Attachment 127029 Details for Bug 97666 – dp mst null pointer deref on broadwell

dp mst null pointer deref on broadwell

mst-oops.txt (text/plain), 19.42 KB, created by Jani Nikula on 2016-10-05 14:45:02 UTC

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Creator: Jani Nikula

Created: 2016-10-05 14:45:02 UTC

Size: 19.42 KB

patch

obsolete

>[  +8.608382] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00400000, dig 0x10101210, pins 0x00000040
>[  +0.000053] [drm:intel_hpd_irq_handler [i915]] digital hpd port C - long
>[  +0.000046] [drm:intel_hpd_irq_handler [i915]] Received HPD interrupt on PIN 6 - cnt: 0
>[  +0.000101] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port C - long
>[  +0.000538] [drm:intel_dp_read_dpcd [i915]] DPCD: 12 14 c4 01 01 01 01 82 02 02 06 00 00 00 00
>[  +0.001098] [drm:intel_dp_long_pulse [i915]] Display Port TPS3 support: source yes, sink yes
>[  +0.000040] [drm:intel_dp_print_rates [i915]] source rates: 162000, 270000, 540000
>[  +0.000037] [drm:intel_dp_print_rates [i915]] sink rates: 162000, 270000, 540000
>[  +0.000036] [drm:intel_dp_print_rates [i915]] common rates: 162000, 270000, 540000
>[  +0.000362] [drm:intel_dp_long_pulse [i915]] Sink OUI: 000000
>[  +0.000362] [drm:intel_dp_long_pulse [i915]] Branch OUI: 000000
>[  +0.000346] [drm:intel_dp_long_pulse [i915]] sink hw revision: 0.0
>[  +0.000352] [drm:intel_dp_long_pulse [i915]] sink sw revision: 0.0
>[  +0.000344] [drm:intel_dp_long_pulse [i915]] Sink is MST capable
>[  +0.042182] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00400000, dig 0x10101110, pins 0x00000040
>[  +0.000023] [drm:intel_hpd_irq_handler [i915]] digital hpd port C - short
>[  +0.000040] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port C - short
>[  +0.000445] [drm:intel_dp_check_mst_status [i915]] channel EQ not ok, retraining
>[  +0.000930] [drm:intel_dp_set_signal_levels [i915]] Using signal levels 00000000
>[  +0.000015] [drm:intel_dp_set_signal_levels [i915]] Using vswing level 0
>[  +0.000014] [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis level 0
>[  +0.000015] [drm:intel_dp_program_link_training_pattern [i915]] Using DP training pattern TPS1
>[  +0.000631] [drm:intel_dp_set_signal_levels [i915]] Using signal levels 05000000
>[  +0.000014] [drm:intel_dp_set_signal_levels [i915]] Using vswing level 1
>[  +0.000014] [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis level 1
>[  +0.000651] [drm:intel_dp_set_signal_levels [i915]] Using signal levels 08000000
>[  +0.000014] [drm:intel_dp_set_signal_levels [i915]] Using vswing level 2
>[  +0.000014] [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis level 1
>[  +0.000623] [drm:intel_dp_start_link_train [i915]] clock recovery OK
>[  +0.000014] [drm:intel_dp_program_link_training_pattern [i915]] Using DP training pattern TPS3
>[  +0.000929] [drm:intel_dp_start_link_train [i915]] Channel EQ done. DP Training successful
>[  +0.002324] [drm:intel_dp_check_mst_status [i915]] got esi 41 10 00
>[  +0.001357] [drm:intel_dp_check_mst_status [i915]] got esi2 41 10 00
>[  +0.000015] [drm:intel_dp_check_mst_status [i915]] got esi 41 10 00
