linux-kernel - Re: Linux 4.0-rc1 out..

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Date:	Tue, 24 Feb 2015 03:34:56 +0100
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Christian Borntraeger <borntraeger@...ibm.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	jseward@....org
Subject: Re: Linux 4.0-rc1 out..

On Mon, 2015-02-23 at 16:43 +0100, Christian Borntraeger wrote:
> Am 23.02.2015 um 04:06 schrieb Linus Torvalds:
> > .. let's see how much, if anything, breaks due to the version number.
> > Probably less than during the 3.0 timeframe, but I can just imagine
> > somebody checking for meaningful versions.
> > 
> > Because the people have spoken, and while most of it was complete
> > gibberish, numbers don't lie. People preferred 4.0, and 4.0 it shall
> > be. Unless somebody can come up with a good argument against it.
> 
> The only argument that I can come up with is "we do not break userspace".
> For example there is this "gem" in configure.ac of valgrind:
> 
> 
>         case "${kernel}" in
>              2.6.*|3.*)
>                     AC_MSG_RESULT([2.6.x/3.x family (${kernel})])
>                     AC_DEFINE([KERNEL_2_6], 1, [Define to 1 if you're using Linux 2.6.x or Linux 3.x])
>                     ;;
> 
>              2.4.*)
>                     AC_MSG_RESULT([2.4 family (${kernel})])
>                     AC_DEFINE([KERNEL_2_4], 1, [Define to 1 if you're using Linux 2.4.x])
>                     ;;
> 
>              *)
>                     AC_MSG_RESULT([unsupported (${kernel})])
>                     AC_MSG_ERROR([Valgrind works on kernels 2.4, 2.6])
>                     ;;


Heh, if this is an argument, we have one hell of a lot of reverting to
do :)   Crash for example breaks at much higher resolution, and indeed
just broke yet again.  Tough titty for userspace methinks.

	-Mike  

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