[Bug 89565] New: [bdw MST?] WARNING drm_warn_on_modeset_not_all_locked

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Mar 13 01:41:13 PDT 2015 

https://bugs.freedesktop.org/show_bug.cgi?id=89565

            Bug ID: 89565
           Summary: [bdw MST?] WARNING drm_warn_on_modeset_not_all_locked
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: chris at chris-wilson.co.uk
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

I have tons of these in my logs (and a lockup eventually on hotplugging,
probably related). Also probably struck when using MST. Most frequently it is:

Mar 12 14:13:00 xps13 kernel: [28179.594692] ------------[ cut here
]------------
Mar 12 14:13:00 xps13 kernel: [28179.594721] WARNING: CPU: 2 PID: 1329 at
drivers/gpu/drm/drm_modeset_lock.c:278
drm_warn_on_modeset_not_all_locked+0xb0/0xc0 [drm]()
Mar 12 14:13:00 xps13 kernel: [28179.594722] Modules linked in: btrfs xor
raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c dell_laptop
dcdbas dell_wmi sparse_keymap uvcvideo dm_multipath scsi_dh wl(POE)
x86_pkg_temp_thermal videobuf2_vmalloc intel_powerclamp videobuf2_memops
videobuf2_core coretemp v4l2_common kvm_intel snd_hda_codec_hdmi kvm cfg80211
btusb bnep snd_hda_intel rfcomm bluetooth crct10dif_pclmul crc32_pclmul
ghash_clmulni_intel aesni_intel videodev snd_hda_controller aes_x86_64
snd_hda_codec hid_multitouch joydev lrw rtsx_pci_ms gf128mul glue_helper mei_me
ablk_helper memstick serio_raw cryptd mei snd_hwdep snd_pcm shpchp snd_seq_midi
lpc_ich snd_seq_midi_event snd_rawmidi snd_seq binfmt_misc dw_dmac
snd_seq_device snd_timer snd i2c_hid dw_dmac_core nls_iso8859_1 8250_dw
i2c_designware_platform spi_pxa2xx_platform i2c_designware_core parport_pc
soundcore intel_smartconnect ppdev acpi_pad mac_hid lp parport dm_mirror
dm_region_hash dm_log usbhid hid i915 i2c_algo_bit drm_kms_helper drm
rtsx_pci_sdmmc psmouse ahci libahci rtsx_pci wmi sdhci_acpi video sdhci
Mar 12 14:13:00 xps13 kernel: [28179.594767] CPU: 2 PID: 1329 Comm: Xorg
Tainted: P        W  OE   4.0.0-rc3+ #2
Mar 12 14:13:00 xps13 kernel: [28179.594769] Hardware name: Dell Inc. XPS 13
9343/0310JH, BIOS A00 11/04/2014
Mar 12 14:13:00 xps13 kernel: [28179.594770]  ffffffffa00cb700 ffff8802039dfcb8
ffffffff81789304 0000000000000000
Mar 12 14:13:00 xps13 kernel: [28179.594773]  0000000000000000 ffff8802039dfcf8
ffffffff8107254a ffff8802039dfd08
Mar 12 14:13:00 xps13 kernel: [28179.594775]  ffff8801fa113368 ffff8801fa113378
ffff8801fa113000 00000000fffffffe
Mar 12 14:13:00 xps13 kernel: [28179.594777] Call Trace:
Mar 12 14:13:00 xps13 kernel: [28179.594784]  [<ffffffff81789304>]
dump_stack+0x45/0x57
Mar 12 14:13:00 xps13 kernel: [28179.594788]  [<ffffffff8107254a>]
warn_slowpath_common+0x8a/0xc0
Mar 12 14:13:00 xps13 kernel: [28179.594791]  [<ffffffff8107263a>]
warn_slowpath_null+0x1a/0x20
Mar 12 14:13:00 xps13 kernel: [28179.594803]  [<ffffffffa00b3fe0>]
drm_warn_on_modeset_not_all_locked+0xb0/0xc0 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.594815]  [<ffffffffa00b4606>]
__drm_modeset_lock_all+0xb6/0x120 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.594826]  [<ffffffffa00b4680>]
drm_modeset_lock_all+0x10/0x30 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.594838]  [<ffffffffa00a9af3>]
drm_mode_getblob_ioctl+0x33/0xa0 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.594847]  [<ffffffffa0099ab4>]
drm_ioctl+0x1a4/0x630 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.594852]  [<ffffffff811fc7f8>]
do_vfs_ioctl+0x2f8/0x510
Mar 12 14:13:00 xps13 kernel: [28179.594855]  [<ffffffff811eb465>] ?
