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Bug#773905: linux-image-3.18.0-trunk-amd64: Kernel crashes when undocking Thinkpad T440s from Ultradock with MST



Package: src:linux
Version: 3.18-1~exp1
Severity: important

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Dear Maintainer,

I'm using a Thinkpad T440s and an Ultradock, which allows to connect multiple digital screens on a single DisplayPort link using MST. MST is supported since kernel 3.17. Using both different versions of Linux 3.17 and 3.18 (all from the repositories), undocking the laptop results in either a kernel crash when undocking, sometimes when changing the display configuration next time (using xrandr or arandr), and very rarely without a crash, but not recognizing the changes in the connected display set any more. This is very annoying, as forgetting to shutdown the computer before undocking renders the computer unusable with a hard reset of the running system.

I could not find reports of this bug for the kernel, but there's a similar report for xserver-org [1], with different Thinkpad models and docking stations, but MST as a common cause.

I attached a syslog excerpt of the crashing xorg server and kernel. If any further crashdumps, -logs or whatever would be helpful at finding this issue, I will gladly add all information required (and well, I can easily reproduce the issue).

Kind regards from Lake Constance, Germany,
Jens Erat

[1]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=764990


- -- Package-specific info:
** Version:
Linux version 3.18.0-trunk-amd64 (debian-kernel@lists.debian.org) (gcc version 4.9.2 (Debian 4.9.2-4) ) #1 SMP Debian 3.18-1~exp1 (2014-12-11)

