NULL pointe rin reiserfs

[Alexander Gran <alex@zodiac.dnsalias.org>]

Hi,

after resizing a reiserfs partition, the next cvs process produced:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:
c0192701
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
Modules linked in: usbserial md5 ipv6 sk98lin
CPU:    0
EIP:    0060:[<c0192701>]    Not tainted VLI
EFLAGS: 00010286   (2.6.10-rc1-k7-vrs1)
EIP is at scan_bitmap_block+0x41/0x2c0
eax: f2d0d000   ebx: c6630eac   ecx: 00027305   edx: 00000000
esi: f2d0d060   edi: c6630c48   ebp: eeeb3200   esp: c6630bdc
ds: 007b   es: 007b   ss: 0068
Process cvs (pid: 11807, threadinfo=c6630000 task=d7545ae0)
Stack: 04040404 04040404 00005109 00184859 430034ec 00000800 542e1a94 3e846bff
       b75bcfc3 0000000c c6630c48 eeeb3200 00000000 c0192c57 c6630eac 0000000c
       c6630c48 00008000 00000002 00000002 00000001 eef8ce20 00007fff c6630d68
Call Trace:
 [<c0192c57>] scan_bitmap+0x1d7/0x260
 [<c0193ea6>] reiserfs_allocate_blocknrs+0x196/0x4f0
 [<c01a15b2>] reiserfs_allocate_blocks_for_region+0x302/0x16d0
 [<c0139b18>] add_to_page_cache+0x68/0xc0
 [<c019b085>] make_cpu_key+0x55/0x60
 [<c01a39a3>] reiserfs_prepare_file_region_for_write+0x6b3/0xa10
 [<c01a42d5>] reiserfs_file_write+0x5d5/0x840
 [<c0149b73>] do_no_page+0x63/0x350
 [<c0117b80>] do_page_fault+0x3d0/0x5ee
 [<c015913e>] vfs_write+0xbe/0x130
 [<c0159281>] sys_write+0x51/0x80
 [<c010623b>] syscall_call+0x7/0xb
Code: 3c 8b 28 8b 0f 8b 85 50 01 00 00 8b 40 08 89 4c 24 14 8b 4b 10 85 c9 8d 
34 d0 0f 84 7c 02 00 00 85 f6 0f 84 5a 02 00 00 8b 56 04 <8b> 02 83 e0 04 0f 
85 3f 02 00 00 8d 74 26 00 0f b7 46 02 3b 44

regards
Alex
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