__sb_end_write+0x35/0x70
Mar 12 14:13:00 xps13 kernel: [28179.594858]  [<ffffffff811e8f12>] ?
vfs_write+0x172/0x1f0
Mar 12 14:13:00 xps13 kernel: [28179.594860]  [<ffffffff811fca91>]
SyS_ioctl+0x81/0xa0
Mar 12 14:13:00 xps13 kernel: [28179.594863]  [<ffffffff81790e8d>]
system_call_fastpath+0x16/0x1b
Mar 12 14:13:00 xps13 kernel: [28179.594865] ---[ end trace bdccadb1bbef5c4a
]---
Mar 12 14:13:00 xps13 kernel: [28179.595608] ------------[ cut here
]------------

Mar 12 14:13:00 xps13 kernel: [28179.604920] ------------[ cut here
]------------
Mar 12 14:13:00 xps13 kernel: [28179.604990] WARNING: CPU: 0 PID: 1329 at
drivers/gpu/drm/drm_modeset_lock.c:278
drm_warn_on_modeset_not_all_locked+0xb0/0xc0 [drm]()
Mar 12 14:13:00 xps13 kernel: [28179.604992] Modules linked in: btrfs xor
raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c dell_laptop
dcdbas dell_wmi sparse_keymap uvcvideo dm_multipath scsi_dh wl(POE)
x86_pkg_temp_thermal videobuf2_vmalloc intel_powerclamp videobuf2_memops
videobuf2_core coretemp v4l2_common kvm_intel snd_hda_codec_hdmi kvm cfg80211
btusb bnep snd_hda_intel rfcomm bluetooth crct10dif_pclmul crc32_pclmul
ghash_clmulni_intel aesni_intel videodev snd_hda_controller aes_x86_64
snd_hda_codec hid_multitouch joydev lrw rtsx_pci_ms gf128mul glue_helper mei_me
ablk_helper memstick serio_raw cryptd mei snd_hwdep snd_pcm shpchp snd_seq_midi
lpc_ich snd_seq_midi_event snd_rawmidi snd_seq binfmt_misc dw_dmac
snd_seq_device snd_timer snd i2c_hid dw_dmac_core nls_iso8859_1 8250_dw
i2c_designware_platform spi_pxa2xx_platform i2c_designware_core parport_pc
soundcore intel_smartconnect ppdev acpi_pad mac_hid lp parport dm_mirror
dm_region_hash dm_log usbhid hid i915 i2c_algo_bit drm_kms_helper drm
rtsx_pci_sdmmc psmouse ahci libahci rtsx_pci wmi sdhci_acpi video sdhci
Mar 12 14:13:00 xps13 kernel: [28179.605041] CPU: 0 PID: 1329 Comm: Xorg
Tainted: P        W  OE   4.0.0-rc3+ #2
Mar 12 14:13:00 xps13 kernel: [28179.605043] Hardware name: Dell Inc. XPS 13
9343/0310JH, BIOS A00 11/04/2014
Mar 12 14:13:00 xps13 kernel: [28179.605046]  ffffffffa00cb700 ffff8802039dfc58
ffffffff81789304 0000000000000000
Mar 12 14:13:00 xps13 kernel: [28179.605049]  0000000000000000 ffff8802039dfc98
ffffffff8107254a ffff8802039dfca8
Mar 12 14:13:00 xps13 kernel: [28179.605050]  ffff8801fa113368 ffff8801fa113378
ffff8801fa113000 ffff8801fa113000
