'Disk Sleep' Problem

[Petrus de Calguarium]

Petrus de Calguarium wrote:

> I will check into that.

I examined /var/log/messages and I see some strange stuff:

Apr 25 10:16:29 localhost kernel: ata3.00: failed command: READ DMA
Apr 25 10:16:29 localhost kernel: ata3.00: cmd 
c8/00:e0:c2:b1:b6/00:00:00:00:00/e4 tag 0 dma 114688 in
Apr 25 10:16:29 localhost kernel:         res 
51/84:e0:c2:b1:b6/00:00:00:00:00/e4 Emask 0x30 (host bus error)
Apr 25 10:16:29 localhost kernel: ata3.00: status: { DRDY ERR }
Apr 25 10:16:29 localhost kernel: ata3.00: error: { ICRC ABRT }
Apr 25 10:16:29 localhost kernel: ata3.00: hard resetting link
Apr 25 10:16:29 localhost kernel: ata3.01: hard resetting link
Apr 25 10:16:30 localhost kernel: ata3.00: SATA link up 3.0 Gbps (SStatus 123 
SControl 300)
Apr 25 10:16:30 localhost kernel: ata3.01: SATA link down (SStatus 4 SControl 
300)
Apr 25 10:16:30 localhost kernel: ata3.00: configured for UDMA/133
Apr 25 10:16:30 localhost kernel: ata3: EH complete
Apr 25 10:16:36 localhost kernel: ata3.00: limiting SATA link speed to 1.5 
Gbps
Apr 25 10:16:36 localhost kernel: ata3.00: exception Emask 0x10 SAct 0x0 SErr 
0x280100 action 0x6
Apr 25 10:16:36 localhost kernel: ata3.00: BMDMA stat 0x26
Apr 25 10:16:36 localhost kernel: ata3.00: SError: { UnrecovData 10B8B BadCRC 
}

This occurs dozens and dozens of times. It looks like a disk error. But after 
the reboot and disabling Power Devil, there is not one occurrence of the 
above errors in the new log. Yet, Power Devil should only be running once KDE 
starts, shouldn't it? Or does it with the booting of the computer?