linux-kernel - Re: Uses of Linux backports in the industry

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Message-ID: <558A73D9.3060703@melag.de>
Date:	Wed, 24 Jun 2015 11:09:45 +0200
From:	"Enrico Weigelt, metux IT consult" <weigelt@...ag.de>
To:	Richard Weinberger <richard.weinberger@...il.com>
CC:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>,
	"backports@...r.kernel.org" <backports@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: Uses of Linux backports in the industry

Am 29.05.2015 um 17:01 schrieb Richard Weinberger:

Hi,

> On Fri, May 29, 2015 at 4:53 PM, Enrico Weigelt, metux IT consult
> <weigelt@...ag.de> wrote:
>> Am 29.05.2015 um 04:54 schrieb Luis R. Rodriguez:
>> Actually, I really wonder why folks are sticking to ancient kernels on
>> newer hardware.
>
> Enterprise distribution kernels.

hmm, by "enterprise" you mean distros like RHEL, which even can't get a
dist-upgrade right ? ;-p

In that case, it's the duty of the dist vendor, to port their (often
horrible) vendor patches. I wouldn't run those distros bare-metal
anyways, so the need for new kernel features (eg. drivers) wouldn't
that huge.

 > Or "special" kernels like PREEMPT_RT.

PREEMPT_RT is pretty close to upstream.
There're at 4.0.5 right now, and 4.1 is still very fresh.

If I'd have the need for it (actually was already considering it for our
project), I'd rather port it to 4.1. (as our BSP already is at 4.1)

> Sometimes the vendor BSP is that horrid that a customer cannot afford
> to forward port it but wants recent stuff. So you need to backport...

By "vendor BSP", you perhaps mean certain soc or board manufacturer
stuff ? Just dont use it, it's usually horrible crap anyways. These
usually are fire-and-forget showcases, not suited for production use.
Waste of resources.


cu
--
Enrico Weigelt, metux IT consult
+49-151-27565287
MELAG Medizintechnik oHG Sitz Berlin Registergericht AG Charlottenburg HRA 21333 B

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