Mar 12 14:13:00 xps13 kernel: [28179.605053] Call Trace:
Mar 12 14:13:00 xps13 kernel: [28179.605067]  [<ffffffff81789304>]
dump_stack+0x45/0x57
Mar 12 14:13:00 xps13 kernel: [28179.605073]  [<ffffffff8107254a>]
warn_slowpath_common+0x8a/0xc0
Mar 12 14:13:00 xps13 kernel: [28179.605075]  [<ffffffff8107263a>]
warn_slowpath_null+0x1a/0x20
Mar 12 14:13:00 xps13 kernel: [28179.605096]  [<ffffffffa00b3fe0>]
drm_warn_on_modeset_not_all_locked+0xb0/0xc0 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.605110]  [<ffffffffa00b4606>]
__drm_modeset_lock_all+0xb6/0x120 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.605122]  [<ffffffffa00b4680>]
drm_modeset_lock_all+0x10/0x30 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.605134]  [<ffffffffa00a8c5d>]
drm_mode_setcrtc+0x4d/0x630 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.605176]  [<ffffffffa015fb95>] ?
i915_gem_execbuffer2+0x175/0x2c0 [i915]
Mar 12 14:13:00 xps13 kernel: [28179.605181]  [<ffffffff811caddd>] ?
kfree+0xfd/0x130
Mar 12 14:13:00 xps13 kernel: [28179.605193]  [<ffffffffa0099ab4>]
drm_ioctl+0x1a4/0x630 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.605202]  [<ffffffff811fc7f8>]
do_vfs_ioctl+0x2f8/0x510
Mar 12 14:13:00 xps13 kernel: [28179.605207]  [<ffffffff8107f242>] ?
__set_task_blocked+0x32/0x70
Mar 12 14:13:00 xps13 kernel: [28179.605209]  [<ffffffff811fca91>]
SyS_ioctl+0x81/0xa0
Mar 12 14:13:00 xps13 kernel: [28179.605215]  [<ffffffff81790e8d>]
system_call_fastpath+0x16/0x1b
Mar 12 14:13:00 xps13 kernel: [28179.605217] ---[ end trace bdccadb1bbef5c4d
]---
Mar 12 14:13:00 xps13 kernel: [28179.637409] ------------[ cut here
]------------

Mar 12 14:13:00 xps13 kernel: [28179.942580] WARNING: CPU: 2 PID: 1329 at
drivers/gpu/drm/drm_modeset_lock.c:278
drm_warn_on_modeset_not_all_locked+0xb0/0xc0 [drm]()
Mar 12 14:13:00 xps13 kernel: [28179.942582] Modules linked in: btrfs xor
raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c dell_laptop
dcdbas dell_wmi sparse_keymap uvcvideo dm_multipath scsi_dh wl(POE)
x86_pkg_temp_thermal videobuf2_vmalloc intel_powerclamp videobuf2_memops
videobuf2_core coretemp v4l2_common kvm_intel snd_hda_codec_hdmi kvm cfg80211
btusb bnep snd_hda_intel rfcomm bluetooth crct10dif_pclmul crc32_pclmul
ghash_clmulni_intel aesni_intel videodev snd_hda_controller aes_x86_64
snd_hda_codec hid_multitouch joydev lrw rtsx_pci_ms gf128mul glue_helper mei_me
