NBD oops in 2.5-bk.

Current bitkeeper tree seems to have problems with NBD. As soon as I modprobe nbd (or boot with it compiled in) I get this..

nbd: registered device at major 43

Unable to handle kernel paging request at virtual address 5a5a5a7e
 printing eip:
c027864b
*pde = 00000000
Oops: 0000 [#1]
CPU:    0
EIP:    0060:[<c027864b>]    Not tainted
EFLAGS: 00010206

EIP is at kobject_get+0xb/0x50
eax: 5a5a5a6a ebx: 5a5a5a6a ecx: c0492e7f edx: 00000000
esi: ffffffea edi: c60b91a0 ebp: c4f01f14 esp: c4f01f10
ds: 007b es: 007b ss: 0068
Process modprobe (pid: 1141, threadinfo=c4f00000 task=c6524000)

Stack: c60b91a0 c4f01f24 c0278319 5a5a5a6a c60b91a0 c4f01f38 c0278537 c60b91a0 
       c77f8004 c60b9004 c4f01f60 c03063e6 c60b91a0 c60b91a0 00000014 c0492e7d 
       c046f3c6 c77f8004 d087bf60 00000001 c4f01fa8 d08151d9 c77f8004 d087bf40 
Call Trace:
 [<c0278319>] kobject_init+0x29/0x50
 [<c0278537>] kobject_register+0x17/0x50
 [<c03063e6>] blk_register_queue+0x56/0x90
 [<d08151d9>] nbd_init+0x1d9/0x250 [nbd]
 [<c0144f5c>] sys_init_module+0x1cc/0x370
 [<c010a027>] syscall_call+0x7/0xb

Code: 8b 43 14 85 c0 74 0c ff 43 14 89 d8 8b 5d fc 89 ec 5d c3 68 

 Dave Jones     http://www.codemonkey.org.uk

2.5.74-mm does not have this problem, could you try the following patch from Andrew's tree?

nbd-kobject-oops-fix.patch

That should fix the problem. I guess we need to push to Linus?

--
Paul