syslog: kernel: ata4: SATA link down (SStatus 0 SControl 310)

[T Elcor <telcor@yahoo.com>]

Hi,

Any ideas what the following messages in the syslog mean (there are a lot of them) or how to fix it? If the messages are related to a hard disk problem, how to determine which one - there are several HDs in that box and the system seems to be working OK.

Thanks


Feb 10 16:59:40 testbox kernel: [ 1179.840079] ata4: irq_stat 0x00000040, connection status changed
Feb 10 16:59:40 testbox kernel: [ 1179.840082] ata4: SError: { CommWake 10B8B DevExch }
Feb 10 16:59:40 testbox kernel: [ 1179.840089] ata4: limiting SATA link speed to 1.5 Gbps
Feb 10 16:59:40 testbox kernel: [ 1179.840092] ata4: hard resetting link
Feb 10 16:59:41 testbox kernel: [ 1180.676082] ata4: SATA link down (SStatus 0 SControl 310)
Feb 10 16:59:41 testbox kernel: [ 1180.692071] ata4: EH complete
Feb 10 16:59:41 testbox kernel: [ 1180.727663] ata4: exception Emask 0x10 SAct 0x0 SErr 0x40c0000 action 0xe f