ablk_helper memstick serio_raw cryptd mei snd_hwdep snd_pcm shpchp snd_seq_midi
lpc_ich snd_seq_midi_event snd_rawmidi snd_seq binfmt_misc dw_dmac
snd_seq_device snd_timer snd i2c_hid dw_dmac_core nls_iso8859_1 8250_dw
i2c_designware_platform spi_pxa2xx_platform i2c_designware_core parport_pc
soundcore intel_smartconnect ppdev acpi_pad mac_hid lp parport dm_mirror
dm_region_hash dm_log usbhid hid i915 i2c_algo_bit drm_kms_helper drm
rtsx_pci_sdmmc psmouse ahci libahci rtsx_pci wmi sdhci_acpi video sdhci
Mar 12 14:13:00 xps13 kernel: [28179.942646] CPU: 2 PID: 1329 Comm: Xorg
Tainted: P        W  OE   4.0.0-rc3+ #2
Mar 12 14:13:00 xps13 kernel: [28179.942648] Hardware name: Dell Inc. XPS 13
9343/0310JH, BIOS A00 11/04/2014
Mar 12 14:13:00 xps13 kernel: [28179.942651]  ffffffffa00cb700 ffff8802039dfc98
ffffffff81789304 0000000000000000
Mar 12 14:13:00 xps13 kernel: [28179.942653]  0000000000000000 ffff8802039dfcd8
ffffffff8107254a ffff8802039dfce8
Mar 12 14:13:00 xps13 kernel: [28179.942655]  ffff8801fa113368 ffff8801fa113378
ffff8801fa113000 00000000fffffffe
Mar 12 14:13:00 xps13 kernel: [28179.942658] Call Trace:
Mar 12 14:13:00 xps13 kernel: [28179.942687]  [<ffffffff81789304>]
dump_stack+0x45/0x57
Mar 12 14:13:00 xps13 kernel: [28179.942697]  [<ffffffff8107254a>]
warn_slowpath_common+0x8a/0xc0
Mar 12 14:13:00 xps13 kernel: [28179.942702]  [<ffffffff8107263a>]
warn_slowpath_null+0x1a/0x20
Mar 12 14:13:00 xps13 kernel: [28179.942754]  [<ffffffffa00b3fe0>]
drm_warn_on_modeset_not_all_locked+0xb0/0xc0 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.942801]  [<ffffffffa00b4606>]
__drm_modeset_lock_all+0xb6/0x120 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.942844]  [<ffffffffa00b4680>]
drm_modeset_lock_all+0x10/0x30 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.942889]  [<ffffffffa00aa0ca>]
drm_mode_gamma_set_ioctl+0x3a/0x130 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.942900]  [<ffffffff8166c3b4>] ?
___sys_recvmsg+0xe4/0x200
Mar 12 14:13:00 xps13 kernel: [28179.942954]  [<ffffffffa0099ab4>]
drm_ioctl+0x1a4/0x630 [drm]
Mar 12 14:13:00 xps13 kernel: [28179.942964]  [<ffffffff810dd3a8>] ?
__hrtimer_start_range_ns+0x288/0x3c0
Mar 12 14:13:00 xps13 kernel: [28179.942971]  [<ffffffff811fc7f8>]
do_vfs_ioctl+0x2f8/0x510
Mar 12 14:13:00 xps13 kernel: [28179.942976]  [<ffffffff8166ce15>] ?