>[  +0.001350] [drm:intel_dp_check_mst_status [i915]] got esi2 41 00 00
>[  +0.000014] [drm:intel_dp_check_mst_status [i915]] got esi 41 00 00
>[  +0.002111] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00400000, dig 0x10101110, pins 0x00000040
>[  +0.000018] [drm:intel_hpd_irq_handler [i915]] digital hpd port C - short
>[  +0.000034] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port C - short
>[  +0.000431] [drm:intel_dp_check_mst_status [i915]] got esi 41 00 00
>[  +0.003242] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00400000, dig 0x10101110, pins 0x00000040
>[  +0.000020] [drm:intel_hpd_irq_handler [i915]] digital hpd port C - short
>[  +0.000037] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port C - short
>[  +0.000432] [drm:intel_dp_check_mst_status [i915]] got esi 41 10 00
>[  +0.000777] [drm:drm_dp_send_link_address [drm_kms_helper]] link address reply: 3
>[  +0.000008] [drm:drm_dp_send_link_address [drm_kms_helper]] port 0: input 1, pdt: 1, pn: 0, dpcd_rev: 00, mcs: 1, ddps: 1, ldps 0, sdp 0/0
>[  +0.000008] [drm:drm_dp_send_link_address [drm_kms_helper]] port 1: input 0, pdt: 3, pn: 1, dpcd_rev: 11, mcs: 0, ddps: 1, ldps 0, sdp 0/0
>[  +0.000007] [drm:drm_dp_send_link_address [drm_kms_helper]] port 2: input 0, pdt: 0, pn: 8, dpcd_rev: 00, mcs: 0, ddps: 0, ldps 0, sdp 0/0
>[  +0.000553] [drm:intel_dp_check_mst_status [i915]] got esi2 41 00 00
>[  +0.000021] [drm:intel_dp_check_mst_status [i915]] got esi 41 00 00
>[  +0.011439] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
>[  +0.000034] [drm:intel_fbc_underrun_work_fn [i915]] Disabling FBC due to FIFO underrun.
>[  +0.011407] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00400000, dig 0x10101110, pins 0x00000040
>[  +0.000021] [drm:intel_hpd_irq_handler [i915]] digital hpd port C - short
>[  +0.000039] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port C - short
>[  +0.000434] [drm:intel_dp_check_mst_status [i915]] got esi 41 10 00
>[  +0.000431] [drm:drm_dp_send_enum_path_resources.isra.16 [drm_kms_helper]] enum path resources 1: 1280 1280
>[  +0.000271] BUG: unable to handle kernel NULL pointer dereference at           (null)
>[  +0.000062] IP: [<ffffffff98c89f50>] i2c_transfer+0x10/0xb0
>[  +0.000045] PGD 0 
>[  +0.000019] Oops: 0000 [#1] SMP
>[  +0.000024] Modules linked in: bnep(E) nfsd(E) auth_rpcgss(E) nfs_acl(E) nfs(E) lockd(E) grace(E) fscache(E) sunrpc(E) joydev(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E) nls_utf8(E) nls_cp437(E) vfat(E) hid_generic(E) snd_hda_codec_hdmi(E) arc4(E) usbhid(E) hid(E) fat(E) kvm_intel(E) kvm(E) irqbypass(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) iTCO_wdt(E) iTCO_vendor_support(E) evdev(E) ghash_clmulni_intel(E) iwlmvm(E) mac80211(E) snd_hda_codec_generic(E) aesni_intel(E) i915(E) aes_x86_64(E) glue_helper(E) lrw(E) iwlwifi(E) gf128mul(E) btusb(E) efi_pstore(E) ablk_helper(E) btrtl(E) cryptd(E) snd_hda_intel(E) btbcm(E) serio_raw(E) btintel(E) snd_hda_codec(E) snd_hwdep(E) efivars(E) i2c_i801(E) pcspkr(E) snd_hda_core(E) bluetooth(E) i2c_smbus(E) snd_pcm(E) snd_timer(E) cfg80211(E)
