[Ocfs2-devel] [CRASH]Oops in journal_wip on first mount

[Rusty Lynch]

I am seeing the following crash on my 2.4 build as of the latest svn tree.
(I have not tried to check-out an older tree to see if this goes away.)

I see this on a 2.4.22 kernel while attempting to mount a volume for the 
first time.  My mount segfaults, leaving some crud behind...

[root at nobody root]# mount -t ocfs2 /dev/sdb1 /oracle 
Segmentation fault
[root at nobody root]# ps ax|grep ocfs
 4368 ?        SW     0:00 [ocfs2nm-0]
 4370 ?        SW     0:00 [ocfs2lsnr]

    --rusty

Unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:
e0865077
*pde = 00000000
Oops: 0000
ocfs2 parport_pc lp parport ide-cd cdrom autofs nfs lockd sunrpc rfcomm l2cap bluez e100 floppy sg microcode sbp2 ohci1394 ieee1394 keybdev mousedev hid input
CPU:    0
EIP:    0060:[<e0865077>]    Not tainted
EFLAGS: 00010286

EIP is at journal_wipe_Re6b3bfe6 [jbd] 0x17 (2.4.22-1.2149.nptl)
eax: 00000004   ebx: d8f6676c   ecx: 00000001   edx: 00000001
esi: 00000000   edi: 00000000   ebp: 00000000   esp: d7471d44
ds: 0068   es: 0068   ss: 0068
Process mount (pid: 3272, stackpage=d7471000)
Stack: d7471d6c 00000246 0000002a 00000000 c011d061 d8f6676c 00000cc8 d8f66000 
       e0a12bcb 00000000 00000000 e0a33669 dae93580 d8f6676c d8f6676c 00000cc8 
       e0a23ba4 d8f6676c 00000000 e0a3422e 00000000 e0a34715 00000001 00000001 
Call Trace:   [<c011d061>] printk [kernel] 0x111 (0xd7471d54)
[<e0a12bcb>] ocfs_journal_wipe [ocfs2] 0x6b (0xd7471d64)
[<e0a33669>] .rodata.str1.1 [ocfs2] 0x2499 (0xd7471d70)
[<e0a23ba4>] ocfs_check_volume [ocfs2] 0x4e8 (0xd7471d84)
[<e0a3422e>] .rodata.str1.1 [ocfs2] 0x305e (0xd7471d90)
[<e0a34715>] .rodata.str1.1 [ocfs2] 0x3545 (0xd7471d98)
[<e0a28032>] ocfs_mount_volume [ocfs2] 0x5b6 (0xd7471dc4)
[<e0a34a18>] .rodata.str1.1 [ocfs2] 0x3848 (0xd7471dd0)
[<c011cd2f>] __call_console_drivers [kernel] 0x5f (0xd7471dd8)
[<c011ce25>] call_console_drivers [kernel] 0x65 (0xd7471df4)
[<e0a2c000>] ocfs_timeout_func [ocfs2] 0x0 (0xd7471e48)
[<c0149ffd>] set_blocksize [kernel] 0xfd (0xd7471e6c)
[<e0a26450>] ocfs_read_super [ocfs2] 0xf4 (0xd7471e84)
[<c0149743>] get_sb_bdev [kernel] 0x1a3 (0xd7471eb4)
[<e0a40310>] ocfs_fs_type [ocfs2] 0x0 (0xd7471ef8)
[<c0149ab1>] do_kern_mount [kernel] 0x121 (0xd7471f00)
[<e0a40310>] ocfs_fs_type [ocfs2] 0x0 (0xd7471f04)
[<c015d053>] do_add_mount [kernel] 0x93 (0xd7471f24)
[<c015d380>] do_mount [kernel] 0x160 (0xd7471f44)
[<c015d1c9>] copy_mount_options [kernel] 0x79 (0xd7471f74)
[<c015d7a1>] sys_mount [kernel] 0xb1 (0xd7471f94)
[<c0109747>] system_call [kernel] 0x33 (0xd7471fc0)


Code: f6 06 10 75 69 89 34 24 e8 7c f8 ff ff 85 c0 89 c3 75 0a 8b