linux-kernel - Re: [PATCH] x86_64 early_idt

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Message-ID: <20080111073851.GA25207@elte.hu>
Date:	Fri, 11 Jan 2008 08:38:51 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Roland McGrath <roland@...hat.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86_64 early_idt_handler improvements


* Roland McGrath <roland@...hat.com> wrote:

> It's not too pretty, but I found this made the "PANIC: early 
> exception" messages become much more reliably useful: 1. print the 
> vector number, 2. print the %cs value, 3. handle error-code-pushing vs 
> non-pushing vectors.

thanks, applied.

since these printouts are only useful if we have early-printk 
capabilities enabled, i made it dependent on CONFIG_EARLY_PRINTK.

I also made EARLY_PRINTK selectable on 64-bit as well. (for some unknown 
reason it was unconditionally built into 64-bit (unlike 32-bit where it 
is selectable on EMBEDDED))

	Ingo
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