linux-kernel - Re: ata1: soft resetting port

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Message-ID: <468C5591.1040202@gmail.com>
Date:	Thu, 05 Jul 2007 11:21:05 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Soeren Sonnenburg <kernel@....de>
CC:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linux-ide <linux-ide@...r.kernel.org>
Subject: Re: ata1: soft resetting port

Soeren Sonnenburg wrote:
>>> pci_express 0000:00:1c.2:pcie03: resuming
>>> sr 0:0:0:0: resuming
>>> sd 2:0:1:0: resuming
>>> sd 2:0:1:0: [sda] Starting disk
>>> ata1.00: configured for UDMA/33
>>> ata3.01: revalidation failed (errno=-2)
>>> ata3: failed to recover some devices, retrying in 5 secs
>>> ata3.01: configured for UDMA/133
>> Hmmm... That's NODEV_HINT being triggered after resume.  Probably the
>> device isn't ready to respond yet at that point.  How reproducible is
>> the problem?
> 
> quite reproducible:
> 
> $ dmesg | grep 'revalidation failed' | wc -l
> 4

Hmmm... Thanks.  I think the best we can do is 1. don't wait for disk
revalidation during resume 2. retry faster.  Just in case, please post
the result of "hdparm -I /dev/sdX" where sdX is the device at ata3.01.

-- 
tejun
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