Just for reference, the crasher can be reproduced most easily by playing a HD video with vlc. Resume from suspend will also trigger it eventually, but it needs to happen by using the lid, not scripting with fwts or such.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1319656 Title: [i915_bdw] Add a patch to fix crashes Status in “linux” package in Ubuntu: Fix Released Status in “linux” source package in Trusty: In Progress Bug description: We need a new patch from bdw-backports branch to fix a number of crashers in the i915_bdw driver: commit 17ef4e5850c6fc48a3af2ca89aea19fec7298ace Author: Ben Widawsky <benjamin.widaw...@intel.com> Date: Fri May 9 15:09:26 2014 -0700 drm/i915/bdw: Use MMIO for loading PDPs This is a partial-functional backport of: commit eeb9488e751a0a6401e7516a893efaf9d1f77fb5 Author: Ben Widawsky <b...@bwidawsk.net> Date: Fri Dec 6 14:11:10 2013 -0800 drm/i915: Extract mm switching to function In that commit, the new mm switching function introduced the ability to either load the page tables via the ring, or via MMIO. The issue we have is during reset, we do not have the ability to use the rings. Trying to do so will fail, and prevent our Aliasing PPGTT from coming back. In current upstream, we use the MMIO on reset, and LRI for everything else. Here however, we always use the MMIO (in spite of what docs say, I've used this for a long time, and it's never *not* worked.). During development, we were using MMIO, and it was changed toward the end on code review. We do not have enough of the other code in place to be as smart as we are for current upstream. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77587 Signed-off-by: Ben Widawsky <b...@bwidawsk.net> To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319656/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
