KDE4-32bit

 kernel: INFO: task X:894 blocked for more than 120 seconds.
 kernel:       Tainted: P           O 3.14.51-std-def-alt1 #1
 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
 kernel: X               D c104994c     0   894    864 0x00000004
 kernel:  d8b3bcc4 00000086 d8b3bc50 c104994c d8b3bc5c c102d885 00000000 c176c580
 kernel:  c176c580 00000000 00000011 cf642390 cd038210 c15f2bf0 00000000 00000001
 kernel:  c15f2bf0 d8b3bc98 c103fa8f 00000000 00000001 c15f2bf0 00000096 c2389000
 kernel: Call Trace:
 kernel:  [<c104994c>] ? irq_exit+0x5c/0x90
 kernel:  [<c102d885>] ? smp_apic_timer_interrupt+0x35/0x50
 kernel:  [<c103fa8f>] ? kmap_atomic_prot+0x3f/0xf0
 kernel:  [<c1082087>] ? prepare_to_wait+0x47/0x70
 kernel:  [<c146bebe>] schedule+0x1e/0x60
 kernel:  [<c1331065>] rpm_resume+0x115/0x5a0
 kernel:  [<c1081e50>] ? finish_wait+0x60/0x60
 kernel:  [<c1332626>] __pm_runtime_resume+0x36/0x50
 kernel:  [<f8402180>] radeon_driver_open_kms+0x30/0x1f0 [radeon]
 kernel:  [<c11e86b7>] ? security_capable+0x17/0x20
 kernel:  [<c104c792>] ? ns_capable+0x22/0x50
 kernel:  [<f7f39b17>] drm_open+0x247/0x5a0 [drm]
 kernel:  [<f7f39f41>] drm_stub_open+0xd1/0x110 [drm]
 kernel:  [<c1151ed8>] chrdev_open+0x88/0x1b0
 kernel:  [<c114c1e0>] do_dentry_open+0x200/0x270
 kernel:  [<c1157e88>] ? __inode_permission+0x48/0xb0
 kernel:  [<c1151e50>] ? cdev_put+0x20/0x20
 kernel:  [<c114c27d>] finish_open+0x2d/0x40
 kernel:  [<c115b33c>] do_last+0x7ac/0xc90
 kernel:  [<c11584ad>] ? link_path_walk+0x1dd/0x6e0
 kernel:  [<c1103016>] ? generic_file_aio_write+0x56/0xe0
 kernel:  [<c115b8cb>] path_openat+0xab/0x550
 kernel:  [<c1178466>] ? fsstack_copy_inode_size+0x96/0xb0
 kernel:  [<c115c520>] do_filp_open+0x30/0x80
 kernel:  [<c114d8b8>] do_sys_open+0x108/0x1f0
 kernel:  [<c114d9bd>] SyS_open+0x1d/0x20
 kernel:  [<c146f217>] syscall_call+0x7/0x7

