Same issue here, but this time with my wireless 3G module Ericsson F5521gw on Lenovo Thinkpad X220 (4290RW1):
Syslog: Feb 22 13:56:07 thinkpad kernel: [12846.261594] ------------[ cut here ]------------ Feb 22 13:56:07 thinkpad kernel: [12846.261615] WARNING: at /build/buildd/linux-3.0.0/net/sched/sch_generic.c:255 dev_watchdog+0x25a/0x270() Feb 22 13:56:07 thinkpad kernel: [12846.261620] Hardware name: 4290RW1 Feb 22 13:56:07 thinkpad kernel: [12846.261625] NETDEV WATCHDOG: usb0 (cdc_ncm): transmit queue 0 timed out Feb 22 13:56:07 thinkpad kernel: [12846.261629] Modules linked in: usb_storage uas hidp hid bnep rfcomm pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv parport_pc ppdev binfmt_misc btusb bluetooth dm_crypt snd_hda_codec_hdmi snd_hda_codec_conexant uvcvideo videodev v4l2_compat_ioctl32 cdc_ncm cdc_wdm usbnet cdc_acm thinkpad_acpi snd_seq_midi snd_rawmidi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi_event snd_seq psmouse serio_raw snd_timer snd_seq_device snd nvram soundcore snd_page_alloc sdhci_pci sdhci mei(C) lp parport i915 drm_kms_helper drm wmi i2c_algo_bit video ahci libahci xhci_hcd Feb 22 13:56:07 thinkpad kernel: [12846.261716] Pid: 0, comm: kworker/0:1 Tainted: G C 3.0.0-16-generic #28-Ubuntu Feb 22 13:56:07 thinkpad kernel: [12846.261718] Call Trace: Feb 22 13:56:07 thinkpad kernel: [12846.261719] <IRQ> [<ffffffff8105e8cf>] warn_slowpath_common+0x7f/0xc0 Feb 22 13:56:07 thinkpad kernel: [12846.261725] [<ffffffff8105e9c6>] warn_slowpath_fmt+0x46/0x50 Feb 22 13:56:07 thinkpad kernel: [12846.261727] [<ffffffff8106fbb3>] ? mod_timer+0x143/0x2f0 Feb 22 13:56:07 thinkpad kernel: [12846.261730] [<ffffffff814fee4a>] dev_watchdog+0x25a/0x270 Feb 22 13:56:07 thinkpad kernel: [12846.261732] [<ffffffff81128ff0>] ? bdi_arm_supers_timer+0x50/0x50 Feb 22 13:56:07 thinkpad kernel: [12846.261734] [<ffffffff814febf0>] ? qdisc_reset+0x50/0x50 Feb 22 13:56:07 thinkpad kernel: [12846.261736] [<ffffffff814febf0>] ? qdisc_reset+0x50/0x50 Feb 22 13:56:07 thinkpad kernel: [12846.261739] [<ffffffff8106d706>] call_timer_fn+0x46/0x160 Feb 22 13:56:07 thinkpad kernel: [12846.261743] [<ffffffff812ef9dd>] ? rb_insert_color+0xad/0x150 Feb 22 13:56:07 thinkpad kernel: [12846.261745] [<ffffffff814febf0>] ? qdisc_reset+0x50/0x50 Feb 22 13:56:07 thinkpad kernel: [12846.261746] [<ffffffff8106f032>] run_timer_softirq+0x132/0x2a0 Feb 22 13:56:07 thinkpad kernel: [12846.261749] [<ffffffff810270cd>] ? lapic_next_event+0x1d/0x30 Feb 22 13:56:07 thinkpad kernel: [12846.261751] [<ffffffff810660c8>] __do_softirq+0xa8/0x210 Feb 22 13:56:07 thinkpad kernel: [12846.261753] [<ffffffff810939ff>] ? tick_program_event+0x1f/0x30 Feb 22 13:56:07 thinkpad kernel: [12846.261756] [<ffffffff815fbcdc>] call_softirq+0x1c/0x30 Feb 22 13:56:07 thinkpad kernel: [12846.261759] [<ffffffff8100c2d5>] do_softirq+0x65/0xa0 Feb 22 13:56:07 thinkpad kernel: [12846.261760] [<ffffffff810664ae>] irq_exit+0x8e/0xb0 Feb 22 13:56:07 thinkpad kernel: [12846.261762] [<ffffffff815fc61e>] smp_apic_timer_interrupt+0x6e/0x99 Feb 22 13:56:07 thinkpad kernel: [12846.261764] [<ffffffff815fb493>] apic_timer_interrupt+0x13/0x20 Feb 22 13:56:07 thinkpad kernel: [12846.261765] <EOI> [<ffffffff81032a79>] ? default_spin_lock_flags+0x9/0x10 Feb 22 13:56:07 thinkpad kernel: [12846.261769] [<ffffffff8134aceb>] ? intel_idle+0xcb/0x120 Feb 22 13:56:07 thinkpad kernel: [12846.261771] [<ffffffff8134accd>] ? intel_idle+0xad/0x120 Feb 22 13:56:07 thinkpad kernel: [12846.261774] [<ffffffff814b31cd>] cpuidle_idle_call+0x9d/0x280 Feb 22 13:56:07 thinkpad kernel: [12846.261777] [<ffffffff8100920b>] cpu_idle+0xab/0x100 Feb 22 13:56:07 thinkpad kernel: [12846.261780] [<ffffffff815d4c00>] start_secondary+0xd9/0xdb Feb 22 13:56:07 thinkpad kernel: [12846.261781] ---[ end trace 034dd388a49b2ea6 ]---
