Hi!
I have a kind of trivial suggestion for improving the kernel messages for ext3-fs mounts to be more consistent and useful:
Most messages for ext3-mounting include the device, like:
kernel: [ 823.233892] EXT3-fs (dm-7): using internal journal
kernel: [ 823.233899] EXT3-fs (dm-7): mounted filesystem with ordered data mode
However some messages do not include a device, even though they seem device specific. For example:
kernel: [ 823.210989] EXT3-fs: barriers not enabled
kernel: [ 823.233218] kjournald starting. Commit interval 15 seconds
This was observed in the current SLES11 SP2 kernel (3.0.58-0.6.6).
I haven't queried the sources, but it looks like an easy change...
BTW: The kjournal threads are also anonymous in the process list (while xfs (for example) names them):
# ps ax |grep journ
418 ? S 0:00 [kjournald]
1070 ? S 0:00 [kjournald]
1071 ? S 0:00 [kjournald]
1072 ? S 0:00 [kjournald]
1073 ? S 0:00 [kjournald]
1074 ? S 0:00 [kjournald]
1075 ? S 0:00 [kjournald]
5461 ? S 0:00 [kjournald]
5499 ? S 0:00 [kjournald]
5601 ? S 0:00 [kjournald]
5642 ? S 0:00 [kjournald]
5648 ? S 0:00 [kjournald]
5653 ? S 0:00 [kjournald]
5661 ? S 0:00 [kjournald]
5873 tty1 S+ 0:00 grep journ
# ps ax |grep xfs
5506 ? S< 0:00 [xfs_mru_cache]
5507 ? S< 0:00 [xfslogd]
5508 ? S< 0:00 [xfsdatad]
5509 ? S< 0:00 [xfsconvertd]
5510 ? S 0:00 [xfsbufd/dm-10]
5511 ? S 0:00 [xfsaild/dm-10]
5518 ? S 0:00 [xfsbufd/dm-11]
5519 ? S 0:00 [xfsaild/dm-11]
5560 ? S 0:00 [xfsbufd/dm-12]
5561 ? S 0:00 [xfsaild/dm-12]
5593 ? S 0:00 [xfsbufd/dm-13]
5594 ? S 0:00 [xfsaild/dm-13]
5875 tty1 S+ 0:00 grep xfs
Regards,
Ulrich