From: "Michel Dänzer" <michel@daenzer.net>
To: Lauri Kasanen <cand@gmx.com>
Cc: dri-devel@lists.freedesktop.org
Subject: Re: Required backwards support level?
Date: Mon, 07 Apr 2014 11:26:39 +0900 [thread overview]
Message-ID: <1396837599.8090.109.camel@thor.local> (raw)
In-Reply-To: <20140406152616.a7b22a4e.cand@gmx.com>
On Son, 2014-04-06 at 15:26 +0300, Lauri Kasanen wrote:
> Hi,
>
> Obviously old userspace + new kernel combo needs to be supported. But
> I'm not so sure about a mixed case, does old userspace + new userspace
> need to be supported to run at the same time?
>
> For example, a new 64-bit mesa+libdrm and a 32-bit old set, both
> running apps at the same time.
>
> Or is it acceptable to assume that once a new userspace has been run,
> an old one won't be run for this boot?
I'm afraid not. Trivial counter-example: Build Git snapshot from after
your changes, hit regression (not necessarily related to your changes),
run git bisect involving snapshots from before your changes.
--
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Mesa and X developer
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prev parent reply other threads:[~2014-04-07 2:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-06 12:26 Required backwards support level? Lauri Kasanen
2014-04-06 14:53 ` Rob Clark
2014-04-06 17:28 ` Lauri Kasanen
2014-04-06 17:58 ` Daniel Vetter
2014-04-07 7:28 ` Lauri Kasanen
2014-04-07 2:26 ` Michel Dänzer [this message]
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