** Command line:
BOOT_IMAGE=/vmlinuz-3.18.0-trunk-amd64 root=/dev/mapper/t440s--vg-root ro quiet

** Not tainted

** Kernel log:
[    8.611930] hub 2-3:1.0: 4 ports detected
[    8.784709] usb 2-4: new high-speed USB device number 4 using xhci_hcd
[    8.919493] usb 2-4: New USB device found, idVendor=1199, idProduct=a001
[    8.919494] usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    8.919495] usb 2-4: Product: Sierra Wireless EM7345 4G LTE
[    8.919496] usb 2-4: Manufacturer: Sierra Wireless Inc.
[    8.919497] usb 2-4: SerialNumber: 013937000450138
[    8.996813] usb 2-3.4: new high-speed USB device number 5 using xhci_hcd
[    9.096879] usb 2-3.4: New USB device found, idVendor=17ef, idProduct=100f
[    9.096880] usb 2-3.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    9.096881] usb 2-3.4: Product: Lenovo ThinkPad Dock
[    9.096882] usb 2-3.4: Manufacturer: Lenovo
[    9.096883] usb 2-3.4: SerialNumber: Rev1.2
[    9.097274] hub 2-3.4:1.0: USB hub found
[    9.097330] hub 2-3.4:1.0: 3 ports detected
[    9.128692] Console: switching to colour frame buffer device 240x67
[    9.133529] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[    9.133530] i915 0000:00:02.0: registered panic notifier
[    9.212552] usb 2-6: new full-speed USB device number 6 using xhci_hcd
[    9.341657] usb 2-6: New USB device found, idVendor=138a, idProduct=0017
[    9.341661] usb 2-6: New USB device strings: Mfr=0, Product=0, SerialNumber=1
[    9.341663] usb 2-6: SerialNumber: 72e31aa01f73
[    9.508470] usb 2-7: new full-speed USB device number 7 using xhci_hcd
[    9.637398] usb 2-7: New USB device found, idVendor=8087, idProduct=07dc
[    9.637401] usb 2-7: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    9.804358] usb 2-8: new high-speed USB device number 8 using xhci_hcd
[   10.056729] usb 2-8: New USB device found, idVendor=04f2, idProduct=b39a
[   10.056733] usb 2-8: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[   10.056735] usb 2-8: Product: Integrated Camera
[   10.056737] usb 2-8: Manufacturer: SunplusIT INC.
[   10.135820] media: Linux media interface: v0.10
[   10.138799] hidraw: raw HID events driver (C) Jiri Kosina
[   10.140419] Linux video capture interface: v2.00
[   10.141265] Bluetooth: Core ver 2.19
[   10.141278] NET: Registered protocol family 31
[   10.141279] Bluetooth: HCI device and connection manager initialized
[   10.141285] Bluetooth: HCI socket layer initialized
[   10.141287] Bluetooth: L2CAP socket layer initialized
[   10.141293] Bluetooth: SCO socket layer initialized
[   10.142731] cdc_acm 2-4:1.2: This device cannot do calls on its own. It is not a modem.
[   10.142808] cdc_acm 2-4:1.2: ttyACM0: USB ACM device
[   10.143742] usbcore: registered new interface driver cdc_acm
[   10.143744] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[   10.144490] usbcore: registered new interface driver btusb
[   10.152170] uvcvideo: Found UVC 1.00 device Integrated Camera (04f2:b39a)
[   10.153852] cdc_ncm 2-4:1.0: MAC-Address: 00:00:11:12:13:14
[   10.153855] cdc_ncm 2-4:1.0: setting rx_max = 16384
[   10.154319] usbcore: registered new interface driver usbhid
[   10.154321] usbhid: USB HID core driver
[   10.154712] cdc_ncm 2-4:1.0 usb0: register 'cdc_ncm' at usb-0000:00:14.0-4, CDC NCM, 00:00:11:12:13:14
[   10.154747] usbcore: registered new interface driver cdc_ncm
[   10.156048] usbcore: registered new interface driver cdc_wdm
[   10.156744] usbcore: registered new interface driver cdc_mbim
[   10.156843] Bluetooth: hci0: read Intel version: 370710018002030d00
[   10.157583] bluetooth hci0: firmware: direct-loading firmware intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq
[   10.157585] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq
[   10.158337] logitech-djreceiver 0003:046D:C52B.0003: hiddev0,hidraw0: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:14.0-2/input2
[   10.161065] input: Integrated Camera as /devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8:1.0/input/input18
[   10.161156] usbcore: registered new interface driver uvcvideo
[   10.161157] USB Video Class driver (1.1.1)
[   10.214029] input: Logitech Unifying Device. Wireless PID:400f as /devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.2/0003:046D:C52B.0003/0003:046D:C52B.0004/input/input19
[   10.214182] logitech-djdevice 0003:046D:C52B.0004: input,hidraw1: USB HID v1.11 Keyboard [Logitech Unifying Device. Wireless PID:400f] on usb-0000:00:14.0-2:1
[   10.215955] input: Logitech Unifying Device. Wireless PID:101b as /devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.2/0003:046D:C52B.0003/0003:046D:C52B.0005/input/input20
[   10.216077] logitech-djdevice 0003:046D:C52B.0005: input,hidraw2: USB HID v1.11 Mouse [Logitech Unifying Device. Wireless PID:101b] on usb-0000:00:14.0-2:2
[   10.304772] Bluetooth: hci0: Intel Bluetooth firmware patch completed and activated
[   11.200680] systemd-journald[283]: Received request to flush runtime journal from PID 1
[   11.337709] RPC: Registered named UNIX socket transport module.
[   11.337712] RPC: Registered udp transport module.
[   11.337713] RPC: Registered tcp transport module.
[   11.337713] RPC: Registered tcp NFSv4.1 backchannel transport module.
[   11.340596] FS-Cache: Loaded
[   11.347941] FS-Cache: Netfs 'nfs' registered for caching
[   11.354702] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[   11.517584] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   11.517587] Bluetooth: BNEP filters: protocol multicast
[   11.517593] Bluetooth: BNEP socket layer initialized
[   11.860422] e1000e 0000:00:19.0: irq 42 for MSI/MSI-X
[   11.963540] e1000e 0000:00:19.0: irq 42 for MSI/MSI-X
[   11.966237] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
[   11.966730] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
[   11.990316] cdc_ncm 2-4:1.0 usb0: kevent 12 may have been dropped
[   12.556241] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3
[   12.748610] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/serio2/input/input17
[   15.500664] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[   15.635665] wlan0: authenticate with 9c:c7:a6:8d:74:11
[   15.643245] wlan0: send auth to 9c:c7:a6:8d:74:11 (try 1/3)
[   15.646611] wlan0: authenticated
[   15.650186] wlan0: associate with 9c:c7:a6:8d:74:11 (try 1/3)
[   15.668627] wlan0: RX AssocResp from 9c:c7:a6:8d:74:11 (capab=0x431 status=0 aid=4)
[   15.671105] wlan0: associated
[   15.671759] cfg80211: Calling CRDA for country: DE
[   15.673862] cfg80211: Regulatory domain changed to country: DE
[   15.673865] cfg80211:  DFS Master region: ETSI
[   15.673867] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   15.673869] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   15.673871] cfg80211:   (5150000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   15.673873] cfg80211:   (5250000 KHz - 5350000 KHz @ 80000 KHz), (N/A, 2000 mBm), (0 s)
[   15.673874] cfg80211:   (5470000 KHz - 5725000 KHz @ 80000 KHz), (N/A, 2698 mBm), (0 s)
[   15.673876] cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[   15.898282] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready

