exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 displayed in /var/log/messages

Issue

• The following message appears in /var/log/messages :

    Nov  7 22:10:18 system_name kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
    Nov  7 22:10:18 system_name kernel: ata2.00: irq_stat 0x40000001
    Nov  7 22:10:18 system_name kernel: ata2.00: cmd c8/00:98:5d:5a:88/00:00:00:00:00/e2 tag 0 dma 77824 in
    Nov  7 22:10:18 system_name kernel:          res 51/40:00:e3:5a:88/00:00:02:00:00/e2 Emask 0x9 (media error)
    Nov  7 22:10:18 system_name kernel: ata2.00: status: { DRDY ERR }
    Nov  7 22:10:18 system_name kernel: ata2.00: error: { UNC }
    Nov  7 22:10:19 system_name kernel: ata2.00: configured for UDMA/100
    Nov  7 22:10:19 system_name kernel: ata2: EH complete
    Nov  7 22:10:19 system_name kernel: SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB)
    Nov  7 22:10:19 system_name kernel: sdb: Write Protect is off

or:

    Nov  7 22:10:18 system_name kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
    Nov  7 22:10:18 system_name kernel: ata2.00: irq_stat 0x40000001
    Nov  7 22:10:18 system_name kernel: ata2.00: cmd c8/00:98:5d:5a:88/00:00:00:00:00/e2 tag 0 dma 77824 in
    Nov  7 22:10:18 system_name kernel:          res 51/40:00:e3:5a:88/00:00:02:00:00/e2 Emask 0x9 (media error)
    Nov  7 22:10:18 system_name kernel: ata2.00: status: { DRDY ERR }
    Nov  7 22:10:18 system_name kernel: ata2.00: error: { ABRT }
    Nov  7 22:10:19 system_name kernel: ata2.00: configured for UDMA/100
    Nov  7 22:10:19 system_name kernel: ata2: EH complete
    Nov  7 22:10:19 system_name kernel: SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB)
    Nov  7 22:10:19 system_name kernel: sdb: Write Protect is off