>[  +0.000608]  i2c_algo_bit(E) snd(E) soundcore(E) drm_kms_helper(E) rfkill(E) lpc_ich(E) drm(E) mei_me(E) shpchp(E) mei(E) mfd_core(E) battery(E) button(E) video(E) tpm_tis(E) tpm_tis_core(E) tpm(E) fuse(E) autofs4(E) ext4(E) crc16(E) jbd2(E) mbcache(E) sg(E) sd_mod(E) ahci(E) libahci(E) xhci_pci(E) xhci_hcd(E) libata(E) psmouse(E) ehci_pci(E) ehci_hcd(E) scsi_mod(E) e1000e(E) ptp(E) usbcore(E) pps_core(E) usb_common(E) thermal(E) fjes(E)
>[  +0.000321] CPU: 0 PID: 122 Comm: kworker/0:2 Tainted: G            E   4.8.0-rc8+ #215
>[  +0.000055] Hardware name: \xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff \xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff/NUC5i3RYB, BIOS RYBDWi35.86A.0130.2014.1203.1639 12/03/2014
>[  +0.000098] Workqueue: events_long drm_dp_mst_link_probe_work [drm_kms_helper]
>[  +0.000048] task: ffff9954d36202c0 task.stack: ffff9954d32cc000
>[  +0.000041] RIP: 0010:[<ffffffff98c89f50>]  [<ffffffff98c89f50>] i2c_transfer+0x10/0xb0
>[  +0.000061] RSP: 0018:ffff9954d32cfb10  EFLAGS: 00010246
>[  +0.000038] RAX: 0000000000000000 RBX: ffff9954cc611830 RCX: 0000000000000001
>[  +0.000052] RDX: 0000000000000002 RSI: ffff9954d32cfb60 RDI: ffff9954cc611830
>[  +0.000047] RBP: ffff9954d32cfbc0 R08: 0000000000000001 R09: 0000000000000050
>[  +0.000046] R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000002
>[  +0.000045] R13: ffff9954d32cfb4e R14: ffff9954d32cfb4f R15: ffff9954d32cfbf7
>[  +0.000046] FS:  0000000000000000(0000) GS:ffff9954df000000(0000) knlGS:0000000000000000
>[  +0.000040] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:122:DP-4]
>[  +0.000009] [drm:drm_helper_probe_single_connector_modes [drm_kms_helper]] [CONNECTOR:122:DP-4] status updated from unknown to connected
>[  +0.000130] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>[  +0.000037] CR2: 0000000000000000 CR3: 00000001b3606000 CR4: 00000000003406f0
>[  +0.000047] Stack:
>[  +0.000018]  0000000000000005 ffff9954d32cfbc0 0000000000000002 ffffffffc06a67db
>[  +0.000065]  ffff9954d32cfb60 00019954d38f0000 ffff9954cc611830 00000000bbbbbbbb
>[  +0.000061]  ffff000100000030 ffff9954d32cfb4f ffff000100000050 ffff9954d32cfb4e
>[  +0.000057] Call Trace:
>[  +0.000044]  [<ffffffffc06a67db>] ? drm_do_probe_ddc_edid+0xeb/0x160 [drm]
>[  +0.000065]  [<ffffffffc06b31c7>] ? drm_property_create_blob.part.4+0xa7/0xd0 [drm]
>[  +0.000065]  [<ffffffffc06a81bd>] ? drm_get_edid+0x3d/0x3b0 [drm]
>[  +0.000049]  [<ffffffffc07262dd>] ? drm_dp_add_port+0x39d/0x440 [drm_kms_helper]
>[  +0.000051]  [<ffffffff98974b51>] ? printk+0x57/0x73
>[  +0.000039]  [<ffffffffc07264a2>] ? drm_dp_send_link_address+0x122/0x1e0 [drm_kms_helper]
>[  +0.000067]  [<ffffffffc069dc47>] ? drm_printk+0xb7/0xc0 [drm]
>[  +0.000044]  [<ffffffffc07264ee>] ? drm_dp_send_link_address+0x16e/0x1e0 [drm_kms_helper]
>[  +0.000058]  [<ffffffffc0726608>] ? drm_dp_check_and_send_link_address+0xa8/0xb0 [drm_kms_helper]
>[  +0.000063]  [<ffffffffc0726663>] ? drm_dp_mst_link_probe_work+0x53/0xa0 [drm_kms_helper]
>[  +0.000057]  [<ffffffff988946fb>] ? process_one_work+0x14b/0x410
>[  +0.002124]  [<ffffffff988951b5>] ? worker_thread+0x65/0x4a0
>[  +0.002115]  [<ffffffff98dd28ed>] ? __schedule+0x1ed/0x6b0
