[ 357.302662] BUG: unable to handle kernel paging request at 0000000080000088 [ 357.386467] IP: [] capture_bo+0x4/0x148 [i915] [ 357.458714] PGD 0 [ 357.482931] Oops: 0000 [#1] SMP [ 357.521860] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_realte k snd_hda_codec_generic iTCO_wdt iTCO_vendor_support snd_hda_intel snd_hda_contr oller snd_hda_codec serio_raw pcspkr snd_hwdep snd_pcm snd_timer i2c_i801 lpc_ic h snd mfd_core soundcore battery ac acpi_cpufreq i915 button video drm_kms_helpe r drm [ 357.866181] CPU: 1 PID: 1027 Comm: kworker/u8:2 Not tainted 4.0.0-rc1_drm-int el-nightly_0b2a10_20150225+ #3 [ 357.983178] Workqueue: i915-hangcheck i915_hangcheck_elapsed [i915] [ 358.058520] task: ffff88017a509890 ti: ffff88017599c000 task.ti: ffff88017599 c000 [ 358.148345] RIP: 0010:[] [] capture_bo+0 x4/0x148 [i915] [ 358.249804] RSP: 0018:ffff88017599fc70 EFLAGS: 00010287 [ 358.313552] RAX: 0000000080000000 RBX: ffff880175267800 RCX: 0000000000004000 [ 358.399204] RDX: 0000000000000000 RSI: ffff8801767e7e80 RDI: ffff880178734680 [ 358.484855] RBP: ffff8801767e7e00 R08: 0000000000000234 R09: ffff8801767e7e80 [ 358.570507] R10: ffff880178592688 R11: 0000000000000601 R12: ffff8801754d0000 [ 358.656159] R13: 0000000000000002 R14: 0000000000000008 R15: ffff88017873c020 [ 358.741810] FS: 0000000000000000(0000) GS:ffff88017fc80000(0000) knlGS:00000 00000000000 [ 358.838936] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 358.907899] CR2: 0000000080000088 CR3: 0000000001b97000 CR4: 00000000001006e0 [ 358.993451] Stack: [ 359.017554] ffffffffa00a2cc2 0000000000000972 ffff88017a77f800 0000000000000 005 [ 359.106780] ffff8801767e7ee0 ffff8801754d7ed0 ffff8801754d7cc0 0000000000000 003 [ 359.196005] ffff8801787346a0 ffff8801767e7e80 ffff88017599fd68 ffff880178730 000 [ 359.285231] Call Trace: [ 359.314596] [] ? i915_capture_error_state+0x68c/0x141a [i9 15] [ 359.403432] [] ? i915_handle_error+0x7a/0x587 [i915] [ 359.482878] [] ? i915_hangcheck_elapsed+0x325/0x3bf [i915] [ 359.568545] [] ? process_one_work+0x1b2/0x31d [ 359.640644] [] ? worker_thread+0x24d/0x339 [ 359.709608] [] ? cancel_delayed_work_sync+0xa/0xa [ 359.785874] [] ? kthread+0xce/0xd6 [ 359.846495] [] ? kthread_create_on_node+0x162/0x162 [ 359.924852] [] ? ret_from_fork+0x7c/0xb0 [ 359.991731] [] ? kthread_create_on_node+0x162/0x162 [ 360.070080] Code: 3a b2 11 a0 e8 34 67 f0 ff b8 fb ff ff ff eb 0c bd 10 27 00 00 31 c0 85 ed 0f 4e c5 48 83 c4 38 5b 5d 41 5c 41 5d c3 48 8b 46 48 <48> 8b 90 88 00 00 00 89 17 8b 90 90 00 00 00 89 57 04 48 8b 90 [ 360.303754] RIP [] capture_bo+0x4/0x148 [i915] [ 360.377040] RSP [ 360.418878] CR2: 0000000080000088 [ 360.458635] ---[ end trace 5cf43c740c918516 ]--- [ 360.514319] BUG: unable to handle kernel paging request at ffffffffffffffd8 [ 360.598120] IP: [] kthread_data+0x7/0xc [ 360.663027] PGD 1b98067 PUD 1b9a067 PMD 0 [ 360.712500] Oops: 0000 [#2] SMP [ 360.751429] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_realte k snd_hda_codec_generic iTCO_wdt iTCO_vendor_support snd_hda_intel snd_hda_contr oller snd_hda_codec serio_raw pcspkr snd_hwdep snd_pcm snd_timer i2c_i801 lpc_ic h snd mfd_core soundcore battery ac acpi_cpufreq i915 button video drm_kms_helpe r drm [ 361.095743] CPU: 1 PID: 1027 Comm: kworker/u8:2 Tainted: G D 4.0 .0-rc1_drm-intel-nightly_0b2a10_20150225+ #3 [ 361.227315] task: ffff88017a509890 ti: ffff88017599c000 task.ti: ffff88017599 c000 [ 361.317143] RIP: 0010:[] [] kthread_data +0x7/0xc [ 361.411255] RSP: 0018:ffff88017599fa40 EFLAGS: 00010002 [ 