------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.38/net/sched/sch_generic.c:256 dev_watchdog+0x2a0/0x2b0()
Hardware name: UL30A               
NETDEV WATCHDOG: eth0 (atl1c): transmit queue 0 timed out
Modules linked in: binfmt_misc rfcomm sco bnep l2cap vboxnetadp vboxnetflt vboxdrv ipt_MASQUERADE xt_CHECKSUM bridge stp kvm_intel kvm xt_tcpudp iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 ip6table_filter ip6_tables xt_DSCP xt_TCPMSS ipt_LOG ipt_REJECT iptable_mangle iptable_filter xt_multiport xt_state xt_limit xt_conntrack nf_conntrack_ftp nf_conntrack ip_tables x_tables deflate zlib_deflate ctr twofish_generic twofish_x86_64 twofish_common camellia serpent blowfish cast5 des_generic cryptd aes_x86_64 aes_generic xcbc rmd160 sha512_generic sha256_generic sha1_generic crypto_null af_key parport_pc ppdev dm_crypt snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event ath9k mac80211 snd_seq ath9k_common ath9k_hw snd_timer joydev snd_seq_device uvcvideo asus_laptop videodev ath v4l2_compat_ioctl32 sparse_keymap btusb psmouse snd lp serio_raw soundcore cfg80211 bluetooth snd_page_alloc parport dm_raid45 xor lzo i915 drm_kms_helper drm ahci atl1c i2c_algo_bit libahci video
Pid: 0, comm: kworker/0:0 Not tainted 2.6.38-8-generic #42-Ubuntu
Call Trace:
 <IRQ>  [<ffffffff81065cef>] ? warn_slowpath_common+0x7f/0xc0
 [<ffffffff81065de6>] ? warn_slowpath_fmt+0x46/0x50
 [<ffffffff814ef450>] ? dev_watchdog+0x2a0/0x2b0
 [<ffffffff81080877>] ? __queue_work+0xf7/0x3d0
 [<ffffffff8108ea88>] ? sched_clock_cpu+0xa8/0x110
 [<ffffffff81080b50>] ? delayed_work_timer_fn+0x0/0x40
 [<ffffffff814ef1b0>] ? dev_watchdog+0x0/0x2b0
 [<ffffffff81074964>] ? call_timer_fn+0x44/0x130
 [<ffffffff814ef1b0>] ? dev_watchdog+0x0/0x2b0
 [<ffffffff81075fb4>] ? run_timer_softirq+0x134/0x280
 [<ffffffff8102c85d>] ? lapic_next_event+0x1d/0x30
 [<ffffffff8106d538>] ? __do_softirq+0xa8/0x1c0
 [<ffffffff810983ef>] ? tick_program_event+0x1f/0x30
 [<ffffffff8100cf1c>] ? call_softirq+0x1c/0x30
 [<ffffffff8100ea45>] ? do_softirq+0x65/0xa0
 [<ffffffff8106d755>] ? irq_exit+0x85/0x90
 [<ffffffff815cafb0>] ? smp_apic_timer_interrupt+0x70/0x9b
 [<ffffffff8100c9d3>] ? apic_timer_interrupt+0x13/0x20
 <EOI>  [<ffffffff813615fa>] ? acpi_idle_enter_bm+0x23f/0x251
 [<ffffffff8100a040>] ? __exit_idle+0x20/0x40
 [<ffffffff8100a26b>] ? cpu_idle+0xab/0xf0
 [<ffffffff815bc743>] ? start_secondary+0xbc/0xbe
---[ end trace 07d8d3336d68bfbf ]---