Another smoking gun here. I did echo 1 > /proc/sys/vm/block_dump and then dmesg. There were huge differences between my laptop and my desktop. On the desktop, the only active disk writes on idle were dirtying of inodes, specifically by rsyslogd and plasma-desktop. These, as you can expect, don't change free disk space. On the laptop, kjournald2 was responsible for WRITE block commands. This I believe means the allocation of new blocks, which explains why i'm constantly losing free space.
Attached is the relevant dmesg for my laptop. ** Attachment added: "dmesg" http://launchpadlibrarian.net/33966031/dmesg -- kjournald2 writes to disk about every 10 seconds https://bugs.launchpad.net/bugs/442443 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
