Hello, On Wed, Jul 13, 2011 at 04:23:27PM +0000, Derry Bryson wrote: > [ 92.980476] ata1.02: IDENTIFY failed, irq_stat=0x60002 cerr=4 The controller is saying that it failed to transmit command FIS because PHYRDY state changed, so that is PHY flickering. Can you please bump the second debounce timing to 1000 (not only the first one but always) and see whether the failure pattern changes? Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html