----------------------------------------------------------------------------

XFCE-32bit

 kernel: INFO: task X:887 blocked for more than 120 seconds.
 kernel:       Tainted: P           O 3.14.51-std-def-alt1 #1
 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
 kernel: X               D 00000002     0   887    850 0x00000000
 kernel:  d1aa9cc4 00000086 00000002 00000002 d1aa9c6c c110640f 00000002 c176c580
 kernel:  c176c580 381bbac5 00000010 c0055170 c1679a40 f583fac0 00000000 00000001
 kernel:  c15f2bf0 d1aa9c98 c103fa8f 00000000 00000001 c15f2bf0 00000096 c4327000
 kernel: Call Trace:
 kernel:  [<c110640f>] ? zone_watermark_ok+0x2f/0x40
 kernel:  [<c103fa8f>] ? kmap_atomic_prot+0x3f/0xf0
 kernel:  [<c1082087>] ? prepare_to_wait+0x47/0x70
 kernel:  [<c146bebe>] schedule+0x1e/0x60
 kernel:  [<c1331065>] rpm_resume+0x115/0x5a0
 kernel:  [<c1081e50>] ? finish_wait+0x60/0x60
 kernel:  [<c1332626>] __pm_runtime_resume+0x36/0x50
 kernel:  [<f7fe6180>] radeon_driver_open_kms+0x30/0x1f0 [radeon]
 kernel:  [<c11e86b7>] ? security_capable+0x17/0x20
 kernel:  [<c104c792>] ? ns_capable+0x22/0x50
 kernel:  [<f7dbcb17>] drm_open+0x247/0x5a0 [drm]
 kernel:  [<f7dbcf41>] drm_stub_open+0xd1/0x110 [drm]
 kernel:  [<c1151ed8>] chrdev_open+0x88/0x1b0
 kernel:  [<c114c1e0>] do_dentry_open+0x200/0x270
 kernel:  [<c1157e88>] ? __inode_permission+0x48/0xb0
 kernel:  [<c1151e50>] ? cdev_put+0x20/0x20
 kernel:  [<c114c27d>] finish_open+0x2d/0x40
 kernel:  [<c115b33c>] do_last+0x7ac/0xc90
 kernel:  [<c11584ad>] ? link_path_walk+0x1dd/0x6e0
 kernel:  [<c1103016>] ? generic_file_aio_write+0x56/0xe0
 kernel:  [<c115b8cb>] path_openat+0xab/0x550
 kernel:  [<c1178466>] ? fsstack_copy_inode_size+0x96/0xb0
 kernel:  [<c115c520>] do_filp_open+0x30/0x80
 kernel:  [<c114d8b8>] do_sys_open+0x108/0x1f0
 kernel:  [<c114d9bd>] SyS_open+0x1d/0x20
 kernel:  [<c146f217>] syscall_call+0x7/0x7

-----------------------------------------------------------------

XFCE-64bit

 kernel: INFO: task X:900 blocked for more than 120 seconds.
 kernel:       Tainted: P           O 3.14.51-std-def-alt1 #1
 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
 kernel: X               D ffff88014fc12d00     0   900    861 0x00000000
 kernel:  ffff880126a17a28 0000000000000002 ffff8800684fe4d0 0000000000012d00
 kernel:  ffff880126a17fd8 0000000000012d00 ffffffff817ed4a0 ffff8800684fe4d0
 kernel:  ffff880126a17a38 ffff88014a000098 ffff88014a00013e ffff88014a0001f8
 kernel: Call Trace:
 kernel:  [<ffffffff815519b4>] schedule+0x24/0x70
 kernel:  [<ffffffff813ed0d4>] rpm_resume+0x164/0x6a0
 kernel:  [<ffffffff810acc70>] ? finish_wait+0x80/0x80
 kernel:  [<ffffffff813eea88>] __pm_runtime_resume+0x48/0x70
 kernel:  [<ffffffffa0237402>] radeon_driver_open_kms+0x42/0x200 [radeon]
 kernel:  [<ffffffff8126fdc3>] ? security_capable+0x13/0x20
 kernel:  [<ffffffffa001f3b3>] drm_open+0x2a3/0x6b0 [drm]
 kernel:  [<ffffffffa001f8b5>] drm_stub_open+0xf5/0x150 [drm]
 kernel:  [<ffffffff811ba393>] chrdev_open+0xa3/0x1d0
 kernel:  [<ffffffff811b3583>] do_dentry_open+0x243/0x2d0
 kernel:  [<ffffffff811ba2f0>] ? cdev_put+0x30/0x30
 kernel:  [<ffffffff811b3640>] finish_open+0x30/0x40
 kernel:  [<ffffffff811c48cc>] do_last+0x20c/0xef0
 kernel:  [<ffffffff811c183e>] ? link_path_walk+0x28e/0x840
 kernel:  [<ffffffff811c566d>] path_openat+0xbd/0x670
 kernel:  [<ffffffff811b612e>] ? vfs_write+0x17e/0x1d0
 kernel:  [<ffffffff811c632e>] do_filp_open+0x3e/0xa0
 kernel:  [<ffffffff811d2d51>] ? __alloc_fd+0xd1/0x120
 kernel:  [<ffffffff811b4e77>] do_sys_open+0x137/0x220
 kernel:  [<ffffffff811b4f7d>] SyS_open+0x1d/0x20
 kernel:  [<ffffffff8155e5a7>] tracesys+0xdd/0xe2