** Model information
sys_vendor: LENOVO
product_name: 20ARS0BH00
product_version: ThinkPad T440s
chassis_vendor: LENOVO
chassis_version: Not Available
bios_vendor: LENOVO
bios_version: GJET78WW (2.28 )
board_vendor: LENOVO
board_name: 20ARS0BH00
board_version: Not Defined

** Loaded modules:
ctr
ccm
binfmt_misc
bnep
cpufreq_stats
cpufreq_userspace
cpufreq_powersave
cpufreq_conservative
nfsd
auth_rpcgss
oid_registry
nfs_acl
nfs
lockd
grace
fscache
sunrpc
ecb
cdc_mbim
hid_logitech_dj
cdc_wdm
uvcvideo
videobuf2_vmalloc
videobuf2_memops
btusb
videobuf2_core
cdc_ncm
v4l2_common
usbnet
cdc_acm
usbhid
mii
videodev
bluetooth
hid
media
joydev
ext4
crc16
mbcache
jbd2
snd_hda_codec_hdmi
arc4
iTCO_wdt
iTCO_vendor_support
iwlmvm
x86_pkg_temp_thermal
intel_powerclamp
intel_rapl
coretemp
mac80211
kvm_intel
kvm
evdev
psmouse
pcspkr
serio_raw
snd_hda_codec_realtek
snd_hda_codec_generic
iwlwifi
rtsx_pci_ms
memstick
cfg80211
i915
thinkpad_acpi
snd_hda_intel
wmi
nvram
rfkill
tpm_tis
ac
snd_hda_controller
battery
drm_kms_helper
tpm
snd_hda_codec
drm
snd_hwdep
video
xhci_pci
snd_pcm
xhci_hcd
i2c_i801
i2c_algo_bit
i2c_core
mei_me
snd_timer
mei
snd
lpc_ich
button
soundcore
processor
intel_smartconnect
shpchp
fuse
parport_pc
ppdev
lp
parport
autofs4
btrfs
xor
raid6_pq
algif_skcipher
af_alg
dm_crypt
dm_mod
sg
sd_mod
rtsx_pci_sdmmc
mmc_core
crct10dif_pclmul
crc32_pclmul
crc32c_intel
ghash_clmulni_intel
aesni_intel
aes_x86_64
lrw
gf128mul
glue_helper
ahci
ablk_helper
libahci
cryptd
rtsx_pci
mfd_core
ehci_pci
libata
ehci_hcd
scsi_mod
e1000e
usbcore
thermal
ptp
usb_common
pps_core
thermal_sys

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller [8086:0a04] (rev 0b)
	Subsystem: Lenovo Device [17aa:220c]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>

00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
	Subsystem: Lenovo Device [17aa:220c]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 49
	Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
	Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at 3000 [size=64]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: <access denied>
	Kernel driver in use: i915

00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller [8086:0a0c] (rev 0b)
	Subsystem: Lenovo Device [17aa:220c]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 50
	Region 0: Memory at f0630000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel

