dmesg error

[Sudhakar]

Hi All, I've been getting this error message when I type dmesg:   ROM checksum self-test: passed (0x04f4518b).   Receiver lock-up workaround activated. Attached scsi generic sg1 at scsi0, channel 1, id 6, lun 0,  type 3 hda: irq timeout: status=0xd0 { Busy } hda: DMA disabled hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: ATAPI CD-ROM drive, 0kB Cache Uniform CD-ROM driver Revision: 3.12 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 VFS: Disk change detected on device ide0(3,0) hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 17464 isofs_read_super: bread failed, dev=03:00, iso_blknum=4366, block=8732 Uniform CD-ROM driver unloaded hda: status timeout: status=0x80 { Busy } hda: DMA disabled hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: ATAPI CD-ROM drive, 0kB Cache Uniform CD-ROM driver Revision: 3.12 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete request_module[ide-cd]: waitpid(13325,...) failed, errno 512 hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 VFS: Disk change detected on device ide0(3,0) hda: status timeout: status=0x80 { Busy } hda: drive not ready for command hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } hda: ATAPI reset complete hda: irq timeout: status=0x80 { Busy } end_request: I/O error, dev 03:00 (hda), sector 0 Uniform CD-ROM driver unloaded IMy version details are  RH Linux 6.2 with kernel 2.4.16. I've seen my /var/log/messages but I do not anything unusual.I'd appreciate what could be the reason for these messages.   Thanks,   Peram