Comment 33 for bug 338645

That really looks like a duplicate of 330824. Martin has a ext4 filesystem, freeze happens randomly and 2.6.29 kernel fixes the issue (in the same way then 2.6.30 does not have this bug in karmic).

Martin : it would be interesting if you can delete huge amount of files and report if the bug can be reproduced while deleting files. If the bug can be reproduced in that way, can you verify if 2.6.29 or 2.6.30 fixes the bug for you too? Most of time, this was the easiest way to reproduce the bug which does not seem to happen on any hardware.