>[  +0.002104]  [<ffffffff98895150>] ? rescuer_thread+0x340/0x340
>[  +0.002112]  [<ffffffff9889a44f>] ? kthread+0xdf/0x100
>[  +0.002070]  [<ffffffff9882b78b>] ? __switch_to+0x2bb/0x710
>[  +0.002021]  [<ffffffff98dd759f>] ? ret_from_fork+0x1f/0x40
>[  +0.001964]  [<ffffffff9889a370>] ? kthread_park+0x50/0x50
>[  +0.001918] Code: df e8 c5 fb ff ff 89 c2 e9 e9 fc ff ff 45 31 f6 e9 3a fd ff ff 66 0f 1f 44 00 00 0f 1f 44 00 00 41 54 55 53 48 8b 47 10 48 89 fb <48> 83 38 00 74 64 65 8b 05 bb 34 38 67 a9 ff ff ff 7f 48 89 f5 
>[  +0.004009] RIP  [<ffffffff98c89f50>] i2c_transfer+0x10/0xb0
>[  +0.001893]  RSP <ffff9954d32cfb10>
>[  +0.001837] CR2: 0000000000000000
>[  +0.008554] ---[ end trace 9060e7d9305ec29b ]---
>[  +0.002001] [drm:intel_dp_check_mst_status [i915]] got esi2 41 00 00
>[  +0.000029] [drm:intel_dp_check_mst_status [i915]] got esi 41 00 00
>[  +0.115998] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00400000, dig 0x10101110, pins 0x00000040
>[  +0.000021] [drm:intel_hpd_irq_handler [i915]] digital hpd port C - short
>[  +0.000049] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port C - short
>[  +0.000003] BUG: unable to handle kernel paging request at 00000000000191f0
>[  +0.000005] IP: [<ffffffff988c2f94>] native_queued_spin_lock_slowpath+0x104/0x190
>[  +0.000001] PGD 0 
>[  +0.000001] Oops: 0002 [#2] SMP
>[  +0.000019] Modules linked in: bnep(E) nfsd(E) auth_rpcgss(E) nfs_acl(E) nfs(E) lockd(E) grace(E) fscache(E) sunrpc(E) joydev(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E) nls_utf8(E) nls_cp437(E) vfat(E) hid_generic(E) snd_hda_codec_hdmi(E) arc4(E) usbhid(E) hid(E) fat(E) kvm_intel(E) kvm(E) irqbypass(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) iTCO_wdt(E) iTCO_vendor_support(E) evdev(E) ghash_clmulni_intel(E) iwlmvm(E) mac80211(E) snd_hda_codec_generic(E) aesni_intel(E) i915(E) aes_x86_64(E) glue_helper(E) lrw(E) iwlwifi(E) gf128mul(E) btusb(E) efi_pstore(E) ablk_helper(E) btrtl(E) cryptd(E) snd_hda_intel(E) btbcm(E) serio_raw(E) btintel(E) snd_hda_codec(E) snd_hwdep(E) efivars(E) i2c_i801(E) pcspkr(E) snd_hda_core(E) bluetooth(E) i2c_smbus(E) snd_pcm(E) snd_timer(E) cfg80211(E)
>[  +0.000013]  i2c_algo_bit(E) snd(E) soundcore(E) drm_kms_helper(E) rfkill(E) lpc_ich(E) drm(E) mei_me(E) shpchp(E) mei(E) mfd_core(E) battery(E) button(E) video(E) tpm_tis(E) tpm_tis_core(E) tpm(E) fuse(E) autofs4(E) ext4(E) crc16(E) jbd2(E) mbcache(E) sg(E) sd_mod(E) ahci(E) libahci(E) xhci_pci(E) xhci_hcd(E) libata(E) psmouse(E) ehci_pci(E) ehci_hcd(E) scsi_mod(E) e1000e(E) ptp(E) usbcore(E) pps_core(E) usb_common(E) thermal(E) fjes(E)
>[  +0.000002] CPU: 0 PID: 122 Comm: kworker/0:2 Tainted: G      D     E   4.8.0-rc8+ #215
>[  +0.000000] Hardware name: \xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff \xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff/NUC5i3RYB, BIOS RYBDWi35.86A.0130.2014.1203.1639 12/03/2014
>[  +0.000011] task: ffff9954d36202c0 task.stack: ffff9954d32cc000
>[  +0.000003] RIP: 0010:[<ffffffff988c2f94>]  [<ffffffff988c2f94>] native_queued_spin_lock_slowpath+0x104/0x190
>[  +0.000000] RSP: 0018:ffff9954d32cfe90  EFLAGS: 00010006
