linux-kernel - Re: [2.6 patch] let LOG_BUF

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Message-ID: <20080211224233.GE2959@cs181133002.pp.htv.fi>
Date:	Tue, 12 Feb 2008 00:42:33 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [2.6 patch] let LOG_BUF_SHIFT default to 17

On Fri, Feb 01, 2008 at 05:20:03PM +0100, Ingo Molnar wrote:
> 
> * Adrian Bunk <bunk@...nel.org> wrote:
> 
> > 16 kB is often no longer enough for a normal boot of an UP system.
> > 
> > And even less when people e.g. use suspend.
> > 
> > 17 seems to be a more reasonable default for current kernels on 
> > current hardware (it's just the default, anyone who is memory limited 
> > can still lower it).
> 
> agreed - but i think the default should be even higher. Many reported 
> dmesg's are truncated at the really interesting bits so it's a real 
> problem in practice.

17 is 128 kB.

Do we really have that many truncated dmesg's with LOG_BUF_SHIFT=17?

> 	Ingo

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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