Someone

BUG: unable to handle kernel NULL pointer dereference at virtual address 00000018
printing eip: f8f38cca *pdpt = 00000000338f3001 *pde = 0000000000000000 
Oops: 0002 [#1] SMP 
Modules linked in: snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_hwdep snd soundcore videodev v4l2_common v4l1_compat nvidia(P) agpgart rfcomm l2cap bluetooth snd_page_alloc nfsd auth_rpcgss exportfs battery sg ppdev parport_pc lp parport nfs lockd nfs_acl sunrpc ipv6 nls_iso8859_1 nls_cp437 vfat fat xfs ext2 fuse dm_crypt dm_snapshot dm_mirror dm_mod hwmon_vid eeprom i2c_core sr_mod firewire_sbp2 psmouse ide_generic ide_disk rtc ext3 jbd mbcache raid456 md_mod async_xor async_memcpy async_tx xor sd_mod ide_cd cdrom jmicron sata_nv ata_generic usbhid hid ahci firewire_ohci firewire_core crc_itu_t ehci_hcd libata scsi_mod ohci_hcd generic amd74xx forcedeth usbcore ide_core thermal processor fan

Pid: 11521, comm: speaker-test Tainted: P        (2.6.24-1-686-bigmem #1)
EIP: 0060:[<f8f38cca>] EFLAGS: 00210286 CPU: 0
EIP is at azx_pcm_prepare+0x10f/0x26b [snd_hda_intel]
EAX: 00000000 EBX: 00000000 ECX: 00000004 EDX: 34110000
ESI: f39d65f4 EDI: 00000000 EBP: 00000008 ESP: f2101d68
 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process speaker-test (pid: 11521, ti=f2100000 task=f20107d0 task.ti=f2100000)
Stack: f8f4e914 0000050e f8f4eb38 00010000 00002000 00000031 00000000 f290cd40 
       f7005200 f6fb2a14 f60f3b14 f39d6014 f61a0dd4 34110000 00000000 f6fb2a14 
       00000802 f8e696ac f6fb2a14 f8e58ad1 00000000 f8e58835 f6fb2a14 00000802 
Call Trace:
 [<f8e58ad1>] snd_pcm_do_prepare+0x9/0x19 [snd_pcm]
 [<f8e58835>] snd_pcm_action_single+0x1d/0x40 [snd_pcm]
 [<f8e5972e>] snd_pcm_action_nonatomic+0x43/0x56 [snd_pcm]
 [<f8e5be0e>] snd_pcm_common_ioctl1+0x6c6/0xfb7 [snd_pcm]
 [<c016848f>] __do_fault+0x42d/0x43b
 [<c016b161>] handle_mm_fault+0x5a7/0xb96
 [<f8e5a7c4>] snd_pcm_open+0x15b/0x188 [snd_pcm]
 [<c01e53df>] prio_tree_insert+0x12a/0x1ef
 [<c016614e>] vma_prio_tree_insert+0x17/0x2a
 [<c016dcec>] vma_link+0xab/0xc9
 [<f8e5cea0>] snd_pcm_playback_ioctl1+0x3d1/0x3e7 [snd_pcm]
 [<f8e5cf3b>] snd_pcm_playback_ioctl+0x28/0x31 [snd_pcm]
 [<f8e5cf13>] snd_pcm_playback_ioctl+0x0/0x31 [snd_pcm]
 [<c0186b2b>] do_ioctl+0x1f/0x62
 [<c0186da5>] vfs_ioctl+0x237/0x249
 [<c0186dfc>] sys_ioctl+0x45/0x5d
 [<c0103e5e>] sysenter_past_esp+0x6b/0xa1
 =======================
Code: f8 e8 b2 67 df ff 8b 46 28 8b 1e 8b 40 74 8d 6b 08 8b 88 f8 01 00 00 8b 90 f4 01 00 00 89 4c 24 38 8d 4b 04 89 54 24 34 8b 46 20 <c7> 40 18 00 00 00 00 8b 46 20 c7 40 1c 00 00 00 00 89 4c 24 1c 
EIP: [<f8f38cca>] azx_pcm_prepare+0x10f/0x26b [snd_hda_intel] SS:ESP 0068:f2101d68
---[ end trace fa643bf4412b748f ]---