[   16.350879] eth0: Media Link On 100mbps full-duplex 
[   24.360035] eth0: no IPv6 routers present
[  812.350327] eth0: Media Link Off
[  877.040018] ------------[ cut here ]------------
[  877.040031] WARNING: at /build/buildd/linux-2.6.31/net/sched/sch_generic.c:246 dev_watchdog+0x262/0x270()
[  877.040034] Hardware name:  
[  877.040036] NETDEV WATCHDOG: eth0 (sis900): transmit queue 0 timed out
[  877.040039] Modules linked in: binfmt_misc snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi iptable_filter snd_seq_midi_event ip_tables x_tables snd_seq snd_timer snd_seq_device shpchp snd soundcore snd_page_alloc amd64_edac_mod ppdev parport_pc k8temp edac_core psmouse serio_raw lp parport floppy sis900 mii
[  877.040066] Pid: 2122, comm: sdl-ball Not tainted 2.6.31-14-generic #48-Ubuntu
[  877.040068] Call Trace:
[  877.040071]  <IRQ>  [<ffffffff8105e788>] warn_slowpath_common+0x78/0xb0
[  877.040083]  [<ffffffff8105e81c>] warn_slowpath_fmt+0x3c/0x40
[  877.040086]  [<ffffffff8144fde2>] dev_watchdog+0x262/0x270
[  877.040091]  [<ffffffff81049809>] ? sched_slice+0x59/0xa0
[  877.040095]  [<ffffffff81052171>] ? task_tick_fair+0x51/0x120
[  877.040098]  [<ffffffff81053ec3>] ? scheduler_tick+0x123/0x270
[  877.040101]  [<ffffffff8144fb80>] ? dev_watchdog+0x0/0x270
[  877.040105]  [<ffffffff8106ad0c>] run_timer_softirq+0x16c/0x270
[  877.040110]  [<ffffffff8106549d>] __do_softirq+0xbd/0x200
[  877.040114]  [<ffffffff810131ec>] call_softirq+0x1c/0x30
[  877.040117]  [<ffffffff81014bc5>] do_softirq+0x55/0x90
[  877.040120]  [<ffffffff81065205>] irq_exit+0x85/0x90
[  877.040124]  [<ffffffff8102cbdc>] smp_apic_timer_interrupt+0x6c/0xa0
[  877.040130]  [<ffffffff81012bb3>] apic_timer_interrupt+0x13/0x20
[  877.040132]  <EOI> 
[  877.040134] ---[ end trace aed6789e8d11b362 ]---
[  877.040139] eth0: Transmit timeout, status 00000004 00000000 
[  877.350926] eth0: Media Link On 100mbps full-duplex 
[ 1003.350315] eth0: Media Link Off
[ 1088.040010] eth0: Transmit timeout, status 00000004 00000000 
[ 1088.350908] eth0: Media Link On 100mbps full-duplex