00:14.0 USB controller [0c03]: Intel Corporation 8 Series USB xHCI HC [8086:9c31] (rev 04) (prog-if 30 [XHCI])
	Subsystem: Lenovo Device [17aa:220c]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 46
	Region 0: Memory at f0620000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd

00:16.0 Communication controller [0780]: Intel Corporation 8 Series HECI #0 [8086:9c3a] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 45
	Region 0: Memory at f0639000 (64-bit, non-prefetchable) [size=32]
	Capabilities: <access denied>
	Kernel driver in use: mei_me

00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection I218-LM [8086:155a] (rev 04)
	Subsystem: Lenovo ThinkPad X240 [17aa:2214]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 42
	Region 0: Memory at f0600000 (32-bit, non-prefetchable) [size=128K]
	Region 1: Memory at f063e000 (32-bit, non-prefetchable) [size=4K]
	Region 2: I/O ports at 3080 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: e1000e

00:1b.0 Audio device [0403]: Intel Corporation 8 Series HD Audio Controller [8086:9c20] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 47
	Region 0: Memory at f0634000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 6 [8086:9c1a] (rev e4) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	Memory behind bridge: f0500000-f05fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.1 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 3 [8086:9c14] (rev e4) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	Memory behind bridge: f0400000-f04fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1d.0 USB controller [0c03]: Intel Corporation 8 Series USB EHCI #1 [8086:9c26] (rev 04) (prog-if 20 [EHCI])
	Subsystem: Lenovo Device [17aa:220c]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 23
	Region 0: Memory at f063d000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci

00:1f.0 ISA bridge [0601]: Intel Corporation 8 Series LPC Controller [8086:9c43] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>
	Kernel driver in use: lpc_ich

00:1f.2 SATA controller [0106]: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] [8086:9c03] (rev 04) (prog-if 01 [AHCI 1.0])
	Subsystem: Lenovo Device [17aa:220c]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 44
	Region 0: I/O ports at 30a8 [size=8]
	Region 1: I/O ports at 30b4 [size=4]
	Region 2: I/O ports at 30a0 [size=8]
	Region 3: I/O ports at 30b0 [size=4]
	Region 4: I/O ports at 3060 [size=32]
	Region 5: Memory at f063c000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 8 Series SMBus Controller [8086:9c22] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin C routed to IRQ 18
	Region 0: Memory at f0638000 (64-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at efa0 [size=32]
	Kernel driver in use: i801_smbus

02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader [10ec:5227] (rev 01)
	Subsystem: Lenovo Device [17aa:220c]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 43
	Region 0: Memory at f0500000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: rtsx_pci

03:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b2] (rev 83)
	Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:c270]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 48
	Region 0: Memory at f0400000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi


** USB devices:
Bus 001 Device 003: ID 058f:9540 Alcor Micro Corp. 
Bus 001 Device 002: ID 8087:8000 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 17ef:1010 Lenovo 
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 008: ID 04f2:b39a Chicony Electronics Co., Ltd 
Bus 002 Device 007: ID 8087:07dc Intel Corp. 
Bus 002 Device 006: ID 138a:0017 Validity Sensors, Inc. 
Bus 002 Device 004: ID 1199:a001 Sierra Wireless, Inc. 
Bus 002 Device 005: ID 17ef:100f Lenovo 
Bus 002 Device 003: ID 17ef:1010 Lenovo 
Bus 002 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


- -- System Information:
Debian Release: 8.0
  APT prefers testing
  APT policy: (1000, 'testing'), (750, 'testing'), (500, 'testing-updates'), (50, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.18.0-trunk-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages linux-image-3.18.0-trunk-amd64 depends on:
ii  debconf [debconf-2.0]                   1.5.55
ii  initramfs-tools [linux-initramfs-tool]  0.116
ii  kmod                                    18-3
ii  linux-base                              3.5

Versions of packages linux-image-3.18.0-trunk-amd64 recommends:
ii  firmware-linux-free  3.3
ii  irqbalance           1.0.6-3

Versions of packages linux-image-3.18.0-trunk-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  grub-pc                 2.02~beta2-18
pn  linux-doc-3.18          <none>

