Comment 2 for bug 545334

I have same problem. Ethernet connection is dropped, I have to reboot to enable it.

[UFW BLOCK] IN=ppp0 OUT= MAC= SRC=91.103.79.97 DST=92.113.71.113 LEN=58 TOS=0x00 PREC=0x00 TTL=121 ID=25949 PROTO=UDP SPT=32778 DPT=38610 LEN=38
Jul 2 23:02:58 airborne kernel: [ 304.269306] [UFW BLOCK] IN=ppp0 OUT= MAC= SRC=178.176.158.24 DST=92.113.71.113 LEN=40 TOS=0x00 PREC=0x00 TTL=242 ID=3333 PROTO=TCP SPT=56618 DPT=51413 WINDOW=0 RES=0x00 RST URGP=0
Jul 2 23:03:03 airborne kernel: [ 309.504658] [UFW BLOCK] IN=ppp0 OUT= MAC= SRC=86.67.23.243 DST=92.113.71.113 LEN=58 TOS=0x00 PREC=0x00 TTL=117 ID=27233 PROTO=UDP SPT=49149 DPT=38610 LEN=38
Jul 2 23:03:09 airborne kernel: [ 316.074568] atl1c 0000:03:00.0: irq 28 for MSI/MSI-X
Jul 2 23:03:09 airborne kernel: [ 316.074661] atl1c 0000:03:00.0: atl1c: eth0 NIC Link is Up<100 Mbps Full Duplex>
Jul 2 23:03:49 airborne kernel: [ 356.010111] ------------[ cut here ]------------
Jul 2 23:03:49 airborne kernel: [ 356.010131] WARNING: at /build/buildd/linux-2.6.32/net/sched/sch_generic.c:261 dev_watchdog+0x262/0x270()
Jul 2 23:03:49 airborne kernel: [ 356.010138] Hardware name: UL30A
Jul 2 23:03:49 airborne kernel: [ 356.010143] NETDEV WATCHDOG: eth0 (atl1c): transmit queue 0 timed out
Jul 2 23:03:49 airborne kernel: [ 356.010147] Modules linked in: binfmt_misc ppdev pppoe pppox ipt_REJECT ipt_LOG xt_limit xt_tcpudp ipt_addrtype xt_state ip6table_filter ip6_tables snd_hda_codec_intelhdmi snd_hda_codec_realtek nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_nat nf_conntrack_ipv4 snd_hda_intel nf_defrag_ipv4 nf_conntrack_ftp snd_hda_codec arc4 nf_conntrack snd_hwdep iptable_filter ath9k snd_pcm_oss ip_tables snd_mixer_oss snd_pcm x_tables mac80211 snd_seq_dummy snd_seq_oss snd_seq_midi ath snd_rawmidi snd_seq_midi_event cfg80211 snd_seq snd_timer psmouse snd_seq_device uvcvideo snd soundcore asus_laptop videodev atl1c v4l1_compat led_class serio_raw lp snd_page_alloc v4l2_compat_ioctl32 parport xfs exportfs sha256_generic cryptd aes_x86_64 aes_generic dm_crypt fbcon tileblit font bitblit softcursor vga16fb vgastate i915 usbhid drm_kms_helper hid drm i2c_algo_bit intel_agp video output
Jul 2 23:03:49 airborne kernel: [ 356.010297] Pid: 0, comm: swapper Not tainted 2.6.32-23-generic #37-Ubuntu
Jul 2 23:03:49 airborne kernel: [ 356.010302] Call Trace:
Jul 2 23:03:49 airborne kernel: [ 356.010307] <IRQ> [<ffffffff81066dbb>] warn_slowpath_common+0x7b/0xc0
Jul 2 23:03:49 airborne kernel: [ 356.010325] [<ffffffff81066e61>] warn_slowpath_fmt+0x41/0x50
Jul 2 23:03:49 airborne kernel: [ 356.010334] [<ffffffff814789f2>] dev_watchdog+0x262/0x270
Jul 2 23:03:49 airborne kernel: [ 356.010343] [<ffffffff81080bd7>] ? insert_work+0x77/0xc0
Jul 2 23:03:49 airborne kernel: [ 356.010353] [<ffffffff810397a9>] ? default_spin_lock_flags+0x9/0x10
Jul 2 23:03:49 airborne kernel: [ 356.010361] [<ffffffff81478790>] ? dev_watchdog+0x0/0x270
Jul 2 23:03:49 airborne kernel: [ 356.010369] [<ffffffff8107776b>] run_timer_softirq+0x19b/0x340
Jul 2 23:03:49 airborne kernel: [ 356.010380] [<ffffffff810945c8>] ? tick_dev_program_event+0x68/0xd0
Jul 2 23:03:49 airborne kernel: [ 356.010388] [<ffffffff8106e467>] __do_softirq+0xb7/0x1e0
Jul 2 23:03:49 airborne kernel: [ 356.010396] [<ffffffff810c52c0>] ? handle_IRQ_event+0x60/0x170
Jul 2 23:03:49 airborne kernel: [ 356.010405] [<ffffffff810142ec>] call_softirq+0x1c/0x30
Jul 2 23:03:49 airborne kernel: [ 356.010412] [<ffffffff81015cb5>] do_softirq+0x65/0xa0
Jul 2 23:03:49 airborne kernel: [ 356.010419] [<ffffffff8106e305>] irq_exit+0x85/0x90
Jul 2 23:03:49 airborne kernel: [ 356.010427] [<ffffffff815487a5>] do_IRQ+0x75/0xf0
Jul 2 23:03:49 airborne kernel: [ 356.010435] [<ffffffff81013b13>] ret_from_intr+0x0/0x11
Jul 2 23:03:49 airborne kernel: [ 356.010439] <EOI> [<ffffffff8130ed23>] ? acpi_idle_enter_bm+0x28a/0x2be
Jul 2 23:03:49 airborne kernel: [ 356.010455] [<ffffffff8130ed1c>] ? acpi_idle_enter_bm+0x283/0x2be
Jul 2 23:03:49 airborne kernel: [ 356.010465] [<ffffffff81439837>] ? cpuidle_idle_call+0xa7/0x140
Jul 2 23:03:49 airborne kernel: [ 356.010474] [<ffffffff81011e73>] ? cpu_idle+0xb3/0x110
Jul 2 23:03:49 airborne kernel: [ 356.010482] [<ffffffff8153d50e>] ? start_secondary+0xa8/0xaa
Jul 2 23:03:49 airborne kernel: [ 356.010488] ---[ end trace 4a122e9c102763c0 ]---
Jul 2 23:03:50 airborne kernel: [ 356.436243] atl1c 0000:03:00.0: irq 28 for MSI/MSI-X
Jul 2 23:03:50 airborne kernel: [ 356.436336] atl1c 0000:03:00.0: atl1c: eth0 NIC Link is Up<100 Mbps Full Duplex>
Jul 2 23:05:01 airborne kernel: [ 427.436441] atl1c 0000:03:00.0: irq 28 for MSI/MSI-X
Jul 2 23:05:01 airborne kernel: [ 427.436535] atl1c 0000:03:00.0: atl1c: eth0 NIC Link is Up<100 Mbps Full Duplex>