dev Oops: 0000 [#1] PREEMPT SMP 
 dev last sysfs file: /sys/kernel/uevent_seqnum
 dev Process mount (pid: 2047, ti=c86e8000 task=c99b5400 task.ti=c86e8000)
 dev Stack:
 dev c019d263 c86eef00 c86d2070 c86d2060 00000000 0000000c 00000000 c86d2064
 dev c84f0a00 00000001 0000ffff c6bf6088 c6be3000 c6bf7000 c98e9e00 c6bf8000
 dev Call Trace:
 dev [<c019d179>] path_walk+0x99/0xb0
 dev [<c019d263>] do_path_lookup+0x83/0x160
 dev [<caea0856>] au_opt_br+0x56/0x130 [aufs]
 dev [<caea0e33>] au_opts_mount+0x93/0x210 [aufs]
 dev [<c015182c>] debug_mutex_add_waiter+0x1c/0x60
 dev [<caea92f9>] di_write_lock+0x19/0x40 [aufs]
 dev [<caea92cd>] do_ii_write_lock+0x1d/0x30 [aufs]
 dev [<cae9c812>] aufs_write_lock+0x82/0x90 [aufs]
 dev [<cae9c46f>] aufs_fill_super+0x11f/0x290 [aufs]
 dev [<c020e40f>] strlcpy+0x1f/0x60
 dev [<c0195361>] get_sb_nodev+0x71/0xc0
 dev [<cae9c350>] aufs_fill_super+0x0/0x290 [aufs]
 dev [<cae9b06b>] aufs_get_sb+0x2b/0xe0 [aufs]
 dev [<cae9c350>] aufs_fill_super+0x0/0x290 [aufs]
 dev [<c017536f>] kstrdup+0x2f/0x60
 dev [<c0195042>] vfs_kern_mount+0x72/0x150
 dev [<c019517d>] do_kern_mount+0x3d/0xe0
 dev [<c01aa312>] do_mount+0x442/0x7b0
 dev [<c01a86a8>] copy_mount_options+0xa8/0x130
 dev [<c01aa719>] sys_mount+0x99/0xd0
 dev [<c0103f13>] sysenter_do_call+0x12/0x33
 dev [<c0320000>] virtcons_probe+0x30/0x110
 dev Code: 00 85 c0 0f 88 ee f8 ff ff 8b 54 24 38 85 d2 0f 84 e7 02 00 00 31 db 90 8d 74 26 00 e9 28 f9 ff ff 8b 82 b8 00 00 00 8b 4c 24 40 <8b> 40 64 8b 80 b4 01 00 00 8b 80 d8 00 00 00 8b 40 0c 3b 48 50 
 dev EIP: [<cae9e2b7>] au_br_add+0x777/0xaa0 [aufs] SS:ESP 0068:c86e9d8c
Feb 23 14:11:50 dev aufs 20081208
Feb 23 14:11:50 dev BUG: unable to handle kernel NULL pointer dereference at 00000064
Feb 23 14:11:50 dev IP: [<cae9e2b7>] au_br_add+0x777/0xaa0 [aufs]
Feb 23 14:11:50 dev *pde = 00000000 
Feb 23 14:11:50 dev Oops: 0000 [#1] PREEMPT SMP 
Feb 23 14:11:50 dev last sysfs file: /sys/kernel/uevent_seqnum
Feb 23 14:11:50 dev Modules linked in: aufs squashfs zlib_inflate ppdev ppp_generic lp uhci_hcd snd_pcsp ehci_hcd serio_raw i2c_viapro parport_pc parport i2c_core usbcore sg via_agp shpchp pci_hotplug agpgart thermal processor fan evdev button battery ac loop nfs lockd nfs_acl sunrpc snd_ens1371 gameport snd_ac97_codec snd_rawmidi snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_pcm snd_timer snd_page_alloc snd_mixer_oss snd soundcore ac97_bus slhc 8139too 8139cp mii rtc_cmos rtc_core rtc_lib ext3 jbd mbcache sr_mod cdrom sd_mod ata_generic pata_via pata_acpi libata scsi_mod
Feb 23 14:11:50 dev 
