From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tim Bird Subject: Re: mainlining min-configs... Date: Tue, 10 Jun 2008 11:18:30 -0700 Message-ID: <484EC576.5080302@am.sony.com> References: <48447615.5050806@am.sony.com> <20080604194002.GF4189@cs181133002.pp.htv.fi> <4849CCA3.7040102@am.sony.com> <200806062329.54019.rob@landley.net> <484DDAD9.2000306@am.sony.com> <20080610083610.GC1987@cs181133002.pp.htv.fi> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20080610083610.GC1987@cs181133002.pp.htv.fi> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Adrian Bunk Cc: Rob Landley , linux-tiny , linux-embedded , linux kernel Adrian Bunk wrote: > But if you want to discover size change with minimal configs early you > anyway have to both: > - constantly keep your configs in shape so that they are both minimal > for some set of hardware support and features and > - investigate for any size changes what caused them > (experience has shown that putting information on a webpage doesn't > fix problems - even for compile errors). Amen to that last point! > > You need both, and ideally constantly done by the same person against > Linus' tree, -next and -mm. > > Where to get your minimal configs from at the start is just a small > thing at the beginning - don't underestimate the required manual work > that will have to be done each week. This is probably why I haven't signed up for this myself previously. I'd be interested in finding out the rate at which defconfigs bitrot in mainline. My experience is that usually a 'make oldconfig' will produce something usable. But maybe that wouldn't be as effective with a minconfig? Maybe I'll collect some minconfigs, and try maintaining them in my own tree for a few releases to see how onerous it is... The problem is that I can only reasonably do this for boards I have, so there'd only be a few. But maybe that'd be enough. They would really only be meant as examples. -- Tim ============================= Tim Bird Architecture Group Chair, CE Linux Forum Senior Staff Engineer, Sony Corporation of America =============================