Re: [git patches] libata updates for 2.6.37

From: Tejun Heo
Date: Wed Dec 01 2010 - 06:17:52 EST


Hello,

On 11/30/2010 10:09 PM, Kyle McMartin wrote:
>> Ok, running it, I haven't seen the issue across three suspends... Will
>> update when it inevitably happens.
>
> [10273.011241] ata1.00: internal command failure: stat=0xef
> ehi_desc="irq_stat 0x00400001, PHY RDY changed"

Hmmm, so it's a timing problem. For some reason, a PHY event is being
reported after reset is complete which unfortunately gets reported
while DIPM command is in progress. Hmmm... what's broken is that the
PHY event happens after reset is complete. Can you please attach the
output of "lspci -nn" and "hdparm -I /dev/sda"? Looks a lot like a
timing issue. Maybe we'll have to add a delay somewhere. :-(

--
tejun
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/