Seems to happen across all arches and fairly often during early boot.

This is from my laptop since it's the easiest to get it from
Aug 20 15:46:54 bree kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000000
Aug 20 15:46:54 bree kernel:  printing eip:
Aug 20 15:46:54 bree kernel: 0214659c
Aug 20 15:46:54 bree kernel: *pde = 00000000
Aug 20 15:46:54 bree kernel: Oops: 0000 [#1]
Aug 20 15:46:54 bree kernel: Modules linked in:
Aug 20 15:46:54 bree kernel: CPU:    0
Aug 20 15:46:54 bree kernel: EIP:    0060:[<0214659c>]    Not tainted
Aug 20 15:46:54 bree kernel: EFLAGS: 00010046   (2.6.8-1.524)
Aug 20 15:46:54 bree kernel: EIP is at kmem_cache_alloc+0x25/0x4c
Aug 20 15:46:54 bree kernel: eax: 00000000   ebx: 000000d0   ecx:
00000000   edx: 29ee9000
Aug 20 15:46:54 bree kernel: esi: 00000246   edi: 00000000   ebp:
feef8688   esp: 29ee9f24
Aug 20 15:46:54 bree kernel: ds: 007b   es: 007b   ss: 0068
Aug 20 15:46:54 bree kernel: Process udev (pid: 31,
threadinfo=29ee9000 task=0361d2a0)
Aug 20 15:46:54 bree kernel: Stack: feef8688 29e8eb80 00000000
02177fc0 00000007 29ea3780 0215f2b5 036306d8
Aug 20 15:46:54 bree kernel:        29ee9f58 00000042 29e8f000
29ee9000 0215f1cf 036306d8 29ea3780 f9328701
Aug 20 15:46:54 bree kernel:        29e8f005 00000009 00000300
00000000 00000000 00001000 080bfe60 29e8f000
Aug 20 15:46:54 bree kernel: Call Trace:
Aug 20 15:46:54 bree kernel:  [<02177fc0>] fcntl_setlk+0x13/0x219
Aug 20 15:46:54 bree kernel:  [<0215f2b5>] dentry_open+0xe0/0x180
Aug 20 15:46:54 bree kernel:  [<0215f1cf>] filp_open+0x36/0x3c
Aug 20 15:46:54 bree kernel:  [<0217404c>] do_fcntl+0x1be/0x207
Aug 20 15:46:54 bree kernel:  [<0217415b>] sys_fcntl64+0x6c/0x7d
Aug 20 15:46:54 bree kernel: Code: 8b 17 8b 02 85 c0 74 10 c7 42 0c 01
00 00 00
48 89 02 8b 44