BUG at drivers/block/ll_rw_blk.c:1945! [2.5.45]

Happenes when I read larger files or dirs from an ext2 fs on a raid0 md device.

kernel BUG at drivers/block/ll_rw_blk.c:1945!
invalid operand: 0000

CPU:    0
EIP:    0060:[submit_bio+21/84]    Not tainted
EFLAGS: 00010246
eax: 00000000   ebx: 00000000   ecx: cb8a0f60   edx: 00000000
esi: cb8a0f60   edi: c1304080   ebp: d9f63cd4   esp: d9f63c5c
ds: 0068   es: 0068   ss: 0068
Process cat (pid: 8826, threadinfo=d9f62000 task=d74cb920)
Stack: 00001000 c014c812 00000000 cb8a0f60 c014ca7c 00000000 cb8a0f60
c1304088
       c1304080 00000001 dffa67e0 00000002 dfdaee40 00000001 00000003
00000001
       0000000c cfa7a4f0 00000010 dffeb1a0 00000020 ffffffff 016a9d07
00000001
Call Trace: [mpage_bio_submit+34/40]  [do_mpage_readpage+500/704]

[add_to_page_cache+30/132] [mpage_readpages+122/280] [ext2_get_block+0/752] [ext2_readpages+25/32] [ext2_get_block+0/752] [read_pages+56/260] [buffered_rmqueue+198/208] [__alloc_pages+122/568] [do_page_cache_readahead+219/256] [page_cache_readahead+210/292] [do_generic_mapping_read+85/820] [__generic_file_aio_read+461/500] [file_read_actor+0/244] [do_anonymous_page+323/348] [generic_file_read+123/156] [handle_mm_fault+97/208] [do_page_fault+0/1028] [do_brk+253/468] [vfs_read+193/292] [sys_read+42/60] [syscall_call+7/11]

Code: 0f 0b 99 07 cb e7 2b c0 83 79 24 00 75 09 0f 0b 9a 07 cb e7