As soon as Gnome started it starts polluting dmesg buffer. Use any IDE workstation and while no CD is in CDROM you get a new message VFS: Disk change detected on device ide1(22,0) VFS: Disk change detected on device ide1(22,0) VFS: Disk change detected on device ide1(22,0) VFS: Disk change detected on device ide1(22,0) about every two seconds. Use dmesg and you will see these messages. When you put a CD to CDROM the message of above stops and you get VFS: Disk change detected on device ide1(22,0) ISO 9660 Extensions: Microsoft Joliet Level 1 ISO 9660 Extensions: RRIP_1991A no dmesg buffer polluting any more. The problem problem exists only when no CD is in the CDROM when GNOME is running. use dmesg command to see messages of above.
This is magicdev. Turning it off is one cure (it just automounts cds in gnome). Reassigned
I don't know of a way of fixing this within magicdev. See Bug #6006 for extensive commentary. (Until someone tells me a good reason for the printk(), I would consider it a kernel misfeature that it is printing out these messsages, leaving aside the misdetection of media changes.) *** This bug has been marked as a duplicate of 6006 ***