On 2012-04-24 18:49, Molnár Bence wrote: [...]

Well, i already checked this, and its not mounted based on this. I also checked it with fuser, killed the showed process number.

Indeed, it seems like the dialog system did not correctly release the disk's file descriptor after issuing some optimizing ioctls. This is now fixed in version 20120424 Regards, Alain