Comment 69 for bug 927782

I can confirm that the alx driver in quantal kernel is not working.
I trird to rmmod alx; modprobe alx; and got the below warning message,
and then alx driver keeps dumping messages

[ 176.573926] ------------[ cut here ]------------
[ 176.573945] WARNING: at /build/buildd/linux-lts-quantal-3.5.0/net/sched/sch_generic.c:255 dev_watchdog+0x272/0x280()
[ 176.573949] Hardware name:
[ 176.573954] NETDEV WATCHDOG: eth0 (alx): transmit queue 1 timed out
[ 176.573957] Modules linked in: alx snd_hda_codec_idt arc4 snd_hda_intel ath9k snd_hda_codec mac80211 snd_hwdep ath9k_common ath9k_hw snd_pcm kvm_amd fglrx(PO) snd_seq_midi snd_rawmidi kvm snd_seq_midi_event snd_seq parport_pc psmouse ath ppdev snd_timer rfcomm i2c_piix4 ghash_clmulni_intel lp serio_raw snd_seq_device aesni_intel amd_iommu_v2 dm_multipath joydev mdio k10temp bnep btusb(O) cryptd ath3k(O) cfg80211 snd bluetooth parport aes_x86_64 soundcore snd_page_alloc scsi_dh microcode mac_hid binfmt_misc usb_storage hid_generic dm_raid45 usbhid hid ahci libahci xor dm_mirror dm_region_hash dm_log btrfs zlib_deflate libcrc32c [last unloaded: alx]
[ 176.574062] Pid: 0, comm: swapper/3 Tainted: P O 3.5.0-28-generic #47~precise1-Ubuntu
[ 176.574067] Call Trace:
[ 176.574071] <IRQ> [<ffffffff81052c8f>] warn_slowpath_common+0x7f/0xc0
[ 176.574268] [<ffffffffa09796fa>] ? R6XXIsr_ProcessInterrupts+0x1fa/0x2b0 [fglrx]
[ 176.574277] [<ffffffff81052d86>] warn_slowpath_fmt+0x46/0x50
[ 176.574287] [<ffffffff8159e682>] dev_watchdog+0x272/0x280
[ 176.574296] [<ffffffff8101be03>] ? native_sched_clock+0x13/0x80
[ 176.574303] [<ffffffff8159e410>] ? pfifo_fast_dequeue+0xe0/0xe0
[ 176.574310] [<ffffffff8159e410>] ? pfifo_fast_dequeue+0xe0/0xe0
[ 176.574319] [<ffffffff81062e36>] call_timer_fn+0x46/0x160
[ 176.574327] [<ffffffff8159e410>] ? pfifo_fast_dequeue+0xe0/0xe0
[ 176.574334] [<ffffffff81064782>] run_timer_softirq+0x132/0x2a0
[ 176.574343] [<ffffffff810a4315>] ? ktime_get+0x65/0xe0
[ 176.574353] [<ffffffff8105ba48>] __do_softirq+0xa8/0x210
[ 176.574361] [<ffffffff810ab474>] ? tick_program_event+0x24/0x30
[ 176.574369] [<ffffffff816a665c>] call_softirq+0x1c/0x30
[ 176.574378] [<ffffffff81016245>] do_softirq+0x65/0xa0
[ 176.574385] [<ffffffff8105be2e>] irq_exit+0x8e/0xb0
[ 176.574392] [<ffffffff816a6fbe>] smp_apic_timer_interrupt+0x6e/0x99
[ 176.574401] [<ffffffff816a5d0a>] apic_timer_interrupt+0x6a/0x70
[ 176.574404] <EOI> [<ffffffff8101be79>] ? sched_clock+0x9/0x10
[ 176.574418] [<ffffffff8103ff56>] ? native_safe_halt+0x6/0x10
[ 176.574426] [<ffffffff8101c993>] default_idle+0x53/0x1f0
[ 176.574433] [<ffffffff8101d8a9>] cpu_idle+0xd9/0x120
[ 176.574443] [<ffffffff8167983f>] start_secondary+0xc3/0xc5
[ 176.574449] ---[ end trace 7a951f4660a6c471 ]---