linux-kernel - Re: [GIT PULL] kdbus for 4.1-rc1

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Date:	Thu, 30 Apr 2015 10:15:19 +1000
From:	Dave Airlie <airlied@...il.com>
To:	David Lang <david@...g.hm>
Cc:	"Theodore Ts'o" <tytso@....edu>, John Stoffel <john@...ffel.org>,
	Harald Hoyer <harald@...hat.com>,
	Richard Weinberger <richard.weinberger@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] kdbus for 4.1-rc1

On 30 April 2015 at 10:05, David Lang <david@...g.hm> wrote:
> On Wed, 29 Apr 2015, Theodore Ts'o wrote:
>
>> On Wed, Apr 29, 2015 at 12:26:59PM -0400, John Stoffel wrote:
>>>
>>> If your customers wnat this feature, you're more than welcome to fork
>>> the kernel and support it yourself.  Oh wait... Redhat does that
>>> already.  So what's the problem?   Just put it into RHEL (which I use
>>> I admit, along with Debian/Mint) and be done with it.
>>
>>
>> Harald,
>>
>> If you make the RHEL initramfs harder to debug in the field, I will
>> await the time when some Red Hat field engineers will need to do the
>> same sort of thing I have had to do in the field, and be amused when
>> they want to shake you very warmly by the throat.  :-)
>>
>> Seriously, keep things as simple as possible in the initramfs; don't
>> use complicated bus protocols; that way lies madness.  Enterprise
>> systems aren't constantly booting (or they shouldn't be, if your
>> kernels are sufficiently reliable :-), so trying to optimize for an
>> extra 2 or 3 seconds worth of boot time really, REALLY isn't worth it.
>
>
> I've had Enterprise systems where I could hit power on two boxes, and finish
> the OS install on one before the other has even finished POST and look for
> the boot media. I did this 5 years ago, before the "let's speed up boot"
> push started.
>
> Admittedly, this wasn't a stock distro boot/install, it was my own optimized
> one, but it also wasn't as optimized and automated as it could have been
> (several points where the installer needed to pick items from a menu and
> enter values)
>

You guys might have missed this new industry trend, I think they call
it virtualisation,

I hear it's going to be big, you might want to look into it.

Dave.
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