361.475001] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff833675c0 [ 361.560656] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88017a509890 [ 361.646307] RBP: ffff88017a509890 R08: 0000000000053f05 R09: 00000000000003ff [ 361.731957] R10: 000000000000bc00 R11: 000000000000bbef R12: 0000000000000001 [ 361.817609] R13: ffff88017a509cd8 R14: 00000000000133c0 R15: ffff88017a509bd0 [ 361.903262] FS: 0000000000000000(0000) GS:ffff88017fc80000(0000) knlGS:00000 00000000000 [ 362.000388] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 362.069352] CR2: 0000000000000028 CR3: 0000000001b97000 CR4: 00000000001006e0 [ 362.155004] Stack: [ 362.179108] ffffffff8104d584 ffff88017fc933c0 ffffffff81795e9b ffff8801785cf 190 [ 362.268335] 0000000000000000 0000000000000246 ffff88017599faf8 ffff88017a509 bd0 [ 362.357560] ffff88017599ffd8 ffff88017a509ef0 ffff88017ab1c180 0000000000000 001 [ 362.446790] Call Trace: [ 362.476122] [] ? wq_worker_sleeping+0x8/0x77 [ 362.547179] [] ? __schedule+0xf2/0x7c9 [ 362.618877] [] ? schedule+0x6b/0x78 [ 362.687444] [] ? do_exit+0x8d3/0x909 [ 362.757059] [] ? printk+0x48/0x4d [ 362.823466] [] ? oops_end+0x9a/0x9f [ 362.891880] [] ? no_context+0x2bc/0x30b [ 362.964436] [] ? page_fault+0x22/0x30 [ 363.034940] [] ? capture_bo+0x4/0x148 [i915] [ 363.112508] [] ? i915_capture_error_state+0x68c/0x141a [i9 15] [ 363.207564] [] ? i915_handle_error+0x7a/0x587 [i915] [ 363.293157] [] ? i915_hangcheck_elapsed+0x325/0x3bf [i915] [ 363.384886] [] ? process_one_work+0x1b2/0x31d [ 363.463014] [] ? worker_thread+0x24d/0x339 [ 363.537953] [] ? cancel_delayed_work_sync+0xa/0xa [ 363.620150] [] ? kthread+0xce/0xd6 [ 363.686663] [] ? kthread_create_on_node+0x162/0x162 [ 363.770916] [] ? ret_from_fork+0x7c/0xb0 [ 363.843673] [] ? kthread_create_on_node+0x162/0x162 [ 363.927937] Code: eb ec 5a 5b 89 e8 5d c3 65 48 8b 04 25 40 a9 00 00 48 8b 80 f0 03 00 00 48 8b 40 c8 48 c1 e8 02 83 e0 01 c3 48 8b 87 f0 03 00 00 <48> 8b 40 d8 c3 48 83 ec 18 48 8b b7 f0 03 00 00 ba 08 00 00 00 [ 364.167744] RIP [] kthread_data+0x7/0xc [ 364.239964] RSP [ 364.288045] CR2: ffffffffffffffd8 [ 364.333994] ---[ end trace 5cf43c740c918517 ]--- [ 364.395548] Fixing recursive fault but reboot is needed! [ 424.472098] INFO: rcu_sched detected stalls on CPUs/tasks: { 1} (detected by 0, t=60002 jiffies, g=4958, c=4957, q=636) [ 424.608247] Task dump for CPU 1: [ 424.653258] kworker/u8:2 D ffffffff81050eae 0 1027 0 0x00000008 [ 424.744378] 0000000000000010 0000000000010002 ffff88017599fa40 0000000000000018 [ 424.839863] ffffffff8104d584 ffff88017fc933c0 ffffffff81795e9b ffff8801785cf190 [ 424.935371] 0000000000000000 0000000000000246 ffff88017599faf8 ffff88017a509bd0 [ 425.030891] Call Trace: [ 425.066555] [] ? wq_worker_sleeping+0x8/0x77 [ 425.143959] [] ? __schedule+0xf2/0x7c9 [ 425.215112] [] ? schedule+0x6b/0x78 [ 425.283119] [] ? do_exit+0x8d3/0x909 [ 425.352155] [] ? printk+0x48/0x4d [ 425.418040] [] ? oops_end+0x9a/0x9f [ 425.485983] [] ? no_context+0x2bc/0x30b [ 425.557896] [] ? page_fault+0x22/0x30 [ 425.627551] [] ? capture_bo+0x4/0x148 [i915] [ 425.704478] [] ? i915_capture_error_state+0x68c/0x141a [i915] [ 425.799187] [] ? i915_handle_error+0x7a/0x587 [i915] [ 425.884519] [] ? i915_hangcheck_elapsed+0x325/0x3bf [i915] [ 425.976041] [] ? process_one_work+0x1b2/0x31d [ 426.053970] [] ? worker_thread+0x24d/0x339 [ 426.128761] [] ? cancel_delayed_work_sync+0xa/0xa [ 426.210859] [] ? kthread+0xce/0xd6 [ 426.277071] [] ? kthread_create_on_node+0x162/0x162 [ 426.360750] [] ? ret_from_fork+0x7c/0xb0 [ 426.432848] [] ? kthread_create_on_node+0x162/0x162