Date: Thu, 2 May 2013 09:06:33 +0200
From: Ingo Molnar <mingo@kernel.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Borislav Petkov <bp@alien8.de>, David Rientjes <rientjes@google.com>,
        linux-kernel@vger.kernel.org, Pekka Enberg <penberg@kernel.org>,
        levinsasha928@gmail.com, mtosatti@redhat.com, tglx@linutronix.de,
        Borislav Petkov <bp@suse.de>, fengguang.wu@intel.com,
        linux-tip-commits@vger.kernel.org
Subject: Re: [tip:x86/urgent] x86/kconfig:  Add a Kconfig shortcut for
 building working KVM guest kernels
Message-ID: <20130502070633.GA26361@gmail.com>
References: <20130501203500.GC4466@pd.tnic>
 <alpine.DEB.2.02.1305011358500.19189@chino.kir.corp.google.com>
 <20130501211011.GD4466@pd.tnic>
 <alpine.DEB.2.02.1305011419020.20298@chino.kir.corp.google.com>
 <20130501215604.GA15623@pd.tnic>
 <alpine.DEB.2.02.1305011503200.3267@chino.kir.corp.google.com>
 <20130501222850.GB15623@pd.tnic>
 <alpine.DEB.2.02.1305011531320.8804@chino.kir.corp.google.com>
 <20130501230254.GC15623@pd.tnic>
 <51819F6C.1030201@zytor.com>
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* H. Peter Anvin <hpa@zytor.com> wrote:

> On 05/01/2013 04:02 PM, Borislav Petkov wrote:
> > On Wed, May 01, 2013 at 03:37:28PM -0700, David Rientjes wrote:
> >> It means your patch is incomplete.
> > 
> > I'll gladly test and ack a patch which makes it complete.
> > 
> > Simple exercises in rhetoric about what does and what doesn't make 
> > sense means a rat's ass to me. You need to show me a *real* use case 
> > which you *actually* hit and this patch breaks it.
> 
> The fundamental problem is that "select" is broken and doesn't track 
> dependencies of things selected.

The way I've been solving it in a similar usecase was to select the 
required options - plus its dependencies, manually.

That should be possible here as well, driven by any weird randconfig build 
failures that get found. Such a set of selects quickly converges.

Thanks,

	Ingo
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