BUG: unable to handle kernel NULL pointer dereference at 00000001
IP: [<c01bb811>] put_page+0x11/0x100
*pde = add87067 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/devices/LNXSYSTM:00/device:00/PNP0C0A:00/power_supply/BAT1/charge_full
Modules linked in: cbc aes_i586 aes_generic binfmt_misc ppdev snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event ecb snd_seq iptable_filter ath9k dm_crypt snd_timer ip_tables joydev snd_seq_device mac80211 x_tables ath snd i2c_piix4 shpchp psmouse soundcore cfg80211 snd_page_alloc k8temp serio_raw led_class atl1c lp parport radeon ttm drm agpgart i2c_algo_bit video output

Pid: 729, comm: phy0 Not tainted (2.6.31-14-generic #48-Ubuntu) Aspire 5532     
EIP: 0060:[<c01bb811>] EFLAGS: 00010282 CPU: 0
EIP is at put_page+0x11/0x100
EAX: 00000001 EBX: 00000001 ECX: f67d9600 EDX: f6170540
ESI: f67d9600 EDI: f67d9600 EBP: f678fd84 ESP: f678fd70
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process phy0 (pid: 729, ti=f678e000 task=f66dcb60 task.ti=f678e000)
Stack:
 00000000 00000000 00000001 f67d9600 f67d9600 f678fd94 c0493267 f67d9600
<0> 00000009 f678fda0 c0492da2 f64721a0 f678fda8 c0492e3c f678fde4 f8605eaf
<0> 00000000 00000000 00000000 00000000 f6473148 00000000 f61704b6 f61704b2
Call Trace:
 [<c0493267>] ? skb_release_data+0x87/0xa0
 [<c0492da2>] ? __kfree_skb+0x12/0x90
 [<c0492e3c>] ? consume_skb+0x1c/0x40
 [<f8605eaf>] ? ieee80211_tx_status+0x43f/0x470 [mac80211]
 [<f86f1b24>] ? ath_tx_complete+0x124/0x150 [ath9k]
 [<f86f1bc1>] ? ath_tx_complete_buf+0x71/0xc0 [ath9k]
 [<c014b405>] ? __do_softirq+0xe5/0x1a0
 [<f86f2f94>] ? ath_draintxq+0x134/0x280 [ath9k]
 [<f86f41ee>] ? ath_drain_all_txq+0xce/0x140 [ath9k]
 [<f86f00e2>] ? ath_set_channel+0x82/0x200 [ath9k]
 [<f86ecaae>] ? ath_update_chainmask+0x7e/0x90 [ath9k]
 [<f86f0407>] ? ath9k_config+0x1a7/0x200 [ath9k]
 [<f8605972>] ? ieee80211_hw_config+0x72/0xb0 [mac80211]
 [<f860a146>] ? ieee80211_scan_work+0xb6/0x220 [mac80211]
 [<c056e97c>] ? schedule+0x40c/0x730
 [<c0157a7e>] ? run_workqueue+0x6e/0x140
 [<f860a090>] ? ieee80211_scan_work+0x0/0x220 [mac80211]
 [<c0157bd8>] ? worker_thread+0x88/0xe0
 [<c015c280>] ? autoremove_wake_function+0x0/0x40
 [<c0157b50>] ? worker_thread+0x0/0xe0
 [<c015bf8c>] ? kthread+0x7c/0x90
 [<c015bf10>] ? kthread+0x0/0x90
 [<c0104007>] ? kernel_thread_helper+0x7/0x10
Code: fe ff ff 3e 80 23 fb eb dc 90 55 b8 e0 be 1b c0 89 e5 e8 13 d8 f9 ff 5d c3 90 55 89 e5 83 ec 14 89 5d f4 89 c3 89 75 f8 89 7d fc <66> f7 00 00 c0 0f 85 cc 00 00 00 3e ff 48 04 0f 94 c0 84 c0 74 
EIP: [<c01bb811>] put_page+0x11/0x100 SS:ESP 0068:f678fd70
CR2: 0000000000000001
---[ end trace ba849a4b4639191a ]---