BUG: unable to handle kernel NULL pointer dereference at 0000002c
IP: [<f82ec355>] cifs_show_options+0xf5/0x440 [cifs]
*pde = bf7eb067 
Oops: 0000 [#4] SMP 
last sysfs file: /sys/devices/pci0000:00/0000:00:11.0/0000:02:01.0/irq
Modules linked in: nls_cp437 cifs vmblock vmci vmhgfs acpiphp snd_ens1371 ppdev gameport snd_ac97_codec ac97_bus snd_pcm vmware_balloon snd_seq_midi snd_rawmidi psmouse serio_raw snd_seq_midi_event snd_seq snd_timer snd_seq_device parport_pc snd soundcore snd_page_alloc intel_agp i2c_piix4 shpchp agpgart lp parport pcnet32 mptspi floppy mii mptscsih mptbase scsi_transport_spi vmw_pvscsi

Pid: 11320, comm: apt-get Tainted: G      D     2.6.35-17-generic #23-Ubuntu 440BX Desktop Reference Platform/VMware Virtual Platform
EIP: 0060:[<f82ec355>] EFLAGS: 00210246 CPU: 2
EIP is at cifs_show_options+0xf5/0x440 [cifs]
EAX: 00000000 EBX: f0e05660 ECX: f0e3fee0 EDX: 00000000
ESI: f117ac00 EDI: f1125e00 EBP: f0e3fefc ESP: f0e3fed8
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process apt-get (pid: 11320, ti=f0e3e000 task=f3799960 task.ti=f0e3e000)
Stack:
 f0e05660 f8316d06 00000000 c073974b 00000000 f1e17b00 f1e17b00 c05e11f8
<0> f0e05660 f0e3ff1c c022f894 00000000 f1e17b00 eb86f6e8 0000001c f0e05660
<0> f1e17b30 f0e3ff64 c02330a5 f0e3ff2c c032e006 f0e3ff34 00000000 b63e701c
Call Trace:
 [<c022f894>] ? show_vfsmnt+0xd4/0x100
 [<c02330a5>] ? seq_read+0xf5/0x3a0
 [<c032e006>] ? apparmor_file_permission+0x16/0x20
 [<c02188af>] ? vfs_read+0x9f/0x190
 [<c0232fb0>] ? seq_read+0x0/0x3a0
 [<c02189e2>] ? sys_read+0x42/0x70
 [<c05c78c4>] ? syscall_call+0x7/0xb
Code: 44 24 04 f0 6c 31 f8 89 1c 24 e8 a7 67 f4 c7 8b 47 14 8b 50 24 c7 44 24 04 06 6d 31 f8 89 1c 24 89 55 ec e8 8e 67 f4 c7 8b 55 ec <0f> b7 42 2c 66 83 f8 02 0f 84 85 01 00 00 66 83 f8 0a 0f 84 33 
EIP: [<f82ec355>] cifs_show_options+0xf5/0x440 [cifs] SS:ESP 0068:f0e3fed8
CR2: 000000000000002c
---[ end trace 194efa00483bba1b ]---