Ubuntu 11.10 зависает через два-три дня работы

Mar 17 06:49:32 monitoring-1 kernel: [283809.552305] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Mar 17 06:49:32 monitoring-1 kernel: [283809.557055] ata1.00: configured for UDMA/33
Mar 17 06:49:32 monitoring-1 kernel: [283809.572316] ata1: EH complete
Mar 17 06:52:03 monitoring-1 kernel: [283960.607969] ata1: exception Emask 0x10 SAct 0x0 SErr 0x10200 action 0xe frozen
Mar 17 06:52:03 monitoring-1 kernel: [283960.607984] ata1: irq_stat 0x00400000, PHY RDY changed
Mar 17 06:52:03 monitoring-1 kernel: [283960.607995] ata1: SError: { Persist PHYRdyChg }
Mar 17 06:52:03 monitoring-1 kernel: [283960.608092] ata1: hard resetting link
Mar 17 06:52:05 monitoring-1 kernel: [283962.836280] ata1: COMRESET failed (errno=-32)
Mar 17 06:52:05 monitoring-1 kernel: [283962.836300] ata1: reset failed (errno=-32), retrying in 8 secs