>[  +0.000001] RAX: 000000000000112e RBX: 0000000000000282 RCX: ffff9954df0191c0
>[  +0.000001] RDX: 00000000000191f0 RSI: 0000000044bf1c79 RDI: ffff9954d32cff18
>[  +0.000000] RBP: ffff9954d32cff10 R08: 0000000000040000 R09: 0000000000000000
>[  +0.000001] R10: 00000000d9fb5890 R11: ffff9954d32cf6c0 R12: ffff9954d32cfa68
>[  +0.000001] R13: 0000000000000000 R14: 0000000000000046 R15: 0000000000000001
>[  +0.000001] FS:  0000000000000000(0000) GS:ffff9954df000000(0000) knlGS:0000000000000000
>[  +0.000001] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>[  +0.000000] CR2: 0000000000000028 CR3: 00000001b3606000 CR4: 00000000003406f0
>[  +0.000001] Stack:
>[  +0.000002]  ffffffff98dd72b2 ffff9954d32cff18 ffffffff988bcfb8 ffff9954d3620928
>[  +0.000001]  ffff9954d36202c0 ffff9954d32cfa68 ffffffff98878800 ffff9954d36202c0
>[  +0.000001]  0000000000000009 ffffffff9887edf3 ffffffff9882b78b 00000000d304fc00
>[  +0.000001] Call Trace:
>[  +0.000002]  [<ffffffff98dd72b2>] ? _raw_spin_lock_irqsave+0x32/0x40
>[  +0.000002]  [<ffffffff988bcfb8>] ? complete+0x18/0x40
>[  +0.000003]  [<ffffffff98878800>] ? mm_release+0xb0/0x130
>[  +0.000001]  [<ffffffff9887edf3>] ? do_exit+0x153/0xb40
>[  +0.000002]  [<ffffffff9882b78b>] ? __switch_to+0x2bb/0x710
>[  +0.000002]  [<ffffffff98dd8a77>] ? rewind_stack_do_exit+0x17/0x20
>[  +0.000002]  [<ffffffff9889a370>] ? kthread_park+0x50/0x50
>[  +0.000015] Code: c1 e0 10 45 31 c9 85 c0 74 44 48 89 c2 c1 e8 12 48 c1 ea 0c 83 e8 01 83 e2 30 48 98 48 81 c2 c0 91 01 00 48 03 14 c5 40 67 32 99 <48> 89 0a 8b 41 08 85 c0 75 09 f3 90 8b 41 08 85 c0 74 f7 4c 8b 
>[  +0.000003] RIP  [<ffffffff988c2f94>] native_queued_spin_lock_slowpath+0x104/0x190
>[  +0.000000]  RSP <ffff9954d32cfe90>
>[  +0.000000] CR2: 00000000000191f0
>[  +0.000002] ---[ end trace 9060e7d9305ec29c ]---
>[  +0.046683] [drm:intel_dp_check_mst_status [i915]] got esi 41 10 00
>[  +0.071191] Fixing recursive fault but reboot is needed!
>[  +0.000020] BUG: unable to handle kernel paging request at ffffffffffffffd8
>[  +0.001769] IP: [<ffffffff9889ac6c>] kthread_data+0xc/0x20
>[  +0.001728] PGD 1b3609067 PUD 1b360b067 PMD 0 
>[  +0.001683] Oops: 0000 [#3] SMP
>[  +0.001645] Modules linked in: bnep(E) nfsd(E) auth_rpcgss(E) nfs_acl(E) nfs(E) lockd(E) grace(E) fscache(E) sunrpc(E) joydev(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E) nls_utf8(E) nls_cp437(E) vfat(E) hid_generic(E) snd_hda_codec_hdmi(E) arc4(E) usbhid(E) hid(E) fat(E) kvm_intel(E) kvm(E) irqbypass(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) iTCO_wdt(E) iTCO_vendor_support(E) evdev(E) ghash_clmulni_intel(E) iwlmvm(E) mac80211(E) snd_hda_codec_generic(E) aesni_intel(E) i915(E) aes_x86_64(E) glue_helper(E) lrw(E) iwlwifi(E) gf128mul(E) btusb(E) efi_pstore(E) ablk_helper(E) btrtl(E) cryptd(E) snd_hda_intel(E) btbcm(E) serio_raw(E) btintel(E) snd_hda_codec(E) snd_hwdep(E) efivars(E) i2c_i801(E) pcspkr(E) snd_hda_core(E) bluetooth(E) i2c_smbus(E) snd_pcm(E) snd_timer(E) cfg80211(E)