__sys_recvmsg+0x65/0x80
Mar 12 14:13:16 xps13 kernel: [28195.017670] WARNING: CPU: 0 PID: 1329 at
drivers/gpu/drm/drm_modeset_lock.c:278
drm_warn_on_modeset_not_all_locked+0xb0/0xc0 [drm]()
Mar 12 14:13:16 xps13 kernel: [28195.017687] Modules linked in: btrfs xor
raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c dell_laptop
dcdbas dell_wmi sparse_keymap uvcvideo dm_multipath scsi_dh wl(POE)
x86_pkg_temp_thermal videobuf2_vmalloc intel_powerclamp videobuf2_memops
videobuf2_core coretemp v4l2_common kvm_intel snd_hda_codec_hdmi kvm cfg80211
btusb bnep snd_hda_intel rfcomm bluetooth crct10dif_pclmul crc32_pclmul
ghash_clmulni_intel aesni_intel videodev snd_hda_controller aes_x86_64
snd_hda_codec hid_multitouch joydev lrw rtsx_pci_ms gf128mul glue_helper mei_me
ablk_helper memstick serio_raw cryptd mei snd_hwdep snd_pcm shpchp snd_seq_midi
lpc_ich snd_seq_midi_event snd_rawmidi snd_seq binfmt_misc dw_dmac
snd_seq_device snd_timer snd i2c_hid dw_dmac_core nls_iso8859_1 8250_dw
i2c_designware_platform spi_pxa2xx_platform i2c_designware_core parport_pc
soundcore intel_smartconnect ppdev acpi_pad mac_hid lp parport dm_mirror
dm_region_hash dm_log usbhid hid i915 i2c_algo_bit drm_kms_helper drm
rtsx_pci_sdmmc psmouse ahci libahci rtsx_pci wmi sdhci_acpi video sdhci
Mar 12 14:13:16 xps13 kernel: [28195.017745] CPU: 0 PID: 1329 Comm: Xorg
Tainted: P        W  OE   4.0.0-rc3+ #2
Mar 12 14:13:16 xps13 kernel: [28195.017746] Hardware name: Dell Inc. XPS 13
9343/0310JH, BIOS A00 11/04/2014
Mar 12 14:13:16 xps13 kernel: [28195.017747]  ffffffffa00cb700 ffff8802039dfc58
ffffffff81789304 0000000000000000
Mar 12 14:13:16 xps13 kernel: [28195.017749]  0000000000000000 ffff8802039dfc98
ffffffff8107254a ffff8802039dfca8
Mar 12 14:13:16 xps13 kernel: [28195.017750]  ffff8801fa113368 ffff8801fa113378
ffff8801fa113000 ffff880029ab0800
Mar 12 14:13:16 xps13 kernel: [28195.017752] Call Trace:
Mar 12 14:13:16 xps13 kernel: [28195.017770]  [<ffffffff81789304>]
dump_stack+0x45/0x57
Mar 12 14:13:16 xps13 kernel: [28195.017773]  [<ffffffff8107254a>]
warn_slowpath_common+0x8a/0xc0
Mar 12 14:13:16 xps13 kernel: [28195.017775]  [<ffffffff8107263a>]
warn_slowpath_null+0x1a/0x20
Mar 12 14:13:16 xps13 kernel: [28195.017784]  [<ffffffffa00b3fe0>]
drm_warn_on_modeset_not_all_locked+0xb0/0xc0 [drm]
Mar 12 14:13:16 xps13 kernel: [28195.017806]  [<ffffffffa00b4606>]
__drm_modeset_lock_all+0xb6/0x120 [drm]
Mar 12 14:13:16 xps13 kernel: [28195.017826]  [<ffffffffa00b4680>]
drm_modeset_lock_all+0x10/0x30 [drm]
Mar 12 14:13:16 xps13 kernel: [28195.017848]  [<ffffffffa00a8af3>]
drm_mode_setplane+0x113/0x230 [drm]
Mar 12 14:13:16 xps13 kernel: [28195.017850]  [<ffffffff8107e8f6>] ?
dequeue_signal+0x36/0x180
Mar 12 14:13:16 xps13 kernel: [28195.017857]  [<ffffffffa0099ab4>]
drm_ioctl+0x1a4/0x630 [drm]
Mar 12 14:13:16 xps13 kernel: [28195.017873]  [<ffffffff8101465e>] ?
do_signal+0x19e/0xaa0
Mar 12 14:13:16 xps13 kernel: [28195.017890]  [<ffffffff8102181b>] ?
__restore_xstate_sig+0x8b/0x680
Mar 12 14:13:16 xps13 kernel: [28195.017893]  [<ffffffff811fc7f8>]
do_vfs_ioctl+0x2f8/0x510
Mar 12 14:13:16 xps13 kernel: [28195.017895]  [<ffffffff8107f242>] ?
