BUG: NMI Watchdog detected LOCKUP on CPU0, eip c037de30, registers:
Modules linked in: wlan_scan_ap wlan_scan_sta snd_pcm_oss snd_mixer_oss nfsd exportfs ipv6 ohci_hcd rtc_cmos rtc_core rtc_lib amd64_agp agpgart shpchp pci_hotplug e1000 uhci_hcd ehci_hcd usbcore i2c_viapro snd_via82xx snd_ac97_codec ac97_bus snd_pcm snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi snd_seq_device snd via_rhine k8temp ath_rate_sample ath_pci ath_hal(P) wlan_acl wlan eeprom w83781d hwmon_vid i2c_isa i2c_amd756 i2c_core ide_scsi
CPU:    0
EIP:    0060:[<c037de30>]    Tainted: P       VLI
EFLAGS: 00000086   (2.6.21.3-ng-ring3-s2s-sqsh-l7-swan-imq-esfq-smp-kvm-amd-dnd #3)
EIP is at _spin_lock_irqsave+0x40/0x50
eax: 00000082   ebx: f5150000   ecx: 00000082   edx: f514b8d0
esi: f5167380   edi: 00000000   ebp: f514a480   esp: c0473c20
ds: 007b   es: 007b   fs: 00d8  gs: 0000  ss: 0068
Process swapper (pid: 0, ti=c0472000 task=c043cd00 task.ti=c0472000)
Stack: f8af96d0 f5150000 f5167380 00000600 00000001 00000001 f5167380 0000000c 
       00000002 00000004 00000000 00000001 00000000 00000000 00000000 00000000 
       00000003 f4ed4bc0 00000000 f514b8d0 00000000 f5167380 00000000 00000000 
Call Trace:
 [<f8af96d0>] ath_tx_start+0x870/0x11a0 [ath_pci]
 [<f8af2ecd>] ath_hardstart+0x87d/0xaf0 [ath_pci]
 [<c0342e2a>] icmp_reply+0x21a/0x280
 [<c0118f12>] try_to_wake_up+0x252/0x2b0
 [<c02fc4f2>] dev_hard_start_xmit+0x62/0xe0
 [<c030c602>] __qdisc_run+0x72/0x1b0
 [<c02fc791>] dev_queue_xmit+0x221/0x2a0
 [<f8b197b7>] ieee80211_hardstart+0x1c7/0x2f0 [wlan]
 [<c02fc4f2>] dev_hard_start_xmit+0x62/0xe0
 [<c02fc700>] dev_queue_xmit+0x190/0x2a0
 [<c03205c2>] ip_output+0x172/0x290
 [<c02f70de>] pskb_expand_head+0xde/0x130
 [<c031eaa0>] ip_forward+0x1a0/0x2a0
 [<c031d236>] ip_rcv+0x236/0x4c0
 [<c02fce5e>] netif_receive_skb+0x2be/0x3c0
 [<c0130008>] cleanup_workqueue_thread+0x28/0x50
 [<f8adfede>] rhine_rx+0x2de/0x440 [via_rhine]
 [<c0136349>] enqueue_hrtimer+0xb9/0x130
 [<f8ade364>] rhine_napipoll+0x24/0xb0 [via_rhine]
 [<c02fd116>] net_rx_action+0x96/0x1e0
 [<c012481d>] __do_softirq+0xcd/0xf0
 [<c0124891>] do_softirq+0x51/0x60
 [<c012493d>] irq_exit+0x6d/0x70
 [<c010682e>] do_IRQ+0x3e/0x80
 [<c0104b9b>] common_interrupt+0x23/0x28
 [<c0116222>] native_safe_halt+0x2/0x10
 [<c010206b>] default_idle+0x3b/0x60
 [<c0102119>] cpu_idle+0x79/0x90
 [<c0478d4c>] start_kernel+0x1dc/0x250
 [<c0478640>] unknown_bootoption+0x0/0x1a0
 =======================
Code: c1 90 fe 0a 79 2e f7 c1 00 02 00 00 74 1d fb 66 66 66 90 66 66 66 90 90 f3 90 80 3a 00 7e f9 fa 66 66 66 90 66 66 66 90 90 eb d6 <f3> 90 80 3a 00 7f cf eb f7 89 c8 c3 8d 74 26 00 89 c2 fa 66 66