On Wed, Jul 31, 2013 at 1:11 PM, Thanasis <thana...@asyr.hopto.org> wrote:
> Early during booting phase, dmesg shows:
>
> [ 0.515651] ata6: SATA max UDMA/133 abar m8192@0xfdefe000 port
> 0xfdefe180 irq 17
> [ 0.833387] ata6: SATA link down (SStatus 0 SControl 300)
>
> But later, it reports lots like the following stanza:
>
> [164362.715469] ata6: exception Emask 0x10 SAct 0x0 SErr 0x4000000
> action 0xe frozen
> [164362.715474] ata6: irq_stat 0x00000040, connection status changed
> [164362.715479] ata6: SError: { DevExch }
> [164362.715490] ata6: hard resetting link
> [164363.433615] ata6: SATA link down (SStatus 0 SControl 300)
> [164363.446934] ata6: EH complete
>
> Is it related to a disk drive, and if so, is there a way to know which
> drive is on ata6?
>
> PS: There are two drives attached to the system, reported by dmesg like so:
> [ 0.872490] sd 0:0:0:0: [sda] 156301488 512-byte logical blocks:
> (80.0 GB/74.5 GiB)
> [ 0.874828] sd 1:0:0:0: [sdb] 488397168 512-byte logical blocks: (250
> GB/232 GiB)
>
If no disks are attached, I wonder if something is probing it?
I checked my dmesg and every time I plug in my eSATA enclosure, I see
this very similar message:
[156541.724580] ata7: exception Emask 0x10 SAct 0x0 SErr 0x4040000
action 0xe frozen
[156541.724587] ata7: irq_stat 0x00000040, connection status changed
[156541.724593] ata7: SError: { CommWake DevExch }
[156541.724604] ata7: hard resetting link
[156551.725559] ata7: softreset failed (device not ready)
[156551.725567] ata7: hard resetting link
(and then a bunch of lines initializing all of the disks in the enclosure).