__set_task_blocked+0x32/0x70
Mar 12 14:13:16 xps13 kernel: [28195.017897]  [<ffffffff811fca91>]
SyS_ioctl+0x81/0xa0
Mar 12 14:13:16 xps13 kernel: [28195.017899]  [<ffffffff81790e8d>]
system_call_fastpath+0x16/0x1b
Mar 12 14:13:16 xps13 kernel: [28195.017900] ---[ end trace bdccadb1bbef5c54
]---
Mar 12 14:13:16 xps13 kernel: [28195.034292] ------------[ cut here
]------------

Mar 12 14:13:16 xps13 kernel: [28195.034826] ------------[ cut here
]------------
Mar 12 14:13:16 xps13 kernel: [28195.034833] WARNING: CPU: 0 PID: 1329 at
drivers/gpu/drm/drm_modeset_lock.c:278
drm_warn_on_modeset_not_all_locked+0xb0/0xc0 [drm]()
Mar 12 14:13:16 xps13 kernel: [28195.034845] Modules linked in: btrfs xor
raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c dell_laptop
dcdbas dell_wmi sparse_keymap uvcvideo dm_multipath scsi_dh wl(POE)
x86_pkg_temp_thermal videobuf2_vmalloc intel_powerclamp videobuf2_memops
videobuf2_core coretemp v4l2_common kvm_intel snd_hda_codec_hdmi kvm cfg80211
btusb bnep snd_hda_intel rfcomm bluetooth crct10dif_pclmul crc32_pclmul
ghash_clmulni_intel aesni_intel videodev snd_hda_controller aes_x86_64
snd_hda_codec hid_multitouch joydev lrw rtsx_pci_ms gf128mul glue_helper mei_me
ablk_helper memstick serio_raw cryptd mei snd_hwdep snd_pcm shpchp snd_seq_midi
lpc_ich snd_seq_midi_event snd_rawmidi snd_seq binfmt_misc dw_dmac
snd_seq_device snd_timer snd i2c_hid dw_dmac_core nls_iso8859_1 8250_dw
i2c_designware_platform spi_pxa2xx_platform i2c_designware_core parport_pc
soundcore intel_smartconnect ppdev acpi_pad mac_hid lp parport dm_mirror
dm_region_hash dm_log usbhid hid i915 i2c_algo_bit drm_kms_helper drm
rtsx_pci_sdmmc psmouse ahci libahci rtsx_pci wmi sdhci_acpi video sdhci
Mar 12 14:13:16 xps13 kernel: [28195.034850] CPU: 0 PID: 1329 Comm: Xorg
Tainted: P        W  OE   4.0.0-rc3+ #2
Mar 12 14:13:16 xps13 kernel: [28195.034851] Hardware name: Dell Inc. XPS 13
9343/0310JH, BIOS A00 11/04/2014
Mar 12 14:13:16 xps13 kernel: [28195.034852]  ffffffffa00cb700 ffff8802039df9e8
ffffffff81789304 0000000008660866
Mar 12 14:13:16 xps13 kernel: [28195.034853]  0000000000000000 ffff8802039dfa28
ffffffff8107254a ffff8802039dfa38
Mar 12 14:13:16 xps13 kernel: [28195.034853]  ffff8801fa113368 ffff8801fa113378
ffff8801fa113000 ffff8801fa116860
Mar 12 14:13:16 xps13 kernel: [28195.034854] Call Trace:
Mar 12 14:13:16 xps13 kernel: [28195.034856]  [<ffffffff81789304>]
dump_stack+0x45/0x57
Mar 12 14:13:16 xps13 kernel: [28195.034857]  [<ffffffff8107254a>]
warn_slowpath_common+0x8a/0xc0
Mar 12 14:13:16 xps13 kernel: [28195.034859]  [<ffffffff8107263a>]