>[  +0.010969]  i2c_algo_bit(E) snd(E) soundcore(E) drm_kms_helper(E) rfkill(E) lpc_ich(E) drm(E) mei_me(E) shpchp(E) mei(E) mfd_core(E) battery(E) button(E) video(E) tpm_tis(E) tpm_tis_core(E) tpm(E) fuse(E) autofs4(E) ext4(E) crc16(E) jbd2(E) mbcache(E) sg(E) sd_mod(E) ahci(E) libahci(E) xhci_pci(E) xhci_hcd(E) libata(E) psmouse(E) ehci_pci(E) ehci_hcd(E) scsi_mod(E) e1000e(E) ptp(E) usbcore(E) pps_core(E) usb_common(E) thermal(E) fjes(E)
>[  +0.007984] CPU: 0 PID: 122 Comm: kworker/0:2 Tainted: G      D     E   4.8.0-rc8+ #215
>[  +0.002036] Hardware name: \xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff \xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff/NUC5i3RYB, BIOS RYBDWi35.86A.0130.2014.1203.1639 12/03/2014
>[  +0.004088] task: ffff9954d36202c0 task.stack: ffff9954d32cc000
>[  +0.002054] RIP: 0010:[<ffffffff9889ac6c>]  [<ffffffff9889ac6c>] kthread_data+0xc/0x20
>[  +0.002076] RSP: 0018:ffff9954d32cfe78  EFLAGS: 00010002
>[  +0.002055] RAX: 0000000000000000 RBX: ffff9954df0186c0 RCX: 0000000000000000
>[  +0.002068] RDX: ffff9954d6406000 RSI: ffff9954d36202c0 RDI: ffff9954d36202c0
>[  +0.001535] [drm:intel_dp_check_mst_status [i915]] got esi2 41 20 00
>[  +0.000022] [drm:intel_dp_check_mst_status [i915]] got esi 41 20 00
>[  +0.004597] RBP: ffff9954d36202c0 R08: ffff9954d3620368 R09: 0000000000000001
>[  +0.002043] R10: 000000000007f800 R11: 0000000000000001 R12: 00000000000186c0
>[  +0.002043] R13: 0000000000000000 R14: ffff9954d36207d0 R15: 0000000000030001
>[  +0.002035] FS:  0000000000000000(0000) GS:ffff9954df000000(0000) knlGS:0000000000000000
>[  +0.002048] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>[  +0.002034] CR2: 0000000000000028 CR3: 00000001b3606000 CR4: 00000000003406f0
>[  +0.002046] Stack:
>[  +0.002016]  ffffffff9889565a ffffffff98dd2bff ffff9954d32cfe98 0000000044bf1c79
>[  +0.002069]  ffff9954d32d0000 0000000000000009 ffff9954d32cfde8 00000000000191f0
>[  +0.002060]  0000000000000046 0000000000030001 ffffffff98dd2de1 ffff9954d36202c0
>[  +0.002051] Call Trace:
>[  +0.002032]  [<ffffffff9889565a>] ? wq_worker_sleeping+0xa/0x80
>[  +0.002066]  [<ffffffff98dd2bff>] ? __schedule+0x4ff/0x6b0
>[  +0.002065]  [<ffffffff98dd2de1>] ? schedule+0x31/0x80
>[  +0.002057]  [<ffffffff9887f61d>] ? do_exit+0x97d/0xb40
>[  +0.002058]  [<ffffffff9882b78b>] ? __switch_to+0x2bb/0x710
>[  +0.002060]  [<ffffffff98dd8a77>] ? rewind_stack_do_exit+0x17/0x20
>[  +0.002070]  [<ffffffff9889a370>] ? kthread_park+0x50/0x50
>[  +0.002025] Code: 00 00 00 75 bb 48 8b 53 08 4c 89 e6 48 89 df e8 1b f8 ff ff 31 d2 eb a8 e8 12 04 fe ff 66 90 0f 1f 44 00 00 48 8b 87 b0 04 00 00 <48> 8b 40 d8 c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 0f 
>[  +0.004245] RIP  [<ffffffff9889ac6c>] kthread_data+0xc/0x20
>[  +0.002058]  RSP <ffff9954d32cfe78>
>[  +0.002054] CR2: ffffffffffffffd8
>[  +0.002036] ---[ end trace 9060e7d9305ec29d ]---
>[  +0.089830] [drm:drm_dp_mst_handle_up_req [drm_kms_helper]] Got CSN: pn: 8 ldps:0 ddps: 1 mcs: 0 ip: 0 pdt: 3
>[  +0.023887] Fixing recursive fault but reboot is needed!
>
>

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Attachments on bug 97666: 126335 | 126336 | 127006 | 127029 | 127155 | 127156 | 127227 | 127228 | 127461

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