linux-kernel - Re: Size of kernel modules

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Message-ID: <Pine.LNX.4.64.0706080838210.17480@localhost.localdomain>
Date:	Fri, 8 Jun 2007 08:40:22 -0400 (EDT)
From:	"Robert P. J. Day" <rpjday@...dspring.com>
To:	Kyle McMartin <kyle@...onical.com>
cc:	Christoph Pleger <Christoph.Pleger@...uni-dortmund.de>,
	linux-kernel@...r.kernel.org
Subject: Re: Size of kernel modules

On Thu, 7 Jun 2007, Kyle McMartin wrote:

> On Wed, Jun 06, 2007 at 05:05:34PM +0200, Christoph Pleger wrote:
> > So, my question is the follwing: Is it an expected feature that the file
> > sizes of modules grow so much only because of a different cpu type and a
> > different localversion, or is there probably a bug in my build tools?
>
> The kernel is compiled with debug info so that we can strip it later to
> build two packages, one with debugging information intact, and one
> without it.
>
> If you disable CONFIG_DEBUG_KERNEL, things should go back to normal
> sizes for you.

grow so much compared to *which other modules*?  the ones that came
with your distro?  if that's the case, try installing your new modules
with

  # make INSTALL_MOD_STRIP=1 modules_install

that makes a *huge* difference in the size of the installed modules,
as i learned when i first ran across this on my fedora core system.

rday
--
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

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