warn_slowpath_null+0x1a/0x20
Mar 12 14:13:16 xps13 kernel: [28195.034865]  [<ffffffffa00b3fe0>]
drm_warn_on_modeset_not_all_locked+0xb0/0xc0 [drm]
Mar 12 14:13:16 xps13 kernel: [28195.034872]  [<ffffffffa00b4606>]
__drm_modeset_lock_all+0xb6/0x120 [drm]
Mar 12 14:13:16 xps13 kernel: [28195.034878]  [<ffffffffa00b4680>]
drm_modeset_lock_all+0x10/0x30 [drm]
Mar 12 14:13:16 xps13 kernel: [28195.034884]  [<ffffffffa0117921>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x21/0x80 [drm_kms_helper]
Mar 12 14:13:16 xps13 kernel: [28195.034888]  [<ffffffffa01179a2>]
drm_fb_helper_set_par+0x22/0x50 [drm_kms_helper]
Mar 12 14:13:16 xps13 kernel: [28195.034903]  [<ffffffffa01bef0a>]
intel_fbdev_set_par+0x1a/0x60 [i915]
Mar 12 14:13:16 xps13 kernel: [28195.034905]  [<ffffffff81411ea1>]
fb_set_var+0x191/0x430
Mar 12 14:13:16 xps13 kernel: [28195.034907]  [<ffffffff81408cc1>]
fbcon_blank+0x1d1/0x2d0
Mar 12 14:13:16 xps13 kernel: [28195.034909]  [<ffffffff814a06e8>]
do_unblank_screen+0xb8/0x1f0
Mar 12 14:13:16 xps13 kernel: [28195.034911]  [<ffffffff81497632>]
vt_ioctl+0x1102/0x1180
Mar 12 14:13:16 xps13 kernel: [28195.034913]  [<ffffffff81489c3c>]
tty_ioctl+0x1fc/0xc90
Mar 12 14:13:16 xps13 kernel: [28195.034914]  [<ffffffff81193c51>] ?
kzfree+0x31/0x40
Mar 12 14:13:16 xps13 kernel: [28195.034916]  [<ffffffff811caddd>] ?
kfree+0xfd/0x130
Mar 12 14:13:16 xps13 kernel: [28195.034917]  [<ffffffff812000af>] ?
dput+0xef/0x200
Mar 12 14:13:16 xps13 kernel: [28195.034918]  [<ffffffff811fc7f8>]
do_vfs_ioctl+0x2f8/0x510
Mar 12 14:13:16 xps13 kernel: [28195.034920]  [<ffffffff811eaafe>] ?
____fput+0xe/0x10
Mar 12 14:13:16 xps13 kernel: [28195.034921]  [<ffffffff8108f86c>] ?
task_work_run+0xbc/0xf0
Mar 12 14:13:16 xps13 kernel: [28195.034923]  [<ffffffff811fca91>]
SyS_ioctl+0x81/0xa0
Mar 12 14:13:16 xps13 kernel: [28195.034924]  [<ffffffff81790e8d>]
system_call_fastpath+0x16/0x1b
Mar 12 14:13:16 xps13 kernel: [28195.034924] ---[ end trace bdccadb1bbef5c5a
]---
Mar 12 14:13:16 xps13 kernel: [28195.034925] ------------[ cut here
]------------

Tons more from fbcon.

Mar 12 14:13:00 xps13 kernel: [28179.942980]  [<ffffffff811fca91>]
SyS_ioctl+0x81/0xa0
Mar 12 14:13:00 xps13 kernel: [28179.942986]  [<ffffffff81790e8d>]
system_call_fastpath+0x16/0x1b
Mar 12 14:13:00 xps13 kernel: [28179.942990] ---[ end trace bdccadb1bbef5c4f
]---
Mar 12 14:13:00 xps13 kernel: [28179.943493] ------------[ cut here
]------------

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20150313/7be8f928/attachment-0001.html>

More information about the intel-gfx-bugs mailing list