May 11 22:42:14 mainland kernel: ------------[ cut here ]------------
May 11 22:42:14 mainland kernel: WARNING: CPU: 1 PID: 413 at include/linux/kref.h:47 drm_gem_object_lookup+0xa2/0xc0 [drm]()
May 11 22:42:14 mainland kernel: Modules linked in: mousedev hid_logitech_hidpp w83627ehf hwmon_vid hid_logitech_dj hid_generic nls_iso8859_1 nls_cp437 usbhid vfat hid fat coretemp intel_rapl iosf_mbi x86_pkg_temp_thermal intel_power
May 11 22:42:14 mainland kernel:  xhci_pci i8042 serio ext4 crc16 mbcache jbd2 ehci_hcd xhci_hcd usbcore sr_mod cdrom usb_common sd_mod ahci libahci libata scsi_mod radeon hwmon i2c_algo_bit drm_kms_helper ttm drm i2c_core
May 11 22:42:14 mainland kernel: CPU: 1 PID: 413 Comm: Xorg Not tainted 4.0.1-1-ARCH #1
May 11 22:42:14 mainland kernel: Hardware name:                  /DZ77BH-55K, BIOS BHZ7710H.86A.0094.2012.1101.1115 11/01/2012
May 11 22:42:14 mainland kernel:  0000000000000000 000000005e6ff2ac ffff88030e583cb8 ffffffff8156de97
May 11 22:42:14 mainland kernel:  0000000000000000 0000000000000000 ffff88030e583cf8 ffffffff81074d7a
May 11 22:42:14 mainland kernel:  ffff8803018efdf0 ffff8800d90ed2c0 ffff88030ec0ec60 000000000000009d
May 11 22:42:14 mainland kernel: Call Trace:
May 11 22:42:14 mainland kernel:  [<ffffffff8156de97>] dump_stack+0x4c/0x6e
May 11 22:42:14 mainland kernel:  [<ffffffff81074d7a>] warn_slowpath_common+0x8a/0xc0
May 11 22:42:14 mainland kernel:  [<ffffffff81074eaa>] warn_slowpath_null+0x1a/0x20
May 11 22:42:14 mainland kernel:  [<ffffffffa001a4f2>] drm_gem_object_lookup+0xa2/0xc0 [drm]
May 11 22:42:14 mainland kernel:  [<ffffffffa010b3fd>] radeon_gem_busy_ioctl+0x3d/0x130 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffffa001bcab>] drm_ioctl+0x1db/0x640 [drm]
May 11 22:42:14 mainland kernel:  [<ffffffffa010b3c0>] ? radeon_gem_mmap_ioctl+0x20/0x20 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffff81191cc2>] ? unmap_region+0xe2/0x130
May 11 22:42:14 mainland kernel:  [<ffffffffa00d404c>] radeon_drm_ioctl+0x4c/0x80 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffff811e8f26>] do_vfs_ioctl+0x2c6/0x4d0
May 11 22:42:14 mainland kernel:  [<ffffffff811f3762>] ? __fget+0x72/0xb0
May 11 22:42:14 mainland kernel:  [<ffffffff811e91b1>] SyS_ioctl+0x81/0xa0
May 11 22:42:14 mainland kernel:  [<ffffffff815737c9>] system_call_fastpath+0x12/0x17
May 11 22:42:14 mainland kernel: ---[ end trace ff4430287afe68e0 ]---
May 11 22:42:14 mainland kernel: ------------[ cut here ]------------
May 11 22:42:14 mainland kernel: WARNING: CPU: 1 PID: 413 at include/drm/ttm/ttm_bo_driver.h:855 radeon_bo_wait+0x101/0x110 [radeon]()
May 11 22:42:14 mainland kernel: Modules linked in: mousedev hid_logitech_hidpp w83627ehf hwmon_vid hid_logitech_dj hid_generic nls_iso8859_1 nls_cp437 usbhid vfat hid fat coretemp intel_rapl iosf_mbi x86_pkg_temp_thermal intel_power
May 11 22:42:14 mainland kernel:  xhci_pci i8042 serio ext4 crc16 mbcache jbd2 ehci_hcd xhci_hcd usbcore sr_mod cdrom usb_common sd_mod ahci libahci libata scsi_mod radeon hwmon i2c_algo_bit drm_kms_helper ttm drm i2c_core
May 11 22:42:14 mainland kernel: CPU: 1 PID: 413 Comm: Xorg Tainted: G        W       4.0.1-1-ARCH #1
May 11 22:42:14 mainland kernel: Hardware name:                  /DZ77BH-55K, BIOS BHZ7710H.86A.0094.2012.1101.1115 11/01/2012
May 11 22:42:14 mainland kernel:  0000000000000000 000000005e6ff2ac ffff88030e583cb8 ffffffff8156de97
