I grabbed the upstream kernel from that link, and the bug still seems to be affecting me. Below is the output similar to post four shoing the jbd2 activity. The system was idle over that period, save running the command iotop -obtqqq | grep jbd2.
kyle@lal:~$ uname -a Linux lal 3.8.0-030800rc3-generic #201301092235 SMP Thu Jan 10 03:36:25 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux 10:49:26 1174 be/3 root 0.00 B/s 27.14 K/s 0.00 % 2.86 % [jbd2/dm-2-8] 10:49:32 1174 be/3 root 0.00 B/s 23.24 K/s 0.00 % 3.72 % [jbd2/dm-2-8] 10:49:39 1174 be/3 root 0.00 B/s 31.21 K/s 0.00 % 3.58 % [jbd2/dm-2-8] 10:49:48 431 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.14 % [jbd2/dm-0-8] 10:49:58 431 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.14 % [jbd2/dm-0-8] 10:50:32 1174 be/3 root 0.00 B/s 23.27 K/s 0.00 % 3.81 % [jbd2/dm-2-8] 10:50:37 431 be/3 root 0.00 B/s 115.51 K/s 0.00 % 0.40 % [jbd2/dm-0-8] 10:50:38 1174 be/3 root 0.00 B/s 23.19 K/s 0.00 % 2.67 % [jbd2/dm-2-8] 10:50:46 431 be/3 root 0.00 B/s 233.44 K/s 0.00 % 4.81 % [jbd2/dm-0-8] 10:50:48 1174 be/3 root 0.00 B/s 11.64 K/s 0.00 % 2.94 % [jbd2/dm-2-8] 10:50:51 431 be/3 root 0.00 B/s 19.25 K/s 0.00 % 0.32 % [jbd2/dm-0-8] 10:50:54 431 be/3 root 0.00 B/s 11.67 K/s 0.00 % 0.27 % [jbd2/dm-0-8] 10:51:01 431 be/3 root 0.00 B/s 34.81 K/s 0.00 % 0.56 % [jbd2/dm-0-8] 10:51:02 431 be/3 root 0.00 B/s 7.74 K/s 0.00 % 0.55 % [jbd2/dm-0-8] 10:51:03 1174 be/3 root 0.00 B/s 53.80 K/s 0.00 % 12.99 % [jbd2/dm-2-8] 10:51:03 431 be/3 root 0.00 B/s 3.10 M/s 0.00 % 6.33 % [jbd2/dm-0-8] 10:51:04 431 be/3 root 0.00 B/s 31.22 K/s 0.00 % 6.16 % [jbd2/dm-0-8] 10:51:09 1174 be/3 root 0.00 B/s 3.88 K/s 0.00 % 3.08 % [jbd2/dm-2-8] 10:51:10 431 be/3 root 0.00 B/s 50.42 K/s 0.00 % 0.29 % [jbd2/dm-0-8] 10:51:17 1174 be/3 root 0.00 B/s 15.50 K/s 0.00 % 3.65 % [jbd2/dm-2-8] 10:51:18 431 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.32 % [jbd2/dm-0-8] 10:51:23 431 be/3 root 0.00 B/s 23.27 K/s 0.00 % 0.42 % [jbd2/dm-0-8] 10:51:25 1174 be/3 root 0.00 B/s 0.00 B/s 0.00 % 1.54 % [jbd2/dm-2-8] 10:51:29 431 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.28 % [jbd2/dm-0-8] 10:51:34 1174 be/3 root 0.00 B/s 3.87 K/s 0.00 % 2.67 % [jbd2/dm-2-8] 10:51:35 431 be/3 root 0.00 B/s 11.62 K/s 0.00 % 0.27 % [jbd2/dm-0-8] 10:51:40 431 be/3 root 0.00 B/s 3.87 K/s 0.00 % 0.29 % [jbd2/dm-0-8] 10:51:44 1174 be/3 root 0.00 B/s 34.80 K/s 0.00 % 7.47 % [jbd2/dm-2-8] 10:51:46 431 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.27 % [jbd2/dm-0-8] 10:51:51 1174 be/3 root 0.00 B/s 0.00 B/s 0.00 % 2.64 % [jbd2/dm-2-8] 10:51:53 431 be/3 root 0.00 B/s 7.80 K/s 0.00 % 0.28 % [jbd2/dm-0-8] 10:51:58 431 be/3 root 0.00 B/s 11.71 K/s 0.00 % 0.29 % [jbd2/dm-0-8] 10:52:04 1174 be/3 root 0.00 B/s 58.05 K/s 0.00 % 28.84 % [jbd2/dm-2-8] 10:52:04 431 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.34 % [jbd2/dm-0-8] 10:52:06 1174 be/3 root 0.00 B/s 23.37 K/s 0.00 % 4.95 % [jbd2/dm-2-8] 10:52:08 1174 be/3 root 0.00 B/s 15.45 K/s 0.00 % 11.77 % [jbd2/dm-2-8] 10:52:09 1174 be/3 root 0.00 B/s 61.86 K/s 0.00 % 73.09 % [jbd2/dm-2-8] 10:52:10 1174 be/3 root 0.00 B/s 0.00 B/s 0.00 % 57.10 % [jbd2/dm-2-8] 10:52:10 431 be/3 root 0.00 B/s 11.66 K/s 0.00 % 0.28 % [jbd2/dm-0-8] 10:52:15 1174 be/3 root 0.00 B/s 50.32 K/s 0.00 % 4.87 % [jbd2/dm-2-8] 10:52:15 431 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.61 % [jbd2/dm-0-8] 10:52:17 1174 be/3 root 0.00 B/s 66.07 K/s 0.00 % 4.02 % [jbd2/dm-2-8] 10:52:22 431 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.29 % [jbd2/dm-0-8] 10:52:25 1174 be/3 root 0.00 B/s 11.54 K/s 0.00 % 14.26 % [jbd2/dm-2-8] 10:52:26 431 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.04 % [jbd2/dm-0-8] 10:52:27 431 be/3 root 0.00 B/s 26.90 K/s 0.00 % 0.24 % [jbd2/dm-0-8] 10:52:29 2635 be/3 root 0.00 B/s 3.87 K/s 0.00 % 0.20 % [jbd2/dm-3-8] 10:52:30 1174 be/3 root 0.00 B/s 88.30 K/s 0.00 % 7.62 % [jbd2/dm-2-8] 10:52:32 431 be/3 root 0.00 B/s 11.62 K/s 0.00 % 0.25 % [jbd2/dm-0-8] 10:52:38 1174 be/3 root 0.00 B/s 15.55 K/s 0.00 % 2.50 % [jbd2/dm-2-8] 10:52:38 431 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.28 % [jbd2/dm-0-8] 10:52:44 431 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.27 % [jbd2/dm-0-8] 10:52:46 1174 be/3 root 0.00 B/s 7.77 K/s 0.00 % 18.13 % [jbd2/dm-2-8] ** Tags added: kernel-bug-exists-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1099600 Title: jbd2/dm-* constant io, filling hard disk To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1099600/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs