02.1 Display controller [0380]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a43] (rev 07) that is the case. Script attached on previous email trigger corruption with modeset=1 (on various older and newer kernels) in less then 20 iterations. There is no corruption after 100 iterations if i915.modeset=0 parameter is used. Some users on RH bugzilla confirmed that workaround as well. If you want list of more i915 adapters where the problem happens, I can check in our bugzilla and provide it. Thanks Stanislaw _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