Feb 23 14:11:50 dev Pid: 2047, comm: mount Not tainted (2.6.28-ARCH #1) MS-6156
Feb 23 14:11:50 dev EIP: 0060:[<cae9e2b7>] EFLAGS: 00010246 CPU: 0
Feb 23 14:11:50 dev EIP is at au_br_add+0x777/0xaa0 [aufs]
Feb 23 14:11:50 dev EAX: 00000000 EBX: c6be0bb0 ECX: c84f0a00 EDX: c84dd400
Feb 23 14:11:50 dev ESI: c6be3000 EDI: 00000000 EBP: 00000000 ESP: c86e9d8c
Feb 23 14:11:50 dev DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Feb 23 14:11:50 dev Process mount (pid: 2047, ti=c86e8000 task=c99b5400 task.ti=c86e8000)
Feb 23 14:11:50 dev Stack:
Feb 23 14:11:50 dev 00000000 c86dc01f c019d179 c9a92080 c94773b8 00000038 c9900dc4 c86d2070
Feb 23 14:11:50 dev c019d263 c86eef00 c86d2070 c86d2060 00000000 0000000c 00000000 c86d2064
Feb 23 14:11:50 dev c84f0a00 00000001 0000ffff c6bf6088 c6be3000 c6bf7000 c98e9e00 c6bf8000
Feb 23 14:11:50 dev Call Trace:
Feb 23 14:11:50 dev [<c019d179>] path_walk+0x99/0xb0
Feb 23 14:11:50 dev [<c019d263>] do_path_lookup+0x83/0x160
Feb 23 14:11:50 dev [<caea0856>] au_opt_br+0x56/0x130 [aufs]
Feb 23 14:11:50 dev [<caea0e33>] au_opts_mount+0x93/0x210 [aufs]
Feb 23 14:11:50 dev [<c015182c>] debug_mutex_add_waiter+0x1c/0x60
Feb 23 14:11:50 dev [<caea92f9>] di_write_lock+0x19/0x40 [aufs]
Feb 23 14:11:50 dev [<caea92cd>] do_ii_write_lock+0x1d/0x30 [aufs]
Feb 23 14:11:50 dev [<cae9c812>] aufs_write_lock+0x82/0x90 [aufs]
Feb 23 14:11:50 dev [<cae9c46f>] aufs_fill_super+0x11f/0x290 [aufs]
Feb 23 14:11:50 dev [<c020e40f>] strlcpy+0x1f/0x60
Feb 23 14:11:50 dev [<c0195361>] get_sb_nodev+0x71/0xc0
Feb 23 14:11:50 dev [<cae9c350>] aufs_fill_super+0x0/0x290 [aufs]
Feb 23 14:11:50 dev [<cae9b06b>] aufs_get_sb+0x2b/0xe0 [aufs]
Feb 23 14:11:50 dev [<cae9c350>] aufs_fill_super+0x0/0x290 [aufs]
Feb 23 14:11:50 dev [<c017536f>] kstrdup+0x2f/0x60
Feb 23 14:11:50 dev [<c0195042>] vfs_kern_mount+0x72/0x150
Feb 23 14:11:50 dev [<c019517d>] do_kern_mount+0x3d/0xe0
Feb 23 14:11:50 dev [<c01aa312>] do_mount+0x442/0x7b0
Feb 23 14:11:50 dev [<c01a86a8>] copy_mount_options+0xa8/0x130
Feb 23 14:11:50 dev [<c01aa719>] sys_mount+0x99/0xd0
Feb 23 14:11:50 dev [<c0103f13>] sysenter_do_call+0x12/0x33
Feb 23 14:11:50 dev [<c0320000>] virtcons_probe+0x30/0x110
Feb 23 14:11:50 dev Code: 00 85 c0 0f 88 ee f8 ff ff 8b 54 24 38 85 d2 0f 84 e7 02 00 00 31 db 90 8d 74 26 00 e9 28 f9 ff ff 8b 82 b8 00 00 00 8b 4c 24 40 <8b> 40 64 8b 80 b4 01 00 00 8b 80 d8 00 00 00 8b 40 0c 3b 48 50 
Feb 23 14:11:50 dev EIP: [<cae9e2b7>] au_br_add+0x777/0xaa0 [aufs] SS:ESP 0068:c86e9d8c
Feb 23 14:11:50 dev ---[ end trace 8ab3fc20d1cc3925 ]---