Comment 3 for bug 347848

The problem started for me last week after upgrading from Ext3 to Ext4. I can almost always trigger it by launching Ktorrent by clicking a torrent file in Firefox, but I've had it freeze up during file transfers, file deletions, etc. What makes this really bad is that I am now on Ext4 and have experience at least 180 MB of data loss as a result of this bug. It seems that, with Ext4, the files at risk are those being accessed at the time of the freeze -- which makes even backing up files a scary proposition if the freeze were to take place in the middle of a backup.