[DRBD-user] DRBD error

Adrian Malaguti amalaguti at novell.com
Wed Feb 23 10:31:58 CET 2005

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Hi, 
I m trying to setup DRBD between two machines. 
 
I m not quite sure about the procedure... 
I got both connected and fully synchronized but when I try to mount or
create the filesystem in /dev/nb0 
nothing happens and seems to be freezed. 
 
I m using drbd-0.7.5-0.3 
 
This is what I did: 
1.Created partition /dev/hda3 (3GB, reiserfs, without mount point). 
2. Edited /etc/drbd.conf to add resource. 
3. /etc/init.d/drbd start (asks for partner during a couple of seconds) 
4. drbdsetup /dev/nb0 primary 
5. mkfs.reiserfs /dev/nb0 
6. mount /dev/nb0 /mnt 
In this points is where it seems to fail and freeze. 
 
And found some errors in /var/log/messages 
# tail /var/log/messages 
Feb 22 16:28:22 ha1 kernel: drbd: initialised. Version: 0.7.5 
(api:77/proto:74) 
Feb 22 16:28:22 ha1 kernel: drbd: SVN Revision: 1621 build by root at dale,

2004-12-15 16:02:24 
Feb 22 16:28:22 ha1 kernel: drbd: hijacking NBD device major! 
Feb 22 16:28:22 ha1 kernel: drbd: registered as block device major 43 
Feb 22 16:28:23 ha1 /etc/hotplug/block.agent[3386]: try 1 while waiting 
for /block/drbd0's bus_id  
Feb 22 16:28:23 ha1 kernel: drbd0: resync bitmap: bits=754409 
words=23576 
Feb 22 16:28:23 ha1 kernel: drbd0: size = 2946 MB (3017636 KB) 
Feb 22 16:28:23 ha1 kernel: klogd 1.4.1, ---------- state change 
----------  
Feb 22 16:28:23 ha1 kernel: drbd0: 0 KB marked out-of-sync by on disk 
bit-map. 
Feb 22 16:28:23 ha1 kernel: drbd0: No usable activity log found. 
Feb 22 16:28:23 ha1 kernel: drbd0: Marked additional 0 KB as out-of-sync

based on AL. 
Feb 22 16:28:23 ha1 kernel: drbd0: drbdsetup [3431]: cstate Unconfigured

--> StandAlone 
Feb 22 16:28:23 ha1 kernel: drbd0: drbdsetup [3433]: cstate StandAlone 
--> Unconnected 
Feb 22 16:28:23 ha1 kernel: drbd0: drbd0_receiver [3434]: cstate 
Unconnected --> WFConnection 
Feb 22 16:28:24 ha1 /etc/hotplug/block.agent[3386]: try 2 while waiting 
for /block/drbd0's bus_id  
Feb 22 16:28:25 ha1 /etc/hotplug/block.agent[3386]: try 3 while waiting 
for /block/drbd0's bus_id  
Feb 22 16:28:26 ha1 /etc/hotplug/block.agent[3386]: try 4 while waiting 
for /block/drbd0's bus_id  
Feb 22 16:28:27 ha1 /etc/hotplug/block.agent[3386]: try 5 while waiting 
for /block/drbd0's bus_id  
Feb 22 16:28:28 ha1 /etc/hotplug/block.agent[3386]: new block device 
/block/drbd0 
Feb 22 16:28:56 ha1 kernel: drbd0: Secondary/Unknown --> Primary/Unknown

