linux-kernel - Re: [PATCH] X86: remove WARN

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Message-ID: <20080221115452.GB13948@elte.hu>
Date:	Thu, 21 Feb 2008 12:54:52 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Joerg Roedel <joerg.roedel@....com>
Cc:	tglx@...utronix.de, mingo@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] X86: remove WARN_ON if MTRRs are all blank


* Joerg Roedel <joerg.roedel@....com> wrote:

>  	if (!highest_pfn) {
>  		printk(KERN_WARNING "WARNING: strange, CPU MTRRs all blank?\n");
> -		WARN_ON(1);
>  		return 0;
>  	}

instead of obscuring a possibly useful warning, please instead detect 
that it's a KVM guest and skip both the warning and the backtrace in 
that case.

	Ingo
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