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SubjectNULL pointe rin reiserfs
Date
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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