Versions of packages linux-image-3.18.0-trunk-amd64 is related to:
pn  firmware-atheros        <none>
pn  firmware-bnx2           <none>
pn  firmware-bnx2x          <none>
pn  firmware-brcm80211      <none>
pn  firmware-intelwimax     <none>
pn  firmware-ipw2x00        <none>
pn  firmware-ivtv           <none>
ii  firmware-iwlwifi        0.43
pn  firmware-libertas       <none>
pn  firmware-linux          <none>
pn  firmware-linux-nonfree  <none>
pn  firmware-myricom        <none>
pn  firmware-netxen         <none>
pn  firmware-qlogic         <none>
pn  firmware-ralink         <none>
pn  firmware-realtek        <none>
pn  xen-hypervisor          <none>

- -- debconf information:
  linux-image-3.18.0-trunk-amd64/postinst/depmod-error-initrd-3.18.0-trunk-amd64: false
  linux-image-3.18.0-trunk-amd64/postinst/mips-initrd-3.18.0-trunk-amd64:
  linux-image-3.18.0-trunk-amd64/prerm/removing-running-kernel-3.18.0-trunk-amd64: true

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Dec 25 12:13:00 t440s gdm-Xorg-:0[1124]: (II) intel(0): EDID vendor "LGD", prod id 1034
Dec 25 12:13:00 t440s gdm-Xorg-:0[1124]: (II) intel(0): Printing DDC gathered Modelines:
Dec 25 12:13:00 t440s gdm-Xorg-:0[1124]: (II) intel(0): Modeline "1920x1080"x0.0  140.10  1920 1980 2016 2092  1080 1083 1088 1116 +hsync -vsync (67.0 kHz eP)
Dec 25 12:13:00 t440s gdm-Xorg-:0[1124]: (EE) intel(0): drmModeGetConnector failed, reporting output disconnected
Dec 25 12:13:00 t440s gdm-Xorg-:0[1124]: (EE) intel(0): drmModeGetConnector failed, reporting output disconnected
Dec 25 12:13:00 t440s gdm-Xorg-:0[1124]: (EE) intel(0): drmModeGetConnector failed, reporting output disconnected
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE)
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) Backtrace:
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 0: /usr/bin/Xorg (xorg_backtrace+0x56) [0x7f5124873a76]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 1: /usr/bin/Xorg (0x7f51246bd000+0x1bac59) [0x7f5124877c59]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7f51223b2000+0x35180) [0x7f51223e7180]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 3: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f511e7bd000+0xf2108) [0x7f511e8af108]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 4: /usr/bin/Xorg (xf86DisableUnusedFunctions+0x12c) [0x7f512478bf8c]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 5: /usr/bin/Xorg (0x7f51246bd000+0xd8a99) [0x7f5124795a99]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 6: /usr/bin/Xorg (RRCrtcSet+0x29d) [0x7f51247d6c2d]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 7: /usr/bin/Xorg (ProcRRSetCrtcConfig+0x394) [0x7f51247d80b4]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 8: /usr/bin/Xorg (0x7f51246bd000+0x570c7) [0x7f51247140c7]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 9: /usr/bin/Xorg (0x7f51246bd000+0x5b266) [0x7f5124718266]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5) [0x7f51223d3b45]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) 11: /usr/bin/Xorg (0x7f51246bd000+0x455ee) [0x7f51247025ee]
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE)
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) Segmentation fault at address 0x30
