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From: David Greaves <david@dgreaves.com>
To: Tejun Heo <htejun@gmail.com>
Cc: "'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>,
	IDE Linux <linux-ide@vger.kernel.org>,
	ballen@gravity.phys.uwm.edu
Subject: Re: 2.6.22-rc3 hibernate(?) disables SMART on ide
Date: Sat, 02 Jun 2007 22:53:14 +0100	[thread overview]
Message-ID: <4661E6CA.1080203@dgreaves.com> (raw)
In-Reply-To: <46613C53.8010205@gmail.com>

Tejun Heo wrote:
> David Greaves wrote:
>> I have 2 ide disks. If I enable SMART and hibernate/suspend2disk, SMART is
>> disabled when I resume.
>>
>> Same as in 2.6.21.1
> 
> According to the ATA standard, the device (drive) itself is responsible
> for preserving SMART enabled status over power cycles.  It seems your
> drive doesn't wanna do that.  I don't think mangling with SMART setup in
> the kernel is wise thing to do.  Bruce, any ideas?  Maybe hook smartd
> such that it gets suspend/resume events?

Sorry, FYI, I made the same mistake as when I reported the wol problem - I was
booting 2.6.21.1.

I am having problems with 2.6.22-rc3 but when it does suspend/resume I can
confirm that the problem is still there (of course).

However your comments still stand.

One unpleasant side effect is that I get

hda: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
hda: drive_cmd: error=0x04 { DriveStatusError }
ide: failed opcode was: 0xb0
hda: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
hda: drive_cmd: error=0x04 { DriveStatusError }
ide: failed opcode was: 0xb0
...
and
hdb: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
hdb: drive_cmd: error=0x04 { DriveStatusError }
ide: failed opcode was: 0xb0
hdb: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
hdb: drive_cmd: error=0x04 { DriveStatusError }
ide: failed opcode was: 0xb0
...

when the system comes back (induced from smartd I guess) until I do a:
 smartctl -son

David

  reply	other threads:[~2007-06-02 21:53 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-01 21:41 2.6.22-rc3 hibernate(?) disables SMART on ide David Greaves
2007-06-02  9:45 ` Tejun Heo
2007-06-02 21:53   ` David Greaves [this message]
2007-06-04 16:29     ` Mark Lord
2007-06-04 17:22       ` David Greaves
2007-06-05  4:17         ` Mark Lord
2007-06-05  9:03           ` David Greaves
2007-06-05 15:33             ` Mark Lord
     [not found] <8rnax-6XX-11@gated-at.bofh.it>
     [not found] ` <8rA7H-1B4-1@gated-at.bofh.it>
2007-06-02 21:27   ` Bodo Eggert
2007-06-02 22:18     ` Jeff Garzik
2007-06-02 22:22     ` Alan Cox

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