From: Jeff Garzik <jgarzik@pobox.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: David Greaves <david@dgreaves.com>, David Chinner <dgc@sgi.com>,
Tejun Heo <htejun@gmail.com>, "Rafael J. Wysocki" <rjw@sisk.pl>,
xfs@oss.sgi.com,
"'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>,
linux-pm <linux-pm@lists.osdl.org>, Neil Brown <neilb@suse.de>
Subject: Re: 2.6.22-rc3 hibernate(?) fails totally - regression (xfs on raid6)
Date: Wed, 13 Jun 2007 17:22:55 -0400 [thread overview]
Message-ID: <4670602F.9000908@pobox.com> (raw)
In-Reply-To: <alpine.LFD.0.98.0706131344550.14121@woody.linux-foundation.org>
Linus Torvalds wrote:
> Ok, good. So the bug is apparently in the generic SCSI layer start/stop
> handling. I'm not entirely surprised, most people would never have
> triggered it (I _think_ it's disabled by default for all devices, and that
> the libata-scsi.c change was literally the first thing to ever enable it
> by default for anything!)
I haven't looked at this yet, but wanted to confirm your assessment
here: libata was indeed the first (and still only?) user of this code path.
Since some SCSI devices may not be owned by the host computer, in the
power management sense, we don't want to turn that on for all SCSI
devices. Otherwise you wind up powering off a device in another building :)
This is basically the libata suspend/resume path, even though bits touch
generic SCSI.
Jeff
next prev parent reply other threads:[~2007-06-13 21:22 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <46608E3F.4060201@dgreaves.com>
2007-06-01 21:42 ` 2.6.22-rc3 hibernate(?) disables skge wol Rafael J. Wysocki
2007-06-01 22:37 ` 2.6.22-rc3 hibernate(?) fails totally - regression David Greaves
2007-06-01 23:22 ` Rafael J. Wysocki
2007-06-02 22:31 ` David Greaves
2007-06-02 22:46 ` Linus Torvalds
2007-06-03 15:03 ` David Greaves
2007-06-06 8:33 ` Tejun Heo
2007-06-06 10:18 ` [PATCH] sata_promise: use TF interface for polling NODATA commands Tejun Heo
2007-06-06 10:19 ` Tejun Heo
2007-06-06 10:39 ` 2.6.22-rc3 hibernate(?) fails totally - regression (xfs on raid6) David Greaves
2007-06-07 5:53 ` Tejun Heo
2007-06-07 10:30 ` David Greaves
2007-06-07 11:07 ` David Chinner
2007-06-07 13:59 ` David Greaves
2007-06-07 22:28 ` David Chinner
2007-06-08 19:09 ` David Greaves
2007-06-12 18:43 ` Linus Torvalds
2007-06-13 11:16 ` David Greaves
2007-06-13 21:04 ` Linus Torvalds
2007-06-13 21:22 ` Jeff Garzik [this message]
2007-06-13 22:02 ` David Greaves
2007-06-13 22:12 ` Linus Torvalds
2007-06-13 23:15 ` Rafael J. Wysocki
2007-06-14 14:21 ` Tejun Heo
2007-06-14 15:10 ` Tejun Heo
2007-06-15 9:42 ` [PATCH] block: always requeue !fs requests at the front Tejun Heo
2007-06-15 11:05 ` Jens Axboe
2007-06-15 11:17 ` Tejun Heo
2007-06-15 11:21 ` Jens Axboe
2007-06-15 15:08 ` Jeff Garzik
2007-06-16 19:54 ` Christoph Hellwig
2007-06-17 7:29 ` Jens Axboe
2007-06-17 8:03 ` Tejun Heo
2007-06-15 13:58 ` David Greaves
2007-06-14 15:19 ` 2.6.22-rc3 hibernate(?) fails totally - regression (xfs on raid6) David Greaves
2007-06-14 0:28 ` David Chinner
2007-06-12 12:31 ` David Greaves
2007-06-10 18:43 ` Pavel Machek
2007-06-12 18:00 ` David Greaves
2007-06-12 21:31 ` Pavel Machek
2007-06-07 13:45 ` Duane Griffin
2007-06-07 14:00 ` David Greaves
2007-06-07 14:05 ` Tejun Heo
2007-06-07 14:36 ` Mark Lord
2007-06-07 15:20 ` David Greaves
2007-06-07 16:58 ` Rafael J. Wysocki
2007-06-07 20:12 ` Pavel Machek
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