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE)
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: Fatal server error:
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) Caught signal 11 (Segmentation fault). Server aborting
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE)
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE)
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: Please consult the The X.Org Foundation support
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: at http://wiki.x.org
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: for help.
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (EE)
Dec 25 12:13:01 t440s gdm-Xorg-:0[1124]: (II) AIGLX: Suspending AIGLX clients for VT switch
Dec 25 12:13:01 t440s kernel: [  535.991811] general protection fault: 0000 [#1] SMP 
Dec 25 12:13:01 t440s kernel: [  535.991834] Modules linked in: ctr ccm binfmt_misc bnep cpufreq_stats cpufreq_userspace cpufreq_powersave cpufreq_conservative nfsd auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc ecb cdc_mbim hid_logitech_dj cdc_wdm uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common btusb cdc_ncm usbhid videodev usbnet bluetooth hid media mii cdc_acm joydev arc4 snd_hda_codec_hdmi ext4 crc16 mbcache jbd2 iTCO_wdt iTCO_vendor_support iwlmvm x86_pkg_temp_thermal intel_powerclamp mac80211 intel_rapl coretemp kvm_intel kvm snd_hda_codec_realtek evdev snd_hda_codec_generic psmouse serio_raw pcspkr iwlwifi rtsx_pci_ms memstick cfg80211 i915 thinkpad_acpi nvram rfkill tpm_tis snd_hda_intel snd_hda_controller tpm snd_hda_codec ac wmi xhci_pci drm_kms_helper battery video xhci_hcd snd_hwdep drm snd_pcm i2c_i801 i2c_algo_bit mei_me button snd_timer lpc_ich mei snd i2c_core soundcore shpchp processor intel_smartconnect fuse parport_pc ppdev l
 p parport autofs4 btrfs xor raid6_pq algif_skcipher af_alg dm_crypt dm_mod sg sd_mod rtsx_pci_sdmmc mmc_core crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd rtsx_pci mfd_core ahci libahci libata ehci_pci ehci_hcd scsi_mod usbcore e1000e usb_common ptp thermal pps_core thermal_sys
Dec 25 12:13:01 t440s kernel: [  535.991853] CPU: 0 PID: 1124 Comm: Xorg Not tainted 3.18.0-trunk-amd64 #1 Debian 3.18-1~exp1
Dec 25 12:13:01 t440s kernel: [  535.991854] Hardware name: LENOVO 20ARS0BH00/20ARS0BH00, BIOS GJET78WW (2.28 ) 07/29/2014
Dec 25 12:13:01 t440s kernel: [  535.991855] task: ffff88030b676980 ti: ffff88030b448000 task.ti: ffff88030b448000
Dec 25 12:13:01 t440s kernel: [  535.991871] RIP: 0010:[<ffffffffa0575e7b>]  [<ffffffffa0575e7b>] intel_crtc_set_config+0x22b/0xe60 [i915]
Dec 25 12:13:01 t440s kernel: [  535.991872] RSP: 0018:ffff88030b44ba48  EFLAGS: 00010206
Dec 25 12:13:01 t440s kernel: [  535.991873] RAX: 344c5f5f0008000f RBX: ffff8800c9160d80 RCX: ffff8800c8e40400
Dec 25 12:13:01 t440s kernel: [  535.991873] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88030e9f04a0
Dec 25 12:13:01 t440s kernel: [  535.991874] RBP: ffff88030e937b08 R08: ffff88030bde0000 R09: ffff88030e937b68
Dec 25 12:13:01 t440s kernel: [  535.991875] R10: 0000000000003068 R11: 0000000000000dd3 R12: ffff88030e05b7f8
Dec 25 12:13:01 t440s kernel: [  535.991875] R13: ffff88030e937b38 R14: ffff88030e937800 R15: 0000000000000080
