PS I also included all of the other ext4 "cherry-picks" for 2.6.28 that hadn't made it into kernel-power thusfar, namely the May 2009 git commits labelled "for-stable-2.6.28". This means that issues like this one won't occur either (albeit, that one's less likely to occur on an N900 - I'm not aware of anyone who works with 10GiB files in /home on a regular basis - but you never know..)