I can confirm the bug too. 2.6.31-20-generic-pae #58-Ubuntu SMP Fri Mar 12 06:25:51 UTC 2010 i686 GNU/Linux
After enabling(block operations debugging (echo 1 > /proc/sys/vm/block_dump) I see lots of messages like these in kern.log: [1052950.193581] pdflush(45): WRITE block 26266552 on md2 [1052950.193589] pdflush(45): WRITE block 26266560 on md2 [1052959.538915] kjournald2(724): WRITE block 26266560 on md2 [1052959.538951] kjournald2(724): WRITE block 26262472 on md2 md2 is a software RAID partition formatted as ext4 and mounted as /. Another ext4 partition is mounted as /home and is occasionally written to by kjournald2, though much less frequently. After remounting root partion with increased commit delay (/etc/fstab: /dev/md2 / ext4 defaults,noatime,errors=remount-ro,commit=15 0 0) the disk activity ceased significantly. I guess, the activity is caused by the daemon flushing ext4 journal, though I wonder what it writes there that often. -- kjournald2 writing to disk every few seconds https://bugs.launchpad.net/bugs/483569 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
