Created attachment 582281 [details]
full dmesg with the problem

Description of problem:
Atheros Communications AR8151 v2.0 Gigabit Ethernet (rev c0) chip, with atl1c driver. Unplugged ethernet cable, then reinserted. Shortly afterwards, the following showed up:


[  862.723052] atl1c 0000:04:00.0: atl1c: p5p1 NIC Link is Down
[  876.040759] atl1c 0000:04:00.0: atl1c: p5p1 NIC Link is Up<1000 Mbps Full Duplex>
[  881.798022] ------------[ cut here ]------------
[  881.798041] WARNING: at net/sched/sch_generic.c:256 dev_watchdog+0x240/0x250()
[  881.798046] Hardware name: A15A/HE/HC
[  881.798051] NETDEV WATCHDOG: p5p1 (atl1c): transmit queue 0 timed out
[  881.798055] Modules linked in: coretemp ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast bnep ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables iptable_nat nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack snd_hda_codec_hdmi arc4 uvcvideo ath9k snd_hda_codec_conexant videobuf2_vmalloc videobuf2_memops videobuf2_core ath9k_common videodev media iTCO_wdt ath9k_hw snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc ath3k btusb ath bluetooth mac80211 cfg80211 iTCO_vendor_support microcode snd_timer snd atl1c i2c_i801 serio_raw rfkill soundcore uinput binfmt_misc wmi i915 video i2c_algo_bit drm_kms_helper drm i2c_core [last unloaded: scsi_wait_scan]
[  881.798160] Pid: 0, comm: swapper/0 Not tainted 3.3.4-3.fc17.x86_64 #1
[  881.798165] Call Trace:
[  881.798168]  <IRQ>  [<ffffffff810568af>] warn_slowpath_common+0x7f/0xc0
[  881.798190]  [<ffffffff810569a6>] warn_slowpath_fmt+0x46/0x50
[  881.798200]  [<ffffffff814fcdd0>] dev_watchdog+0x240/0x250
[  881.798208]  [<ffffffff814fcb90>] ? dev_deactivate_queue.constprop.30+0x80/0x80
[  881.798221]  [<ffffffff81066011>] run_timer_softirq+0x141/0x340
[  881.798229]  [<ffffffff8105dc90>] __do_softirq+0xc0/0x1e0
[  881.798237]  [<ffffffff8101aba3>] ? native_sched_clock+0x13/0x80
[  881.798247]  [<ffffffff815f4ddc>] call_softirq+0x1c/0x30
[  881.798257]  [<ffffffff81015465>] do_softirq+0x75/0xb0
[  881.798263]  [<ffffffff8105e055>] irq_exit+0xb5/0xc0
[  881.798272]  [<ffffffff815f572e>] smp_apic_timer_interrupt+0x6e/0x99
[  881.798280]  [<ffffffff815f43de>] apic_timer_interrupt+0x6e/0x80
[  881.798284]  <EOI>  [<ffffffff81318246>] ? intel_idle+0xe6/0x150
[  881.798298]  [<ffffffff81318227>] ? intel_idle+0xc7/0x150
[  881.798310]  [<ffffffff8149ddf7>] cpuidle_idle_call+0xb7/0x230
[  881.798319]  [<ffffffff8101220f>] cpu_idle+0xaf/0x120
[  881.798327]  [<ffffffff815c9ede>] rest_init+0x72/0x74
[  881.798339]  [<ffffffff81aedc00>] start_kernel+0x3ba/0x3c5
[  881.798348]  [<ffffffff81aed346>] x86_64_start_reservations+0x131/0x135
[  881.798356]  [<ffffffff81aed44a>] x86_64_start_kernel+0x100/0x10f
[  881.798362] ---[ end trace 44ae51280819d503 ]---


Network connection seemed to continue to work properly. Full dmesg attached.

Version-Release number of selected component (if applicable):
kernel-3.3.4-4.fc17.x86_64
linux-firmware-20120206-0.3.git06c8f81.fc17.noarch