Comment 109 for bug 453579

I also had this issue but I can't really nail it down. The explanation that it has only something to do with Kernel 2.6.32-rc* makes sense. I used it several times on my two systems. I got different md5 for the same file and if I played a video which was affected the player stops and the hard disks runs all the time and the systems hangs for a minute or more. It looks like a part was missing and the driver was searching for it.

I even shot down my whole testing system. I have a small testing partition to test Linux outside the VM. After some xorg edgers installation and restart I got an fsck problem which asks for confirmation, some inode problem. After confirmation it asks again several times so I run it with -y which delete a lot of files. Afterwards the system didn't boot anymore.
I have installed grub on the partition instead of the MBR, maybe that resulted under some special circumstances in this problem but I have done this since a long time and never had problem with it.

So actually using of 2.6.32 makes more sense since I use ext4 since quite some time. I haven't had a problem since sticking with the default Kernel but this problems doesn't just pop up. You don't realize that a huge file has changed until actually checking/using the whole thing.