kern/148540: [geom] geom_sched breaks ata devices

[Marcin Wisnicki]

The following reply was made to PR kern/148540; it has been noted by GNATS.

From: Marcin Wisnicki <mwisnicki+freebsd at gmail.com>
To: "Andrey V. Elsukov" <bu7cher at yandex.ru>
Cc: bug-followup at freebsd.org, "Anton A. Barsukov" <iscsi at zesdid.com>, 
	Luigi Rizzo <luigi at freebsd.org>
Subject: Re: kern/148540: [geom] geom_sched breaks ata devices
Date: Wed, 14 Jul 2010 16:32:49 +0200

 2010/7/14 Andrey V. Elsukov <bu7cher at yandex.ru>:
 > Hi,
 >
 > can you test attached patch?
 >
 
 Forwarding ioctls works but I'm thinking that maybe gsched should
 insert itself as a sibling to DEV and reattach all non-DEV consumers
 (though that would mean you could bypass scheduler by directly opening
 device).
 Something like this:
 http://wisnia21.freeshell.org/f/freebsd/geom_sched-insertion.png