* Walter Garcia-Fontes [02/03/07 15:52]: > I have a DVD R/W unit and from time to time it freezes. This is a Dell > Precision 690 with Fedora Core 5, latest kernel. > > At bootup I get some error messages that I attach > (/var/log/dmesg). The systema allocates /dev/hda to the cdrom (the > hard disk partitions get sda, sdb, ...). The lines referring to the > unit in /var/log/dmesg are: > > hda: command error: status=0x51 { DriveReady SeekComplete Error } > hda: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 } > ide: failed opcode was: unknown > ATAPI device hda: > Error: Illegal request -- (Sense key=0x05) > Illegal mode for this track or incompatible medium -- (asc=0x64, ascq=0x00) > The failed "Read 10" packet command was: > "28 00 00 00 00 00 00 00 08 00 00 00 00 00 00 00 " > end_request: I/O error, dev hda, sector 0 > Buffer I/O error on device hda, logical block 6 > Buffer I/O error on device hda, logical block 7 > hda: command error: status=0x51 { DriveReady SeekComplete Error } It turned out that it was a faulty DVD/CD RW unit. I change it and these messages dissapeared. It confused me because it would not fail completely, just get slower and freeze different pieces of software (grip, totem, etc). -- Walter Garcia-Fontes Barcelona