Public bug reported:
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 syscopyare
a 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
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1598635
Title:
NETDEV WATCHDOG: wwp0s20u4 (cdc_mbim): transmit queue 0 timed out
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