This bug affects me also. This used to take effect, when I have huge traffic.
The log: Jun 21 13:02:05 picimaci-laptop kernel: [21553.040063] WARNING: at /build/buildd/linux-2.6.32/net/sched/sch_generic.c:261 dev_watchdog+0x262/0x270() Jun 21 13:02:05 picimaci-laptop kernel: [21553.040068] Hardware name: F5SL Jun 21 13:02:05 picimaci-laptop kernel: [21553.040073] NETDEV WATCHDOG: eth0 (sis190): transmit queue 0 timed out Jun 21 13:02:05 picimaci-laptop kernel: [21553.040077] Modules linked in: binfmt_misc ppdev vboxnetadp vboxnetflt vboxdrv snd_hda_codec_si3054 snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm arc4 snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer fbcon ath5k snd_seq_device tileblit mac80211 font joydev sis190 snd bitblit ath fglrx(P) soundcore softcursor mii sis_agp snd_page_alloc cfg80211 vga16fb uvcvideo vgastate videodev psmouse usbhid vhba v4l1_compat serio_raw hid v4l2_compat_ioctl32 video output asus_laptop led_class lp parport tcp_illinois jfs usb_storage sata_sis Jun 21 13:02:05 picimaci-laptop kernel: [21553.040176] Pid: 0, comm: swapper Tainted: P 2.6.32-22-generic #36-Ubuntu Jun 21 13:02:05 picimaci-laptop kernel: [21553.040181] Call Trace: Jun 21 13:02:05 picimaci-laptop kernel: [21553.040185] <IRQ> [<ffffffff81066d0b>] warn_slowpath_common+0x7b/0xc0 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040203] [<ffffffff81066db1>] warn_slowpath_fmt+0x41/0x50 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040210] [<ffffffff81476612>] dev_watchdog+0x262/0x270 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040220] [<ffffffff81094378>] ? tick_dev_program_event+0x68/0xd0 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040229] [<ffffffff810397a9>] ? default_spin_lock_flags+0x9/0x10 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040238] [<ffffffff81540cfe>] ? _spin_lock+0xe/0x20 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040244] [<ffffffff814763b0>] ? dev_watchdog+0x0/0x270 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040252] [<ffffffff81077697>] run_timer_softirq+0x197/0x340 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040259] [<ffffffff81094378>] ? tick_dev_program_event+0x68/0xd0 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040267] [<ffffffff8106e3a7>] __do_softirq+0xb7/0x1e0 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040274] [<ffffffff810c4de0>] ? handle_IRQ_event+0x60/0x170 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040282] [<ffffffff810142ec>] call_softirq+0x1c/0x30 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040288] [<ffffffff81015cb5>] do_softirq+0x65/0xa0 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040293] [<ffffffff8106e245>] irq_exit+0x85/0x90 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040300] [<ffffffff81545ed5>] do_IRQ+0x75/0xf0 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040306] [<ffffffff81013b13>] ret_from_intr+0x0/0x11 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040309] <EOI> [<ffffffff8130d492>] ? acpi_idle_enter_simple+0x117/0x14b Jun 21 13:02:05 picimaci-laptop kernel: [21553.040324] [<ffffffff8130d48b>] ? acpi_idle_enter_simple+0x110/0x14b Jun 21 13:02:05 picimaci-laptop kernel: [21553.040333] [<ffffffff81437537>] ? cpuidle_idle_call+0xa7/0x140 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040341] [<ffffffff81011e73>] ? cpu_idle+0xb3/0x110 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040348] [<ffffffff8152bfdb>] ? rest_init+0x6b/0x80 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040356] [<ffffffff81849dcc>] ? start_kernel+0x368/0x371 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040363] [<ffffffff8184933a>] ? x86_64_start_reservations+0x125/0x129 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040369] [<ffffffff81849438>] ? x86_64_start_kernel+0xfa/0x109 Jun 21 13:02:05 picimaci-laptop kernel: [21553.040374] ---[ end trace d57e1f7d95a1560b ]---
This bug affects me also. This used to take effect, when I have huge traffic.
The log: buildd/ linux-2. 6.32/net/ sched/sch_ generic. c:261 dev_watchdog+ 0x262/0x270( ) codec_si3054 snd_hda_ codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm arc4 snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer fbcon ath5k snd_seq_device tileblit mac80211 font joydev sis190 snd bitblit ath fglrx(P) soundcore softcursor mii sis_agp snd_page_alloc cfg80211 vga16fb uvcvideo vgastate videodev psmouse usbhid vhba v4l1_compat serio_raw hid v4l2_compat_ioctl32 video output asus_laptop led_class lp parport tcp_illinois jfs usb_storage sata_sis d0b>] warn_slowpath_ common+ 0x7b/0xc0 db1>] warn_slowpath_ fmt+0x41/ 0x50 612>] dev_watchdog+ 0x262/0x270 378>] ? tick_dev_ program_ event+0x68/ 0xd0 7a9>] ? default_ spin_lock_ flags+0x9/ 0x10 cfe>] ? _spin_lock+0xe/0x20 3b0>] ? dev_watchdog+ 0x0/0x270 697>] run_timer_ softirq+ 0x197/0x340 378>] ? tick_dev_ program_ event+0x68/ 0xd0 3a7>] __do_softirq+ 0xb7/0x1e0 de0>] ? handle_ IRQ_event+ 0x60/0x170 2ec>] call_softirq+ 0x1c/0x30 cb5>] do_softirq+ 0x65/0xa0 245>] irq_exit+0x85/0x90 ed5>] do_IRQ+0x75/0xf0 b13>] ret_from_ intr+0x0/ 0x11 492>] ? acpi_idle_ enter_simple+ 0x117/0x14b 48b>] ? acpi_idle_ enter_simple+ 0x110/0x14b 537>] ? cpuidle_ idle_call+ 0xa7/0x140 e73>] ? cpu_idle+0xb3/0x110 fdb>] ? rest_init+0x6b/0x80 dcc>] ? start_kernel+ 0x368/0x371 33a>] ? x86_64_ start_reservati ons+0x125/ 0x129 438>] ? x86_64_ start_kernel+ 0xfa/0x109
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040063] WARNING: at /build/
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040068] Hardware name: F5SL
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040073] NETDEV WATCHDOG: eth0 (sis190): transmit queue 0 timed out
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040077] Modules linked in: binfmt_misc ppdev vboxnetadp vboxnetflt vboxdrv snd_hda_
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040176] Pid: 0, comm: swapper Tainted: P 2.6.32-22-generic #36-Ubuntu
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040181] Call Trace:
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040185] <IRQ> [<ffffffff81066
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040203] [<ffffffff81066
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040210] [<ffffffff81476
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040220] [<ffffffff81094
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040229] [<ffffffff81039
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040238] [<ffffffff81540
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040244] [<ffffffff81476
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040252] [<ffffffff81077
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040259] [<ffffffff81094
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040267] [<ffffffff8106e
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040274] [<ffffffff810c4
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040282] [<ffffffff81014
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040288] [<ffffffff81015
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040293] [<ffffffff8106e
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040300] [<ffffffff81545
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040306] [<ffffffff81013
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040309] <EOI> [<ffffffff8130d
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040324] [<ffffffff8130d
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040333] [<ffffffff81437
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040341] [<ffffffff81011
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040348] [<ffffffff8152b
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040356] [<ffffffff81849
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040363] [<ffffffff81849
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040369] [<ffffffff81849
Jun 21 13:02:05 picimaci-laptop kernel: [21553.040374] ---[ end trace d57e1f7d95a1560b ]---