Created attachment 131144 [details]
Stack trace

Hi,

First time reporting this kind of bug, please poke for more info if needed.

```
Linux Lifany 4.10.11-1-ARCH #1 SMP PREEMPT Tue Apr 18 08:39:42 CEST 2017 x86_64 GNU/Linux
```

This is a stack trace translated by hand, I also attached a picture.

```
CPU: 0 PID: 22609 Comm: Xorg Not tainted 4.10.11-1-ARCH #1
Hardware name: LENOVO 20CMS0HA00/20CMS0HA00, BIOS N10ET36W (1.15 ) 06/19/2015
task: ffff88020bb21c80 task.stack: ffffc900013b4000
RIP: 0010:gen8_ppgtt_alloc_page_directories.isra.14+0x11f/0x270 [i915]
RSP: 0018:ffffc900013b78a8 EFLAGS: 00010286
RAX: ffff8801fc476000 RBX: 0000000000420000 RCX: 0000000000000003
RDX: 0000000000000000 RSI: ffff88002aaff000 RDI: ffff880220728000
RBP: ffffc900013b7900 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: ffff880222418000
R13: ffff8801fcb4edf0 R14: 0000000000000003 R15: 00000000ffbde000
FS:  00007f2772752940(0000) GS: ffff88022dc00000(0000) knlGS: 0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000018 CR3: 0000000011e6a8000 CR4: 0000000000003406f0
Call Trace:
  gen8_alloc_va_range_3lvl+0xf7/0x9c0 [i915]
  gen8_alloc_va_range_+0x256/0x490 [i915]
  i915_vma_bind+0xab/0x1a0 [i915]
  __i915_vma_do_pin+0x2a5/0x450 [i915]
  i915_gem_execbuffer_reserve_vma.isra.8+0x144/0x1b0 [i915]
  i915_gem_execbuffer_reserve.isra.9+0x39e/0x3d0 [i915]
  i915_gem_do_execbuffer.isra.15+0x62e/0x1690 [i915]
  ? mem_cgroup_commit_charge+0x82/0x500
  ? shmem_add_to_page_cache+0xf9/0x1f0
  i915_gem_execbuffer2+0xc5/0x240 [i915]
  drm_ioctl+0x21b/0x4c0 [drm]
  ? file_update_time+0xc8/0x110
  ? i915_gem_execbuffer+0x310/0x310 [i915]
  do_vfs_ioctl+0xa3/0x5f0
  ? __fget+0x77/0xb0
  SyS_ioctl+0x79/0xb0
  entry_SYSCALL_64_fastpath+0x1a/0xa9
RIP: 0033:0x7f27705a30d7
RSP: 002b:00007ffd8fa055fa05598 EFLAGS: 00003246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f27705a30d7
RDX: 00007ffd8fa055d0 RSI: 0000000040406469 RDI: 000000000000000e
RBP: 00007ffd8fa055d0 R08: 0000000000000002 R09: 0000000000000001
R10: 00007f2772679020 R11: 0000000000003246 R12: 00007f2772679000
R13: 0000000000000030 R14: 00007ffd8fa055d0 R15: 0000000000bfd8d0
Code: 49 8b bc 24 d8 02 00 00 48 89 c6 48 89 45 c0 48 8b 52 08 48 83 ca 03 e8 50 e0 ff ff 48 8b 45 b0 48 8b 4d c8 48 8b 10 48 8b 45 d0 48 0f ab 08 0f 01 44 00 00 e9 4d ff ff
RIP: gen8_ppgtt_alloc_page_directories.isra.14+11f/0x270 [i915] RSP: ffffc900013b78a8
CR2: 0000000000000018
```

-- system architecture: ("uname -m")
x86_64
-- kernel version: ("uname -r").
4.10.11-1-ARCH
-- Linux distribution:
Archlinux 64, on testing
-- Machine or mother board model:
Lenovo x250
-- Display connector: (such as HDMI, DP, eDP, ...)
eDP1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 280mm x 160mm
DP1 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 600mm x 340mm