Feb 22 16:29:59 ha1 kernel: Unable to handle kernel NULL pointer 
dereference at virtual address 00000000 
Feb 22 16:29:59 ha1 kernel:  printing eip: 
Feb 22 16:29:59 ha1 kernel: c0163567 
Feb 22 16:29:59 ha1 kernel: *pde = 00000000 
Feb 22 16:29:59 ha1 kernel: Oops: 0002 [#1] 
Feb 22 16:29:59 ha1 kernel: CPU:    0 
Feb 22 16:29:59 ha1 kernel: EIP:    0060:[<c0163567>]    Not tainted 
Feb 22 16:29:59 ha1 kernel: EFLAGS: 00010216   (2.6.5-7.139-default 
SLES9_SP1_BRANCH-200501141541330000)  
Feb 22 16:29:59 ha1 kernel: EIP is at __bio_clone+0x27/0x90 
Feb 22 16:29:59 ha1 kernel: eax: 0000000c   ebx: 00000000   ecx: 
00000003   edx: cbc96800 
Feb 22 16:29:59 ha1 kernel: esi: cdfde9e0   edi: 00000000   ebp: 
cc3c8f8c   esp: cbc93b94 
Feb 22 16:29:59 ha1 kernel: ds: 007b   es: 007b   ss: 0068 
Feb 22 16:29:59 ha1 kernel: Process mount (pid: 3465, 
threadinfo=cbc92000 task=cda2b320) 
Feb 22 16:29:59 ha1 kernel: Stack: cc22be00 00000000 cc3c8f70 cc373800 
cbc96800 d0ba0f32 cc3c8f8c 00020616  
Feb 22 16:29:59 ha1 kernel:        00000000 cdff0880 00001000 c0160315 
c01603b5 cbc93c6c cbc93d54 00000000  
Feb 22 16:29:59 ha1 kernel:        00000000 00001000 00000000 cc22be00 
00000001 00000000 cdff0980 00008648  
Feb 22 16:29:59 ha1 kernel: Call Trace: 
Feb 22 16:29:59 ha1 kernel:  [<d0ba0f32>] 
drbd_make_request_26+0x312/0xb39 [drbd] 
Feb 22 16:29:59 ha1 kernel:  [<c0160315>] wake_up_buffer+0x5/0x20 
Feb 22 16:29:59 ha1 kernel:  [<c01603b5>] ll_rw_block+0x45/0x80 
Feb 22 16:29:59 ha1 kernel:  [<c013dd59>] find_get_page+0x9/0x30 
Feb 22 16:29:59 ha1 kernel:  [<c015f4a7>] 
__find_get_block_slow+0x47/0x1a0 
Feb 22 16:29:59 ha1 kernel:  [<c023411d>] 
generic_make_request+0x10d/0x1f0 
Feb 22 16:29:59 ha1 kernel:  [<c011fda0>] 
autoremove_wake_function+0x0/0x30 
Feb 22 16:29:59 ha1 kernel:  [<c0234250>] submit_bio+0x50/0xe0 
Feb 22 16:29:59 ha1 kernel:  [<c01627d8>] bio_alloc+0xb8/0x1a0 
Feb 22 16:29:59 ha1 kernel:  [<c015efc4>] submit_bh+0x174/0x220 
Feb 22 16:29:59 ha1 kernel:  [<c0160cc6>] 
block_read_full_page+0x336/0x340 
Feb 22 16:29:59 ha1 kernel:  [<c0164680>] blkdev_get_block+0x0/0x50 
Feb 22 16:29:59 ha1 kernel:  [<c013e1aa>] add_to_page_cache+0x3a/0x110 
Feb 22 16:29:59 ha1 kernel:  [<c01450ac>] read_pages+0x12c/0x1a0 
Feb 22 16:29:59 ha1 kernel:  [<c0143d7b>] __alloc_pages+0xbb/0x300 
Feb 22 16:29:59 ha1 kernel:  [<c01451e8>] 
do_page_cache_readahead+0xc8/0x130 
Feb 22 16:29:59 ha1 kernel:  [<c014535b>] 
page_cache_readahead+0x10b/0x200 
Feb 22 16:29:59 ha1 kernel:  [<c013f280>] 
do_generic_mapping_read+0x2f0/0x780 
Feb 22 16:29:59 ha1 kernel:  [<c013dba0>] file_read_actor+0x0/0xe0 
Feb 22 16:29:59 ha1 kernel:  [<c014006d>] 
__generic_file_aio_read+0x18d/0x1f0 
Feb 22 16:29:59 ha1 kernel:  [<c013dba0>] file_read_actor+0x0/0xe0 
Feb 22 16:29:59 ha1 kernel:  [<c0140211>] generic_file_read+0x91/0xb0 
Feb 22 16:29:59 ha1 kernel:  [<c0236290>] exact_match+0x0/0x10 
Feb 22 16:29:59 ha1 kernel:  [<c01652fb>] do_open+0x25b/0x310 
Feb 22 16:29:59 ha1 kernel:  [<c011fda0>] 
autoremove_wake_function+0x0/0x30 
Feb 22 16:29:59 ha1 kernel:  [<c01653cc>] blkdev_open+0x1c/0x50 
Feb 22 16:29:59 ha1 kernel:  [<c015a8f6>] dentry_open_it+0xd6/0x1c0 
Feb 22 16:29:59 ha1 kernel:  [<c015aaa0>] filp_open+0x70/0x80 
Feb 22 16:29:59 ha1 kernel:  [<c0140180>] generic_file_read+0x0/0xb0 
Feb 22 16:29:59 ha1 kernel:  [<c015de20>] vfs_read+0xa0/0x130 
Feb 22 16:29:59 ha1 kernel:  [<c015e081>] sys_read+0x81/0xd0 
Feb 22 16:29:59 ha1 kernel:  [<c0107db9>] sysenter_past_esp+0x52/0x79 
Feb 22 16:29:59 ha1 kernel:  
Feb 22 16:29:59 ha1 kernel: Code: f3 a5 a8 02 74 02 66 a5 a8 01 74 01
a48b 42 0c 8b 0a 89 45  

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