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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

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** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1598635

Title:
  NETDEV WATCHDOG: wwp0s20u4 (cdc_mbim): transmit queue 0 timed out

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Jun 30 11:37:32 raven kernel: [  544.865254] ------------[ cut here ]------------
  Jun 30 11:37:32 raven kernel: [  544.865262] WARNING: CPU: 3 PID: 0 at /build/linux-BvkamA/linux-4.4.0/net/sched/sch_generic.c:306 dev_watchdog+0x237/0x240()
  Jun 30 11:37:32 raven kernel: [  544.865264] NETDEV WATCHDOG: wwp0s20u4 (cdc_mbim): transmit queue 0 timed out
  Jun 30 11:37:32 raven kernel: [  544.865265] Modules linked in: rfcomm bnep nls_iso8859_1 btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common videodev cdc_mbim cdc_wdm arc4 cdc_ncm cdc_acm media usbnet mii intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp iwlmvm mac80211 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic joydev iwlwifi input_leds serio_raw snd_hda_intel intel_pch_thermal snd_hda_codec thinkpad_acpi cfg80211 snd_seq_midi snd_seq_midi_event snd_hda_core nvram snd_hwdep snd_rawmidi lpc_ich snd_pcm rtsx_pci_ms memstick snd_seq mei_me shpchp mei snd_seq_device snd_timer snd soundcore mac_hid kvm_intel kvm irqbypass parport_pc ppdev lp parport autofs4 drbg ansi_cprng algif_skcipher af_alg dm_crypt mmc_block wacom usbhid hid rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul i915 aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect ahci sysimgblt e1000e libahci fb_sys_fops drm rtsx_pci ptp pps_core wmi video fjes
  Jun 30 11:37:32 raven kernel: [  544.865335] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.4.0-28-generic #47-Ubuntu
  Jun 30 11:37:32 raven kernel: [  544.865336] Hardware name: LENOVO 20CKCT01WW/20CKCT01WW, BIOS N11ET34W (1.10 ) 08/20/2015
  Jun 30 11:37:32 raven kernel: [  544.865339]  0000000000000286 a73de0ee261f184c ffff88042dcc3d98 ffffffff813eb1a3
  Jun 30 11:37:32 raven kernel: [  544.865342]  ffff88042dcc3de0 ffffffff81d638a8 ffff88042dcc3dd0 ffffffff81081102
  Jun 30 11:37:32 raven kernel: [  544.865344]  0000000000000000 ffff8804184c3c80 0000000000000003 ffff88040f14b000
  Jun 30 11:37:32 raven kernel: [  544.865347] Call Trace:
  Jun 30 11:37:32 raven kernel: [  544.865348]  <IRQ>  [<ffffffff813eb1a3>] dump_stack+0x63/0x90
  Jun 30 11:37:32 raven kernel: [  544.865356]  [<ffffffff81081102>] warn_slowpath_common+0x82/0xc0
  Jun 30 11:37:32 raven kernel: [  544.865359]  [<ffffffff8108119c>] warn_slowpath_fmt+0x5c/0x80
  Jun 30 11:37:32 raven kernel: [  544.865363]  [<ffffffff81743187>] dev_watchdog+0x237/0x240
  Jun 30 11:37:32 raven kernel: [  544.865366]  [<ffffffff81742f50>] ? qdisc_rcu_free+0x40/0x40
  Jun 30 11:37:32 raven kernel: [  544.865370]  [<ffffffff810ec5e5>] call_timer_fn+0x35/0x120
  Jun 30 11:37:32 raven kernel: [  544.865372]  [<ffffffff81742f50>] ? qdisc_rcu_free+0x40/0x40
  Jun 30 11:37:32 raven kernel: [  544.865375]  [<ffffffff810ecf9a>] run_timer_softirq+0x23a/0x2f0
  Jun 30 11:37:32 raven kernel: [  544.865379]  [<ffffffff81085b51>] __do_softirq+0x101/0x290
  Jun 30 11:37:32 raven kernel: [  544.865381]  [<ffffffff81085e53>] irq_exit+0xa3/0xb0
  Jun 30 11:37:32 raven kernel: [  544.865385]  [<ffffffff8182a162>] smp_apic_timer_interrupt+0x42/0x50
  Jun 30 11:37:32 raven kernel: [  544.865387]  [<ffffffff81828422>] apic_timer_interrupt+0x82/0x90
  Jun 30 11:37:32 raven kernel: [  544.865388]  <EOI>  [<ffffffff816bd7a1>] ? cpuidle_enter_state+0x111/0x2b0
  Jun 30 11:37:32 raven kernel: [  544.865394]  [<ffffffff816bd977>] cpuidle_enter+0x17/0x20
  Jun 30 11:37:32 raven kernel: [  544.865397]  [<ffffffff810c3fe2>] call_cpuidle+0x32/0x60
  Jun 30 11:37:32 raven kernel: [  544.865400]  [<ffffffff816bd953>] ? cpuidle_select+0x13/0x20
  Jun 30 11:37:32 raven kernel: [  544.865403]  [<ffffffff810c42a0>] cpu_startup_entry+0x290/0x350
  Jun 30 11:37:32 raven kernel: [  544.865407]  [<ffffffff81051714>] start_secondary+0x154/0x190
  Jun 30 11:37:32 raven kernel: [  544.865409] ---[ end trace 0ba74276779b458d ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-28-generic 4.4.0-28.47
  ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13
  Uname: Linux 4.4.0-28-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  shevek     2968 F.... pulseaudio
   /dev/snd/controlC1:  shevek     2968 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Sun Jul  3 16:05:21 2016
  HibernationDevice: RESUME=UUID=22fd2208-7557-432d-bbff-95dd97905323
  InstallationDate: Installed on 2015-05-18 (412 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
  MachineType: LENOVO 20CKCT01WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-28-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro noprompt persistent quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-28-generic N/A
   linux-backports-modules-4.4.0-28-generic  N/A
   linux-firmware                            1.157.1
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-06-23 (10 days ago)
  dmi.bios.date: 08/20/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N11ET34W (1.10 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CKCT01WW
  dmi.board.vendor: LENOVO
  dmi.board.version: 0B98417 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN11ET34W(1.10):bd08/20/2015:svnLENOVO:pn20CKCT01WW:pvrThinkPadT550:rvnLENOVO:rn20CKCT01WW:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CKCT01WW
  dmi.product.version: ThinkPad T550
  dmi.sys.vendor: LENOVO

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