Unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:
c01b1712
*pde = 00102001
Oops: 0000 [#1]
SMP 
CPU:    3
EIP:    0060:[<c01b1712>]    Tainted: G   U  
EFLAGS: 00010286   (2.6.5-7.283-bigsmp SLES9_SP3_BRANCH-20061129165553) 
EIP is at bdevname+0x2/0x20
eax: 00000000   ebx: f68ee480   ecx: f6a05ed4   edx: f6a05ed4
esi: 00000000   edi: f68ee4a0   ebp: eea93c80   esp: f6a05ec0
ds: 007b   es: 007b   ss: 0068
Process md2_multipath (pid: 8183, threadinfo=f6a04000 task=f6d5c660)
Stack: f919e22d f919ed1e 00000001 00000008 c0125f27 00000002 5a00c580 414c75f4 
       c0426e00 c38fc660 f6d5c660 cdd9dd00 c3907fb8 00000000 f68ee4a0 f697e400 
       f919e3df 00000000 f697e400 f6954c00 eea93c80 f697e400 f697e410 c02c7f85 
Call Trace:
 [<f919e22d>] print_multipath_conf+0x5d/0xb0 [multipath]
 [<c0125f27>] load_balance_newidle+0x97/0x100
 [<f919e3df>] multipath_add_disk+0x1f/0xd0 [multipath]
 [<c02c7f85>] md_check_recovery+0x215/0x3b0
 [<f919e8e9>] multipathd+0x19/0x170 [multipath]
 [<c0128b68>] prepare_to_wait+0x58/0x70
 [<c02c8277>] md_thread+0x157/0x1a5
 [<c012a7d0>] autoremove_wake_function+0x0/0x40
 [<c012a7d0>] autoremove_wake_function+0x0/0x40
 [<c02c8120>] md_thread+0x0/0x1a5
 [<c0107005>] kernel_thread_helper+0x5/0x10

Code: 8b 10 8b 40 58 81 e2 ff ff 0f 00 2b 50 04 e9 db fd ff ff 8d