Dec 25 12:13:01 t440s kernel: [  535.991876] FS:  00007f512468a980(0000) GS:ffff88031e200000(0000) knlGS:0000000000000000
Dec 25 12:13:01 t440s kernel: [  535.991877] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 25 12:13:01 t440s kernel: [  535.991878] CR2: 00007f77db01e058 CR3: 000000030f3a0000 CR4: 00000000001407f0
Dec 25 12:13:01 t440s kernel: [  535.991878] Stack:
Dec 25 12:13:01 t440s kernel: [  535.991880]  0000000000000000 ffff8800c9e8f000 ffff88030bde0000 0000000000000000
Dec 25 12:13:01 t440s kernel: [  535.991881]  0000000000000780 ffff88030e937b68 ffff88030e937b68 ffff88030e05b7c0
Dec 25 12:13:01 t440s kernel: [  535.991882]  ffff8800bd1fa900 ffff88030c7da640 0000000000000001 ffff88030bde0000
Dec 25 12:13:01 t440s kernel: [  535.991882] Call Trace:
Dec 25 12:13:01 t440s kernel: [  535.991892]  [<ffffffffa03fc321>] ? drm_mode_set_config_internal+0x61/0xf0 [drm]
Dec 25 12:13:01 t440s kernel: [  535.991897]  [<ffffffffa0470efc>] ? restore_fbdev_mode+0xcc/0xf0 [drm_kms_helper]
Dec 25 12:13:01 t440s kernel: [  535.991901]  [<ffffffffa0470f42>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x22/0x40 [drm_kms_helper]
Dec 25 12:13:01 t440s kernel: [  535.991905]  [<ffffffffa0472986>] ? drm_fb_helper_set_par+0x26/0x70 [drm_kms_helper]
Dec 25 12:13:01 t440s kernel: [  535.991914]  [<ffffffffa0581226>] ? intel_fbdev_set_par+0x16/0x60 [i915]
Dec 25 12:13:01 t440s kernel: [  535.991917]  [<ffffffff8143a137>] ? __alloc_skb+0x47/0x1e0
Dec 25 12:13:01 t440s kernel: [  535.991919]  [<ffffffff8132f96e>] ? fb_set_var+0x15e/0x3a0
Dec 25 12:13:01 t440s kernel: [  535.991932]  [<ffffffffa0255781>] ? btrfs_set_bit_hook+0xb1/0x240 [btrfs]
Dec 25 12:13:01 t440s kernel: [  535.991936]  [<ffffffff81326963>] ? fbcon_blank+0x223/0x2e0
Dec 25 12:13:01 t440s kernel: [  535.991939]  [<ffffffff8139cf77>] ? do_unblank_screen+0xb7/0x1f0
Dec 25 12:13:01 t440s kernel: [  535.991942]  [<ffffffff81393808>] ? vt_ioctl+0x698/0x1360
Dec 25 12:13:01 t440s kernel: [  535.991945]  [<ffffffff811f74f7>] ? fsnotify+0x3d7/0x590
Dec 25 12:13:01 t440s kernel: [  535.991948]  [<ffffffff81387e34>] ? tty_ioctl+0x274/0xb80
Dec 25 12:13:01 t440s kernel: [  535.991951]  [<ffffffff8105aa40>] ? __do_page_fault+0x260/0x530
Dec 25 12:13:01 t440s kernel: [  535.991953]  [<ffffffff811d11b1>] ? dput+0x21/0x1a0
Dec 25 12:13:01 t440s kernel: [  535.991956]  [<ffffffff811cdb90>] ? do_vfs_ioctl+0x2d0/0x4a0
Dec 25 12:13:01 t440s kernel: [  535.991958]  [<ffffffff810859cc>] ? task_work_run+0xbc/0xf0
Dec 25 12:13:01 t440s kernel: [  535.991960]  [<ffffffff811cdde1>] ? SyS_ioctl+0x81/0xa0
Dec 25 12:13:01 t440s kernel: [  535.991963]  [<ffffffff81545d28>] ? page_fault+0x28/0x30
Dec 25 12:13:01 t440s kernel: [  535.991965]  [<ffffffff81543d2d>] ? system_call_fast_compare_end+0xc/0x11
Dec 25 12:13:01 t440s kernel: [  535.991976] Code: 8b 44 24 10 48 85 ff 75 12 e9 59 0a 00 00 66 90 83 c2 01 48 63 c2 48 39 c6 76 35 48 8b 0c c7 48 8b 81 48 02 00 00 48 85 c0 74 e5 <4c> 3b 40 40 75 df 8b 81 0c 02 00 00 85 c0 75 42 83 c2 01 48 63 
Dec 25 12:13:01 t440s kernel: [  535.991985] RIP  [<ffffffffa0575e7b>] intel_crtc_set_config+0x22b/0xe60 [i915]
Dec 25 12:13:01 t440s kernel: [  535.991986]  RSP <ffff88030b44ba48>
Dec 25 12:13:01 t440s kernel: [  535.991988] ---[ end trace a82f8db5b64e3be4 ]---

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