linux-kernel - Re: exception Emask 0x0 SAct 0x1 / SErr 0x0 action 0x2 frozen

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Date:	Wed, 01 Oct 2008 11:09:18 -0400
From:	Bill Davidsen <davidsen@....com>
To:	Tejun Heo <tj@...nel.org>
CC:	Gwendal Grignou <gwendal@...gle.com>,
	Justin Piszcz <jpiszcz@...idpixels.com>,
	Brian Rademacher <rad@...files.net>, linux-ide@...r.kernel.org,
	linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org,
	Bruce Allen <ballen@...vity.phys.uwm.edu>
Subject: Re: exception Emask 0x0 SAct 0x1 / SErr 0x0 action 0x2 frozen

Tejun Heo wrote:
> Bill Davidsen wrote:
>   
>> Gwendal Grignou wrote:
>>     
>>> About ata1:0 problem, as reported in the bugzilla bug: I would try to
>>> disable NCQ to see if it helps. Your disks firmware might not fully
>>> support it.
>>>
>>> You can either add the parameter "libata.force=noncq" when loading
>>> your kernel, or set queue_depth to 1 for all the Seagate drives behind
>>> the Marvell MV88SX6081 controller.
>>>
>>> About ata5:0 , someone - in user space probably - is trying to do a
>>> SMART ENABLE operation, but the device ignores it. I don't know which
>>> device you are using, but I assume it does not support ATA SMART
>>> feature set. Timeout is an acceptable but not a nice way to answer, a
>>> cancel would have been better; check if there is a firmware upgrade
>>> for your device.
>>>   
>>>       
>> You certainly called the SMART issue, I was wondering why a new
>> distribution install on some older hardware was getting all the errors,
>> clearly the Fedora "smartd" doesn't check SMART capability before trying
>> to enable the feature. Oddly the drive on which I see this does reply to
>> SMART requests, so the firmware must be "semi-functional." Not a
>> problem, in my case the drive is just used for testing handling of hot
>> swap, and has no data of any value.
>>     
>
> Can you post full kernel log including the boot messages and the error
> messages?  Also, please attach the output of hdparm -I on the drive
> which fails the smart command.
>   

Belatedly, the drive was retired after I got thinking about it, I'm just 
calling it an old bad drive and leaving it at that. I'm not goinf to 
re-install a dubious 20GB drive, it's out of the hot-swap carrier, 
cleared with dban, and in the recycle bin. You seem to have far better 
examples of the issue, so I don't feel I would hold up progress. :-)
> (cc'ing Bruce, hi!) Bruce, this is the second report I see about drive
> timing out SMART ENABLE OPERATIONS.  Does anything ring a bell?
>
> Thanks.
>
>   


-- 
Bill Davidsen <davidsen@....com>
  "Woe unto the statesman who makes war without a reason that will still
  be valid when the war is over..." Otto von Bismark 


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