[21028.412827] BUG: unable to handle kernel paging request at 00300d04
[21028.412832] IP: [<c035aef7>] _copy_from_user+0x97/0x130
[21028.412839] *pde = 6fa0b067 
[21028.412842] Oops: 0003 [#1] SMP 
[21028.412845] last sysfs file: /sys/devices/pci0000:00/0000:00:1c.3/0000:09:00.0/local_cpus
[21028.412849] Modules linked in: scull rfcomm binfmt_misc sco bnep l2cap parport_pc ppdev dm_crypt snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq lib80211_crypt_tkip btusb snd_timer snd_seq_device uvcvideo bluetooth videodev dell_wmi wl(P) v4l1_compat psmouse serio_raw dell_wmi_aio sparse_keymap dell_laptop dcdbas snd lib80211 soundcore snd_page_alloc lp parport dm_raid45 xor i915 drm_kms_helper drm usb_storage intel_agp ahci agpgart i2c_algo_bit video output libahci r8169 mii
[21028.412890] 
[21028.412894] Pid: 8241, comm: dd Tainted: P            2.6.35-27-generic #48-Ubuntu 01HXXJ/Inspiron N5050
[21028.412897] EIP: 0060:[<c035aef7>] EFLAGS: 00010216 CPU: 2
[21028.412900] EIP is at _copy_from_user+0x97/0x130
[21028.412902] EAX: 9f034959 EBX: 00000200 ECX: 00000200 EDX: 477efb2f
[21028.412905] ESI: 08e01000 EDI: 00300d04 EBP: c8b6bf1c ESP: c8b6bf10
[21028.412907]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[21028.412910] Process dd (pid: 8241, ti=c8b6a000 task=f71d2610 task.ti=c8b6a000)
[21028.412912] Stack:
[21028.412913]  f9f26d00 00000cc0 f9f26d14 c8b6bf64 f9f24d84 f9f2636f 0000022d 000002e0
[21028.412920] <0> 00000200 08b74600 00000024 000002e0 000008b4 f247c2d8 08e01000 00000200
[21028.412926] <0> 003d0900 00000200 e677cc80 00000200 08e01000 c8b6bf8c c0218fc2 c8b6bf98
[21028.412933] Call Trace:
[21028.412940]  [<f9f24d84>] ? scull_write+0x193/0x204 [scull]
[21028.412946]  [<c0218fc2>] ? vfs_write+0xa2/0x190
[21028.412949]  [<f9f24bf1>] ? scull_write+0x0/0x204 [scull]
[21028.412953]  [<c0219882>] ? sys_write+0x42/0x70
[21028.412958]  [<c05cadd4>] ? syscall_call+0x7/0xb
[21028.412963]  [<c05c0000>] ? calibrate_delay_direct+0x5a/0xfb
[21028.412965] Code: 8b 1c 24 8b 7c 24 08 89 ec 5d c3 90 89 f0 31 f8 85 05 80 8e 81 c0 74 be 89 d9 8b 46 20 83 f9 43 76 04 8b 46 40 90 8b 06 8b 56 04 <89> 07 89 57 04 8b 46 08 8b 56 0c 89 47 08 89 57 0c 8b 46 10 8b 
[21028.413001] EIP: [<c035aef7>] _copy_from_user+0x97/0x130 SS:ESP 0068:c8b6bf10
[21028.413005] CR2: 0000000000300d04
[21028.413009] ---[ end trace 3bd8365f04ad063d ]---