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Intermittent ata2.00 error: What does it mean?

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http://feedproxy.google.com – Excerpt from /var/log/messages: Code: ... <7>usb-storage: device scan complete <6>rtc_cmos 00:04: rtc core: registered rtc_cmos as rtc0 <6>rtc0: alarms up to one year, y3k <6>ppdev: user-space parallel port driver <6>Adding 3502160k swap on /dev/sdb2.  Priority:-1 extents:1 across:3502160k <6>EXT3 FS on sda7, internal journal <6>device-mapper: uevent: version 1.0.3 <6>device-mapper: ioctl: 4.13.0-ioctl (2007-10-18) initialised: [email protected] <3>ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 <3>ata2.00: BMDMA stat 0x64 <3>ata2.00: cmd c8/00:fc:4d:eb:f6/00:00:00:00:00/e0 tag 0 dma 129024 in <4>        res 51/84:00:4d:eb:f6/00:00:00:00:00/e0 Emask 0x10 (ATA bus error) <3>ata2.00: status: { DRDY ERR } <3>ata2.00: error: { ICRC ABRT } <6>ata2: soft resetting link <6>ata2.00: configured for UDMA/66 <6>ata2.01: configured for UDMA/33 <6>ata2: EH complete <5>sd 1:0:0:0: [sdb] 20010816 512-byte hardware sectors (10246 MB) <5>sd 1:0:0:0: [sdb] Write Protect is off <7>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 <5>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA <5>sd 1:0:0:0: [sdb] 20010816 512-byte hardware sectors (10246 MB) <5>sd 1:0:0:0: [sdb] Write Protect is off <7>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 <5>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA <3>ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 <3>ata2.00: BMDMA stat 0x64 <3>ata2.00: cmd c8/00:b4:4d:ec:06/00:00:00:00:00/e1 tag 0 dma 92160 in <4>        res 51/84:00:4d:ec:06/00:00:00:00:00/e1 Emask 0x10 (ATA bus error) <3>ata2.00: status: { DRDY ERR } <3>ata2.00: error: { ICRC ABRT } <6>ata2: soft resetting link <6>ata2.00: configuDocumentsred for UDMA/66 <6>ata2.01: configured for UDMA/33 <6>ata2: EH complete <5>sd 1:0:0:0: [sdb] 20010816 512-byte hardware sectors (10246 MB) <5>sd 1:0:0:0: [sdb] Write Protect is off <7>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 <5>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA <5>sd 1:0:0:0: [sdb] 20010816 512-byte hardware sectors (10246 MB) <5>sd 1:0:0:0: [sdb] Write Protect is off <7>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 <5>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA <3>ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 <3>ata2.00: BMDMA stat 0x64 <3>ata2.00: cmd c8/00:fc:4d:eb:22/00:00:00:00:00/e1 tag 0 dma 129024 in <4>        res 51/84:00:4d:eb:22/00:00:00:00:00/e1 Emask 0x10 (ATA bus error) <3>ata2.00: status: { DRDY ERR } <3>ata2.00: error: { ICRC ABRT } <6>ata2: soft resetting link <6>ata2.00: configured for UDMA/66 <6>ata2.01: configured for UDMA/33 <6>ata2: EH complete <4>ata2.00: limiting speed to UDMA/44:PIO4 <3>ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 <3>ata2.00: BMDMA stat 0x64 <3>ata2.00: cmd c8/00:fc:4d:eb:22/00:00:00:00:00/e1 tag 0 dma 129024 in <4>        res 51/84:00:4d:eb:22/00:00:00:00:00/e1 Emask 0x10 (ATA bus error) <3>ata2.00: status: { DRDY ERR } <3>ata2.00: error: { ICRC ABRT } <6>ata2: soft resetting link <6>ata2.00: configured for UDMA/44 <6>ata2.01: configured for UDMA/33 <6>ata2: EH complete <5>sd 1:0:0:0: [sdb] 20010816 512-byte hardware sectors (10246 MB) <5>sd 1:0:0:0: [sdb] Write Protect is off <7>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 <5>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA <5>sd 1:0:0:0: [sdb] 20010816 512-byte hardware sectors (10246 MB) <5>sd 1:0:0:0: [sdb] Write Protect is off <7>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 <5>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA <3>ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 <3>ata2.00: BMDMA stat 0x64 <3>ata2.00: cmd c8/00:10:39:51:17/00:00:00:00:00/e1 tag 0 dma 8192 in <4>        res 51/84:00:39:51:17/00:00:00:00:00/e1 Emask 0x10 (ATA bus error) <3>ata2.00: status: { DRDY ERR } <3>ata2.00: error: { ICRC ABRT } <6>ata2: soft resetting link <6>ata2.00: configured for UDMA/44 <6>ata2.01: configured for UDMA/33 <6>ata2: EH complete <5>sd 1:0:0:0: [sdb] 20010816 512-byte hardware sectors (10246 MB) <5>sd 1:0:0:0: [sdb] Write Protect is off <7>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 <5>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA <5>sd 1:0:0:0: [sdb] 20010816 512-byte hardware sectors (10246 MB) <5>sd 1:0:0:0: [sdb] Write Protect is off <7>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 <5>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA <6>loop: module loaded <6>kjournald starting.  Commit interval 5 seconds <6>EXT3 FS on sda1, internal journal This happens not very frequently but I don't even know what the box is trying to tell me. What should I do? Is it at all something to worry about? I'd be grateful for any explanation... Configuration of the box: 700 Mhz Athlon with sda 250 GB Maxtor sdc 10 GB Maxtor as swap sdd DVD burner. (HowTos)