linux-kernel - Re: plain 2.6.21-rc5 (1) vs amanda (0)

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Date:	Wed, 4 Apr 2007 10:42:19 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Dave Dillow <dave@...dillows.org>,
	Gene Heskett <gene.heskett@...il.com>,
	linux-kernel@...r.kernel.org, ray-gmail@...rabbit.org,
	amanda-hackers@...nda.org, amanda-users@...nda.org
Subject: Re: plain 2.6.21-rc5 (1) vs amanda (0)

On Wed, 4 Apr 2007 10:45:30 +0200 Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Dave Dillow <dave@...dillows.org> wrote:
> 
> > > Then it is a matter of figuring out why the device number changed -- 
> > > I'm thinking it is device-mapper, but will look closer tomorrow.
> > 
> > This commit is the one that changed it:
> > 
> > commit fdf892be32d84a1745fa0aee5fc60517421b8038
> > Author: Andrew Morton <akpm@...l.org>
> > Date:   Mon Feb 12 00:51:44 2007 -0800
> > 
> >     [PATCH] register_blkdev(): don't hand out the LOCAL/EXPERIMENTAL majors
> >     
> >     As pointed out in http://bugzilla.kernel.org/show_bug.cgi?id=7922, 
> >     dynamic blockdev major allocation can hand out majors which LANANA 
> >     has defined as being for local/experimental use.
> 
> i dont think we should break backwards compatibility with a system that 
> has not changed any hardware. Andrew, should we revert this?

Well that's an odd thing for a backup program to be doing - there are any
number of things which could cause a dynamically-allocated major to change.

ho hum, yes, I guess it needs to go.
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