Re: syslog: kernel: ata4: SATA link down (SStatus 0 SControl 310)
On Fri, 10 Feb 2012 14:15:38 -0800, T Elcor wrote:
> Any ideas what the following messages in the syslog mean (there are a
> lot of them) or how to fix it?
It could be several things: bad sata cables, a problem with the disk
controller, a kernel or module glitch, a BIOS fault...
> 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.
You can get what device is attached to that port with "dmesg | grep -i ata4".
> 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
JFYI, there's a similar bug report:
SATA devices get reset without real hardware failure
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=625922
Greetings,
--
Camaleón
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