May 11 22:42:14 mainland kernel:  0000000000000000 0000000000000000 ffff88030e583cf8 ffffffff81074d7a
May 11 22:42:14 mainland kernel:  ffff8803018efdf0 ffff8800d90ed000 0000000000000001 ffff8800d90ed068
May 11 22:42:14 mainland kernel: Call Trace:
May 11 22:42:14 mainland kernel:  [<ffffffff8156de97>] dump_stack+0x4c/0x6e
May 11 22:42:14 mainland kernel:  [<ffffffff81074d7a>] warn_slowpath_common+0x8a/0xc0
May 11 22:42:14 mainland kernel:  [<ffffffff81074eaa>] warn_slowpath_null+0x1a/0x20
May 11 22:42:14 mainland kernel:  [<ffffffffa00f6241>] radeon_bo_wait+0x101/0x110 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffffa010b41e>] radeon_gem_busy_ioctl+0x5e/0x130 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffffa001bcab>] drm_ioctl+0x1db/0x640 [drm]
May 11 22:42:14 mainland kernel:  [<ffffffffa010b3c0>] ? radeon_gem_mmap_ioctl+0x20/0x20 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffff81191cc2>] ? unmap_region+0xe2/0x130
May 11 22:42:14 mainland kernel:  [<ffffffffa00d404c>] radeon_drm_ioctl+0x4c/0x80 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffff811e8f26>] do_vfs_ioctl+0x2c6/0x4d0
May 11 22:42:14 mainland kernel:  [<ffffffff811f3762>] ? __fget+0x72/0xb0
May 11 22:42:14 mainland kernel:  [<ffffffff811e91b1>] SyS_ioctl+0x81/0xa0
May 11 22:42:14 mainland kernel:  [<ffffffff815737c9>] system_call_fastpath+0x12/0x17
May 11 22:42:14 mainland kernel: ---[ end trace ff4430287afe68e1 ]---
May 11 22:42:14 mainland kernel: ------------[ cut here ]------------
May 11 22:42:14 mainland kernel: WARNING: CPU: 1 PID: 413 at include/drm/ttm/ttm_bo_driver.h:855 radeon_bo_wait+0x101/0x110 [radeon]()
May 11 22:42:14 mainland kernel: Modules linked in: mousedev hid_logitech_hidpp w83627ehf hwmon_vid hid_logitech_dj hid_generic nls_iso8859_1 nls_cp437 usbhid vfat hid fat coretemp intel_rapl iosf_mbi x86_pkg_temp_thermal intel_power
May 11 22:42:14 mainland kernel:  xhci_pci i8042 serio ext4 crc16 mbcache jbd2 ehci_hcd xhci_hcd usbcore sr_mod cdrom usb_common sd_mod ahci libahci libata scsi_mod radeon hwmon i2c_algo_bit drm_kms_helper ttm drm i2c_core
May 11 22:42:14 mainland kernel: CPU: 1 PID: 413 Comm: Xorg Tainted: G        W       4.0.1-1-ARCH #1
May 11 22:42:14 mainland kernel: Hardware name:                  /DZ77BH-55K, BIOS BHZ7710H.86A.0094.2012.1101.1115 11/01/2012
May 11 22:42:14 mainland kernel:  0000000000000000 000000005e6ff2ac ffff88030e583cb8 ffffffff8156de97
May 11 22:42:14 mainland kernel:  0000000000000000 0000000000000000 ffff88030e583cf8 ffffffff81074d7a
May 11 22:42:14 mainland kernel:  00000000fffffff0 ffff88030183e000 0000000000000001 ffff88030183e068
May 11 22:42:14 mainland kernel: Call Trace:
May 11 22:42:14 mainland kernel:  [<ffffffff8156de97>] dump_stack+0x4c/0x6e
May 11 22:42:14 mainland kernel:  [<ffffffff81074d7a>] warn_slowpath_common+0x8a/0xc0
May 11 22:42:14 mainland kernel:  [<ffffffff81074eaa>] warn_slowpath_null+0x1a/0x20
May 11 22:42:14 mainland kernel:  [<ffffffffa00f6241>] radeon_bo_wait+0x101/0x110 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffffa010b41e>] radeon_gem_busy_ioctl+0x5e/0x130 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffffa001bcab>] drm_ioctl+0x1db/0x640 [drm]
May 11 22:42:14 mainland kernel:  [<ffffffffa010b3c0>] ? radeon_gem_mmap_ioctl+0x20/0x20 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffff81191cc2>] ? unmap_region+0xe2/0x130