Same issue here, but this time with my wireless 3G module Ericsson F5521gw on Lenovo Thinkpad X220 (4290RW1):
Syslog: buildd/ linux-3. 0.0/net/ sched/sch_ generic. c:255 dev_watchdog+ 0x25a/0x270( ) codec_conexant uvcvideo videodev v4l2_compat_ioctl32 cdc_ncm cdc_wdm usbnet cdc_acm thinkpad_acpi snd_seq_midi snd_rawmidi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi_event snd_seq psmouse serio_raw snd_timer snd_seq_device snd nvram soundcore snd_page_alloc sdhci_pci sdhci mei(C) lp parport i915 drm_kms_helper drm wmi i2c_algo_bit video ahci libahci xhci_hcd 8cf>] warn_slowpath_ common+ 0x7f/0xc0 9c6>] warn_slowpath_ fmt+0x46/ 0x50 bb3>] ? mod_timer+ 0x143/0x2f0 e4a>] dev_watchdog+ 0x25a/0x270 ff0>] ? bdi_arm_ supers_ timer+0x50/ 0x50 bf0>] ? qdisc_reset+ 0x50/0x50 bf0>] ? qdisc_reset+ 0x50/0x50 706>] call_timer_ fn+0x46/ 0x160 9dd>] ? rb_insert_ color+0xad/ 0x150 bf0>] ? qdisc_reset+ 0x50/0x50 032>] run_timer_ softirq+ 0x132/0x2a0 0cd>] ? lapic_next_ event+0x1d/ 0x30 0c8>] __do_softirq+ 0xa8/0x210 9ff>] ? tick_program_ event+0x1f/ 0x30 cdc>] call_softirq+ 0x1c/0x30 2d5>] do_softirq+ 0x65/0xa0 4ae>] irq_exit+0x8e/0xb0 61e>] smp_apic_ timer_interrupt +0x6e/0x99 493>] apic_timer_ interrupt+ 0x13/0x20 a79>] ? default_ spin_lock_ flags+0x9/ 0x10 ceb>] ? intel_idle+ 0xcb/0x120 ccd>] ? intel_idle+ 0xad/0x120 1cd>] cpuidle_ idle_call+ 0x9d/0x280 20b>] cpu_idle+0xab/0x100 c00>] start_secondary +0xd9/0xdb
Feb 22 13:56:07 thinkpad kernel: [12846.261594] ------------[ cut here ]------------
Feb 22 13:56:07 thinkpad kernel: [12846.261615] WARNING: at /build/
Feb 22 13:56:07 thinkpad kernel: [12846.261620] Hardware name: 4290RW1
Feb 22 13:56:07 thinkpad kernel: [12846.261625] NETDEV WATCHDOG: usb0 (cdc_ncm): transmit queue 0 timed out
Feb 22 13:56:07 thinkpad kernel: [12846.261629] Modules linked in: usb_storage uas hidp hid bnep rfcomm pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv parport_pc ppdev binfmt_misc btusb bluetooth dm_crypt snd_hda_codec_hdmi snd_hda_
Feb 22 13:56:07 thinkpad kernel: [12846.261716] Pid: 0, comm: kworker/0:1 Tainted: G C 3.0.0-16-generic #28-Ubuntu
Feb 22 13:56:07 thinkpad kernel: [12846.261718] Call Trace:
Feb 22 13:56:07 thinkpad kernel: [12846.261719] <IRQ> [<ffffffff8105e
Feb 22 13:56:07 thinkpad kernel: [12846.261725] [<ffffffff8105e
Feb 22 13:56:07 thinkpad kernel: [12846.261727] [<ffffffff8106f
Feb 22 13:56:07 thinkpad kernel: [12846.261730] [<ffffffff814fe
Feb 22 13:56:07 thinkpad kernel: [12846.261732] [<ffffffff81128
Feb 22 13:56:07 thinkpad kernel: [12846.261734] [<ffffffff814fe
Feb 22 13:56:07 thinkpad kernel: [12846.261736] [<ffffffff814fe
Feb 22 13:56:07 thinkpad kernel: [12846.261739] [<ffffffff8106d
Feb 22 13:56:07 thinkpad kernel: [12846.261743] [<ffffffff812ef
Feb 22 13:56:07 thinkpad kernel: [12846.261745] [<ffffffff814fe
Feb 22 13:56:07 thinkpad kernel: [12846.261746] [<ffffffff8106f
Feb 22 13:56:07 thinkpad kernel: [12846.261749] [<ffffffff81027
Feb 22 13:56:07 thinkpad kernel: [12846.261751] [<ffffffff81066
Feb 22 13:56:07 thinkpad kernel: [12846.261753] [<ffffffff81093
Feb 22 13:56:07 thinkpad kernel: [12846.261756] [<ffffffff815fb
Feb 22 13:56:07 thinkpad kernel: [12846.261759] [<ffffffff8100c
Feb 22 13:56:07 thinkpad kernel: [12846.261760] [<ffffffff81066
Feb 22 13:56:07 thinkpad kernel: [12846.261762] [<ffffffff815fc
Feb 22 13:56:07 thinkpad kernel: [12846.261764] [<ffffffff815fb
Feb 22 13:56:07 thinkpad kernel: [12846.261765] <EOI> [<ffffffff81032
Feb 22 13:56:07 thinkpad kernel: [12846.261769] [<ffffffff8134a
Feb 22 13:56:07 thinkpad kernel: [12846.261771] [<ffffffff8134a
Feb 22 13:56:07 thinkpad kernel: [12846.261774] [<ffffffff814b3
Feb 22 13:56:07 thinkpad kernel: [12846.261777] [<ffffffff81009
Feb 22 13:56:07 thinkpad kernel: [12846.261780] [<ffffffff815d4
Feb 22 13:56:07 thinkpad kernel: [12846.261781] ---[ end trace 034dd388a49b2ea6 ]---