SATA resetting, WTF ?!

[<briand@aracnet.com>]

Hi all,

I could actually hear this happening to the hard disk - but thought it was my imagination.

Linux windy 2.6.32-5-amd64 #1 SMP Wed May 18 23:13:22 UTC 2011 x86_64 GNU/Linux

[1289040.878979] ata2: irq_stat 0x00000040, connection status changed
[1289040.878982] ata2: SError: { DevExch }
[1289040.878986] ata2: limiting SATA link speed to 1.5 Gbps
[1289040.878989] ata2: hard resetting link
[1289043.264515] ata2: COMRESET failed (errno=-32)
[1289043.264520] ata2: reset failed (errno=-32), retrying in 8 secs
[1289050.876509] ata2: hard resetting link
[1289053.488513] ata2: COMRESET failed (errno=-32)
[1289053.488518] ata2: reset failed (errno=-32), retrying in 8 secs
[1289060.876509] ata2: hard resetting link
[1289063.168016] ata2: SATA link down (SStatus 1 SControl 310)
[1289063.168024] ata2: EH complete
[1289063.168613] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4000000 action 0xe frozen

anybody have any ideas ?

disk seems to be ok, not making any funny noises - well unless it resets.  I can actually hear it !

I seriously doubt this is the MB or disk.  This behavior started with testing...

Brian