May 11 22:42:14 mainland kernel:  [<ffffffffa00d404c>] radeon_drm_ioctl+0x4c/0x80 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffff811e8f26>] do_vfs_ioctl+0x2c6/0x4d0
May 11 22:42:14 mainland kernel:  [<ffffffff811f3762>] ? __fget+0x72/0xb0
May 11 22:42:14 mainland kernel:  [<ffffffff811e91b1>] SyS_ioctl+0x81/0xa0
May 11 22:42:14 mainland kernel:  [<ffffffff815737c9>] system_call_fastpath+0x12/0x17
May 11 22:42:14 mainland kernel: ---[ end trace ff4430287afe68e2 ]---
May 11 22:42:14 mainland kernel: ------------[ cut here ]------------
May 11 22:42:14 mainland kernel: WARNING: CPU: 1 PID: 413 at include/drm/ttm/ttm_bo_driver.h:855 radeon_bo_wait+0x101/0x110 [radeon]()
May 11 22:42:14 mainland kernel: Modules linked in: mousedev hid_logitech_hidpp w83627ehf hwmon_vid hid_logitech_dj hid_generic nls_iso8859_1 nls_cp437 usbhid vfat hid fat coretemp intel_rapl iosf_mbi x86_pkg_temp_thermal intel_power
May 11 22:42:14 mainland kernel:  xhci_pci i8042 serio ext4 crc16 mbcache jbd2 ehci_hcd xhci_hcd usbcore sr_mod cdrom usb_common sd_mod ahci libahci libata scsi_mod radeon hwmon i2c_algo_bit drm_kms_helper ttm drm i2c_core
May 11 22:42:14 mainland kernel: CPU: 1 PID: 413 Comm: Xorg Tainted: G        W       4.0.1-1-ARCH #1
May 11 22:42:14 mainland kernel: Hardware name:                  /DZ77BH-55K, BIOS BHZ7710H.86A.0094.2012.1101.1115 11/01/2012
May 11 22:42:14 mainland kernel:  0000000000000000 000000005e6ff2ac ffff88030e583cb8 ffffffff8156de97
May 11 22:42:14 mainland kernel:  0000000000000000 0000000000000000 ffff88030e583cf8 ffffffff81074d7a
May 11 22:42:14 mainland kernel:  00000000fffffff0 ffff8802b8670400 0000000000000001 ffff8802b8670468
May 11 22:42:14 mainland kernel: Call Trace:
May 11 22:42:14 mainland kernel:  [<ffffffff8156de97>] dump_stack+0x4c/0x6e
May 11 22:42:14 mainland kernel:  [<ffffffff81074d7a>] warn_slowpath_common+0x8a/0xc0
May 11 22:42:14 mainland kernel:  [<ffffffff81074eaa>] warn_slowpath_null+0x1a/0x20
May 11 22:42:14 mainland kernel:  [<ffffffffa00f6241>] radeon_bo_wait+0x101/0x110 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffffa010b41e>] radeon_gem_busy_ioctl+0x5e/0x130 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffffa001bcab>] drm_ioctl+0x1db/0x640 [drm]
May 11 22:42:14 mainland kernel:  [<ffffffffa010b3c0>] ? radeon_gem_mmap_ioctl+0x20/0x20 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffff81191cc2>] ? unmap_region+0xe2/0x130
May 11 22:42:14 mainland kernel:  [<ffffffffa00d404c>] radeon_drm_ioctl+0x4c/0x80 [radeon]
May 11 22:42:14 mainland kernel:  [<ffffffff811e8f26>] do_vfs_ioctl+0x2c6/0x4d0
May 11 22:42:14 mainland kernel:  [<ffffffff811f3762>] ? __fget+0x72/0xb0
May 11 22:42:14 mainland kernel:  [<ffffffff811e91b1>] SyS_ioctl+0x81/0xa0
May 11 22:42:14 mainland kernel:  [<ffffffff815737c9>] system_call_fastpath+0x12/0x17
May 11 22:42:14 mainland kernel: ---[ end trace ff4430287afe68e3 ]---
May 11 22:42:14 mainland kernel: ------------[ cut here ]------------
May 11 22:42:14 mainland kernel: kernel BUG at drivers/gpu/drm/drm_vma_manager.c:209!


 glxinfo | grep -i opengl
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD BARTS
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.5.4
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 10.5.4
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 10.5.4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:


Freezes the system and requires hard reset.