linux-kernel - Re: [2.6 patch] x86: make dump

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Message-ID: <20080214055052.GA29509@elte.hu>
Date:	Thu, 14 Feb 2008 06:50:52 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Adrian Bunk <bunk@...nel.org>
Cc:	Harvey Harrison <harvey.harrison@...il.com>,
	Andi Kleen <ak@...e.de>, Thomas Gleixner <tglx@...utronix.de>,
	hpa@...or.com, linux-kernel@...r.kernel.org
Subject: Re: [2.6 patch] x86: make dump_pagetable() static


* Adrian Bunk <bunk@...nel.org> wrote:

> On Wed, Feb 13, 2008 at 02:27:47PM -0800, Harvey Harrison wrote:
> > On Wed, 2008-02-13 at 23:31 +0200, Adrian Bunk wrote:
> > > dump_pagetable() can now become static.
> > > 
> > > Signed-off-by: Adrian Bunk <bunk@...nel.org>

thanks, applied.

> > I believe Andi Kleen wanted this kept global to make it easy to use 
> > when adding debugging code elsewhere.
> 
> That's not a reason as long as his code isn't in the tree (and he 
> anyway has to patch the kernel for using it).

correct. There's also a new CONFIG_X86_PTDUMP=y pagetable dumping debug 
feature now in x86.git#mm that produces much nicer output.

Arjan: i it might be nice to make the new pagetable dumper triggerable 
from a SysRq - could you try the kernel/time/timer_list.c's SEQ_printf() 
trick to make the dumping dual-purpose? [so that it printk()'s if it 
should dump to the console and seq_printf()'s if it should dump via 
/proc]

	Ingo
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