Just had it occur for the second time, two weeks after the first time. Unlike the first time, this time the mouse cursor did move (while everything else was frozen), but the system did not recover, and I had to ssh into the machine (which was possible, confirming that it's just the display that's broken) and reboot it. I'm also on Haswell, fwiw.
The stack trace is slightly different than before: Nov 13 20:15:59 pc kernel: [1630241.453354] CPU: 5 PID: 1806 Comm: Xorg Tainted: G W OE 3.16.0-23-generic #31-Ubuntu Nov 13 20:15:59 pc kernel: [1630241.453356] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z87 Extreme6, BIOS P2.40 07/08/2014 Nov 13 20:15:59 pc kernel: [1630241.453358] 0000000000000009 ffff8804082ffc18 ffffffff8177fcbc 0000000000000000 Nov 13 20:15:59 pc kernel: [1630241.453361] ffff8804082ffc50 ffffffff8106fd8d 0000000000000000 ffff880408fd6000 Nov 13 20:15:59 pc kernel: [1630241.453364] ffff880035938210 ffff880404b88800 ffff880404b88800 ffff8804082ffc60 Nov 13 20:15:59 pc kernel: [1630241.453367] Call Trace: Nov 13 20:15:59 pc kernel: [1630241.453375] [<ffffffff8177fcbc>] dump_stack+0x45/0x56 Nov 13 20:15:59 pc kernel: [1630241.453381] [<ffffffff8106fd8d>] warn_slowpath_common+0x7d/0xa0 Nov 13 20:15:59 pc kernel: [1630241.453384] [<ffffffff8106fe6a>] warn_slowpath_null+0x1a/0x20 Nov 13 20:15:59 pc kernel: [1630241.453406] [<ffffffffc0283ffc>] intel_crtc_wait_for_pending_flips+0x16c/0x180 [i915] Nov 13 20:15:59 pc kernel: [1630241.453411] [<ffffffff810b9590>] ? prepare_to_wait_event+0x100/0x100 Nov 13 20:15:59 pc kernel: [1630241.453432] [<ffffffffc0286ac3>] intel_crtc_disable_planes+0x33/0x1c0 [i915] Nov 13 20:15:59 pc kernel: [1630241.453436] [<ffffffff81784e5b>] ? __ww_mutex_lock+0x1b/0xb0 Nov 13 20:15:59 pc kernel: [1630241.453456] [<ffffffffc0287a17>] haswell_crtc_disable+0x57/0x2e0 [i915] Nov 13 20:15:59 pc kernel: [1630241.453459] [<ffffffff81785ab2>] ? mutex_lock+0x12/0x30 Nov 13 20:15:59 pc kernel: [1630241.453478] [<ffffffffc0288457>] intel_crtc_update_dpms+0x67/0xa0 [i915] Nov 13 20:15:59 pc kernel: [1630241.453497] [<ffffffffc028cac9>] intel_connector_dpms+0x59/0x70 [i915] Nov 13 20:15:59 pc kernel: [1630241.453516] [<ffffffffc00fbe19>] drm_mode_obj_set_property_ioctl+0x399/0x3a0 [drm] Nov 13 20:15:59 pc kernel: [1630241.453534] [<ffffffffc00fbe50>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm] Nov 13 20:15:59 pc kernel: [1630241.453546] [<ffffffffc00eaa4f>] drm_ioctl+0x1df/0x680 [drm] Nov 13 20:15:59 pc kernel: [1630241.453553] [<ffffffff8101c2f9>] ? read_tsc+0x9/0x20 Nov 13 20:15:59 pc kernel: [1630241.453557] [<ffffffff811f4bc8>] do_vfs_ioctl+0x2c8/0x4a0 Nov 13 20:15:59 pc kernel: [1630241.453561] [<ffffffff81080a52>] ? __set_task_blocked+0x32/0x80 Nov 13 20:15:59 pc kernel: [1630241.453564] [<ffffffff81083986>] ? __set_current_blocked+0x36/0xc0 Nov 13 20:15:59 pc kernel: [1630241.453567] [<ffffffff811f4e21>] SyS_ioctl+0x81/0xa0 Nov 13 20:15:59 pc kernel: [1630241.453571] [<ffffffff81787ced>] system_call_fastpath+0x1a/0x1f Nov 13 20:15:59 pc kernel: [1630241.453572] ---[ end trace 9b44a589aabc549d ]--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1384342 Title: kernel messages intel_crtc_wait_for_pending_flips correlate to compiz hang To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1384342/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
