Someone

Kernel Loop:

kernel: INFO: task i915/1:147 blocked for more than 120 seconds.
kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
kernel: i915/1        D ffff880077306828     0   147      2 0x00000000
kernel: ffff880076e27d60 0000000000000046 ffff8800772fc6b8 ffff8800019f1670
kernel: ffff880076e27ce0 ffffffff81040488 ffff8800772fc6b8 ffff8800019f1670
kernel: ffff8800772fca48 000000000000f8f0 ffff8800772fca48 0000000000015600
kernel: Call Trace:
kernel: [<ffffffff81040488>] ? update_curr+0xf7/0x100
kernel: [<ffffffff810106c5>] ? __switch_to+0x18b/0x217
kernel: [<ffffffff81419c0b>] __mutex_lock_common+0x11e/0x186
kernel: [<ffffffff81419c8c>] __mutex_lock_slowpath+0x19/0x1b
kernel: [<ffffffff81419da6>] mutex_lock+0x34/0x4e
kernel: [<ffffffffa0061cec>] i915_gem_retire_work_handler+0x2d/0x73 [i915]
kernel: [<ffffffffa0061cbf>] ? i915_gem_retire_work_handler+0x0/0x73 [i915]
kernel: [<ffffffff8106356c>] worker_thread+0x18a/0x224
kernel: [<ffffffff81067b03>] ? autoremove_wake_function+0x0/0x39
kernel: [<ffffffff810633e2>] ? worker_thread+0x0/0x224
kernel: [<ffffffff81067781>] kthread+0x91/0x99
kernel: [<ffffffff81012daa>] child_rip+0xa/0x20
kernel: [<ffffffff810676f0>] ? kthread+0x0/0x99
kernel: [<ffffffff81012da0>] ? child_rip+0x0/0x20