linux-kernel - Re: 2.6.22-rc3 hibernate(?) disables SMART on ide

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Date:	Mon, 04 Jun 2007 18:22:57 +0100
From:	David Greaves <david@...eaves.com>
To:	Mark Lord <liml@....ca>
Cc:	Tejun Heo <htejun@...il.com>,
	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>,
	IDE Linux <linux-ide@...r.kernel.org>,
	ballen@...vity.phys.uwm.edu
Subject: Re: 2.6.22-rc3 hibernate(?) disables SMART on ide

Mark Lord wrote:
> David Greaves wrote:
>> I have 2 ide disks. If I enable SMART and hibernate/suspend2disk,
>> SMART is
>> disabled when I resume.
> 
> Just a thought:  This *may* be fixable at the drive, with "hdparm -K1".

Thanks Mark, good idea.
Just tried and it didn't help though :(

in fact, hda gave
cu:~# hdparm -K1 /dev/hda

/dev/hda:
 setting drive keep features to 1 (on)
 HDIO_DRIVE_CMD(keepsettings) failed: Input/output error

and in dmesg:
hda: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
hda: drive_cmd: error=0x04 { DriveStatusError }
ide: failed opcode was: 0xef

The drive, FWIW, is:
=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda ATA II family
Device Model:     ST320420A
Serial Number:    3CL04RKY
Firmware Version: 3.21
User Capacity:    20,404,101,120 bytes
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   4
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Mon Jun  4 18:20:46 2007 BST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

David
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