May 11 16:57:55 eipi-1-THINK kernel: [ 479.947254] INFO: task i915:306 blocked for more than 120 seconds.
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947260] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947265] i915 D 0000000000000000 0 306 2 0x00000000
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947274] ffff88012eeb9d40 0000000000000046 0000000000015bc0 0000000000015bc0
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947281] ffff88012f30c890 ffff88012eeb9fd8 0000000000015bc0 ffff88012f30c4d0
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947286] 0000000000015bc0 ffff88012eeb9fd8 0000000000015bc0 ffff88012f30c890
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947291] Call Trace:
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947304] [<ffffffff8153f897>] __mutex_lock_slowpath+0xe7/0x170
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947313] [<ffffffff81058620>] ? finish_task_switch+0x50/0xe0
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947317] [<ffffffff8153f78b>] mutex_lock+0x2b/0x50
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947349] [<ffffffffa00c337d>] i915_gem_retire_work_handler+0x3d/0xa0 [i915]
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947365] [<ffffffffa00c3340>] ? i915_gem_retire_work_handler+0x0/0xa0 [i915]
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947372] [<ffffffff81080777>] run_workqueue+0xc7/0x1a0
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947376] [<ffffffff810808f3>] worker_thread+0xa3/0x110
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947381] [<ffffffff81085320>] ? autoremove_wake_function+0x0/0x40
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947386] [<ffffffff81080850>] ? worker_thread+0x0/0x110
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947389] [<ffffffff81084fa6>] kthread+0x96/0xa0
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947394] [<ffffffff810141ea>] child_rip+0xa/0x20
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947398] [<ffffffff81084f10>] ? kthread+0x0/0xa0
May 11 16:57:55 eipi-1-THINK kernel: [ 479.947402] [<ffffffff810141e0>] ? child_rip+0x0/0x20