Public bug reported:
Kernel module crash:
[ 3537.262585] WARNING: CPU: 2 PID: 0 at
/build/linux-dcxD3m/linux-4.4.0/net/sched/sch_generic.c:306
dev_watchdog+0x237/0x240()
[ 3537.262596] NETDEV WATCHDOG: wwp0s29u1u4 (qmi_wwan): transmit queue 0 timed
out
[ 3537.262605] Modules linked in: hid_generic hidp hid rfcomm qmi_wwan cdc_wdm
usbnet mii bnep intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm qcserial usb_wwan usbserial irqbypass crct10dif_pclmul
crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd
uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core
v4l2_common videodev media joydev btusb btrtl btbcm btintel input_leds
bluetooth serio_raw arc4 snd_hda_codec_hdmi iwldvm mac80211
snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel snd_hda_codec
iwlwifi snd_hda_core snd_hwdep cfg80211 snd_pcm lpc_ich shpchp snd_seq_midi
snd_seq_midi_event snd_rawmidi thinkpad_acpi snd_seq nvram snd_seq_device
snd_timer snd soundcore mac_hid mei_me mei parport_pc ppdev lp parport autofs4
overlay
[ 3537.262752] nls_utf8 isofs nls_iso8859_1 jfs xfs libcrc32c reiserfs
dm_mirror dm_region_hash dm_log i915 i2c_algo_bit drm_kms_helper psmouse
syscopyarea sysfillrect sysimgblt e1000e fb_sys_fops sdhci_pci sdhci drm ahci
ptp libahci pps_core wmi fjes video
[ 3537.262820] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.4.0-31-generic
#50-Ubuntu
[ 3537.262829] Hardware name: LENOVO 4291PR5/4291PR5, BIOS 8DET70WW (1.40 )
05/14/2015
[ 3537.262836] 0000000000000286 a2df4eaadf32735b ffff88041e283d98
ffffffff813f1143
[ 3537.262846] ffff88041e283de0 ffffffff81d66c78 ffff88041e283dd0
ffffffff81081102
[ 3537.262860] 0000000000000000 ffff8804062b5680 0000000000000002
ffff880405b32000
[ 3537.262868] Call Trace:
[ 3537.262874] <IRQ> [<ffffffff813f1143>] dump_stack+0x63/0x90
[ 3537.262903] [<ffffffff81081102>] warn_slowpath_common+0x82/0xc0
[ 3537.262915] [<ffffffff8108119c>] warn_slowpath_fmt+0x5c/0x80
[ 3537.262929] [<ffffffff817495f7>] dev_watchdog+0x237/0x240
[ 3537.262944] [<ffffffff817493c0>] ? qdisc_rcu_free+0x40/0x40
[ 3537.262958] [<ffffffff810ec5e5>] call_timer_fn+0x35/0x120
[ 3537.262968] [<ffffffff817493c0>] ? qdisc_rcu_free+0x40/0x40
[ 3537.262980] [<ffffffff810ecf9a>] run_timer_softirq+0x23a/0x2f0
[ 3537.262992] [<ffffffff81085b51>] __do_softirq+0x101/0x290
[ 3537.263003] [<ffffffff81085e53>] irq_exit+0xa3/0xb0
[ 3537.263018] [<ffffffff818305e2>] smp_apic_timer_interrupt+0x42/0x50
[ 3537.263027] [<ffffffff8182e8a2>] apic_timer_interrupt+0x82/0x90
[ 3537.263031] <EOI> [<ffffffff816c3c0e>] ? cpuidle_enter_state+0x10e/0x2b0
[ 3537.263052] [<ffffffff816c3de7>] cpuidle_enter+0x17/0x20
[ 3537.263063] [<ffffffff810c3fe2>] call_cpuidle+0x32/0x60
[ 3537.263072] [<ffffffff816c3dc3>] ? cpuidle_select+0x13/0x20
[ 3537.263081] [<ffffffff810c42a0>] cpu_startup_entry+0x290/0x350
[ 3537.263093] [<ffffffff81051714>] start_secondary+0x
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-31-generic 4.4.0-31.50
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: marcin 6656 F.... pulseaudio
CasperVersion: 1.376
CurrentDesktop: XFCE
Date: Tue Jul 26 19:22:31 2016
LiveMediaBuild: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: LENOVO 4291PR5
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/Ubuntu/16.04x/desktop-amd64/casper/vmlinuz.efi
append noprompt boot=casper nohibernate keyboard-configuration-layoutcode=pl
console-setup/layoutcode=pl userfullname=User Name username=username
hostname=hostname nfsroot=usb showmounts
persistent-path=/Ubuntu/16.04x/desktop-amd64 persistent
iso-scan/filename=/Ubuntu/16.04x/xubuntu-16.04.1-desktop-amd64.iso
RelatedPackageVersions:
linux-restricted-modules-4.4.0-31-generic N/A
linux-backports-modules-4.4.0-31-generic N/A
linux-firmware 1.157.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/14/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: 8DET70WW (1.40 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4291PR5
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr8DET70WW(1.40):bd05/14/2015:svnLENOVO:pn4291PR5:pvrThinkPadX220:rvnLENOVO:rn4291PR5:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4291PR5
dmi.product.version: ThinkPad X220
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1606642
Title:
NETDEV WATCHDOG: transmit queue 0 timed out
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