From: Thomas Dodd <ted@cypress.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Re: kernel/printk.c: increasing the buffer size to capture devfsd debug messages.
Date: Tue, 20 Feb 2001 14:53:04 -0600 [thread overview]
Message-ID: <3A92D930.6F11B505@cypress.com> (raw)
In-Reply-To: <3A92A99E.2F255CB3@yk.rim.or.jp> <20010220111542.A4106@tenchi.datarithm.net> <3A92C76C.6519DF1A@cypress.com> <20010220121727.B4106@tenchi.datarithm.net>
Robert Read wrote:
>
> On Tue, Feb 20, 2001 at 01:37:16PM -0600, Thomas Dodd wrote:
> > Robert Read wrote:
> > >
> > > On Wed, Feb 21, 2001 at 02:30:08AM +0900, Ishikawa wrote:
> > > >
> > > > Has anyone tried 128K buffer size in kernel/printk.c
> > > > and still have the kernel boot (without
> > > > hard to notice memory corruption problems and other subtle bugs)?
> > > > Any hints and tips will be appreciated.
> > >
> > > I have used 128k and larger buffer sizes, and I just noticed this
> > > fragment in the RedHat Tux Webserver patch. It creates a 2MB buffer:
> >
> > I think this should be a config option.
>
> Ok, here is a simple patch to add a config option, I'm compiling it
> now, so it's not tested yet. One question: what is the best way to
> force this option to be a power of 2?
Why not just make the config option in Kbytes.
and do:
#define LOG_BUF_LEN (CONFIG_PRINTK_BUF_LEN * 1024)
since the config option has a default option and will
always be defined, is the #ifdef check really needed?
-Thomas
next prev parent reply other threads:[~2001-02-20 20:53 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-20 17:30 kernel/printk.c: increasing the buffer size to capture devfsd debug messages Ishikawa
2001-02-20 19:15 ` Robert Read
2001-02-20 19:37 ` Thomas Dodd
2001-02-20 20:17 ` [PATCH] " Robert Read
2001-02-20 20:53 ` Thomas Dodd [this message]
2001-02-20 21:03 ` Thomas Dodd
2001-02-20 22:05 ` Robert Read
2001-02-20 22:17 ` [PATCH] configurable printk buffer size Robert Read
2001-02-20 21:27 ` kernel/printk.c: increasing the buffer size to capture devfsd debug messages Ishikawa
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