Comment 4 for bug 528981

I have very similar symptoms following a fresh install of Ubuntu 9.10 on a Dell Inspiron 1501, which I have installed once in a single ext3 partition and subsequently in two (/ and /home) ext3 partitions, with the same symptoms both times. I have records of an orphan node cleanup in logs (similar to "[ 6.974972] EXT3-fs: INFO: recovery required on readonly filesystem." described by another user at http://ubuntuforums.org/archive/index.php/t-1180159.html). There is no record of the events leading to the filesystem becoming readonly (obviously).

Possibly related is the bug report "ext4 journal error, remounted read-only after resume", https://bugs.launchpad.net/ubuntu/+source/linux/+bug/438379.