Index of /bits/2.6.33-git/dm

 Name                    Last modified       Size  Description

 Parent Directory        16-Dec-2009 06:38      -  
 dmesg-2.6.33-rc1        18-Dec-2009 10:09    24k  
 blk-settings-2.diff.txt 18-Dec-2009 10:09     5k  
 blk-settings-1.diff.txt 18-Dec-2009 10:08     1k  
 dmesg-2.6.32            12-Dec-2009 02:04    34k  
 config-2.6.32-rc7       12-Dec-2009 02:04    42k  
 config-2.6.32           12-Dec-2009 02:04    43k  
 dmesg-2.6.32-rc7        12-Dec-2009 02:04    32k  

* http://lkml.org/lkml/2009/12/9/123 - todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
* http://lkml.org/lkml/2009/7/15/235 - regression post 2.6.30: device mapper fails on some logical volumes
* http://lkml.org/lkml/2009/6/25/71  - [2.6.31-rc1] device-mapper: target device sda6 is misaligned

---
# gpg -d key.asc | cryptsetup luksOpen /dev/sda1 wdc0
gpg: AES256 encrypted data
gpg: encrypted with 1 passphrase
key slot 0 unlocked.
Command successful.

# dmesg
[...]
[   70.893418] device-mapper: table: 254:1: target device sda1 is misaligned: physical_block_size=512, logical_block_size=512, alignment_offset=0, start=4096
[   70.894454] device-mapper: table: 254:1: target device sda1 is misaligned: physical_block_size=512, logical_block_size=512, alignment_offset=0, start=4096
[   71.735033] device-mapper: table: 254:1: target device sda1 is misaligned: physical_block_size=512, logical_block_size=512, alignment_offset=0, start=790528
[   71.736085] device-mapper: table: 254:1: target device sda1 is misaligned: physical_block_size=512, logical_block_size=512, alignment_offset=0, start=790528
[   72.243126] EXT4-fs (dm-1): mounted filesystem with ordered data mode

[   74.325250] device-mapper: table: 254:2: target device sdb1 is misaligned: physical_block_size=512, logical_block_size=512, alignment_offset=0, start=4096
[   74.326322] device-mapper: table: 254:2: target device sdb1 is misaligned: physical_block_size=512, logical_block_size=512, alignment_offset=0, start=4096
[   74.916684] device-mapper: table: 254:2: target device sdb1 is misaligned: physical_block_size=512, logical_block_size=512, alignment_offset=0, start=528384
[   74.917798] device-mapper: table: 254:2: target device sdb1 is misaligned: physical_block_size=512, logical_block_size=512, alignment_offset=0, start=528384
[   75.099029] XFS mounting filesystem dm-2

# /sys/block/sda/sda1/alignment_offset /sys/block/sda/queue/physical_block_size /sys/block/sda/queue/logical_block_size 
0
512
512

# dmsetup ls 
wdc1    (254, 2)
wdc0    (254, 1)
cryptswap       (254, 0)

# dmsetup table
wdc1: 0 1953524069 crypt aes-cbc-essiv:sha256 00000000000000000000000000000000 0 8:17 1032
wdc0: 0 1953523557 crypt aes-cbc-essiv:sha256 000000000000000000000000000000000000000000000000 0 8:1 1544
cryptswap: 0 2343751 crypt aes-cbc-essiv:sha256 0000000000000000000000000000000000000000000000000000000000000000 0 3:5 0

# grep wdc /proc/mounts 
/dev/mapper/wdc1 /mnt/backup xfs rw,nosuid,nodev,noexec,relatime,attr2,noquota 0 0
/dev/mapper/wdc0 /mnt/vault ext4 ro,nosuid,nodev,noexec,relatime,barrier=1,data=ordered 0 0