On Thu, Mar 20, 2008 at 08:35:41PM +0100, Toralf Förster wrote:
 > I'm wondering why this option is always set after "make oldconfig" :
 > 
 > tfoerste@n22 ~/devel/linux-2.6 $ grep _SLUB_DEBUG=y .config
 > CONFIG_SLUB_DEBUG=y
 > tfoerste@n22 ~/devel/linux-2.6 $ sed -i -e 's/_SLUB_DEBUG=y/_SLUB_DEBUG=n/' .config
 > tfoerste@n22 ~/devel/linux-2.6 $ grep _SLUB_DEBUG= .config
 > CONFIG_SLUB_DEBUG=n
 > tfoerste@n22 ~/devel/linux-2.6 $ make oldconfig 1>/dev/null
 > tfoerste@n22 ~/devel/linux-2.6 $ grep _SLUB_DEBUG= .config
 > CONFIG_SLUB_DEBUG=y

CONFIG_SLUB_DEBUG is only optional if CONFIG_EMBEDDED is set.
There's little to no cost other than codesize to having it enabled.

	Dave
 
-- 
http://www.codemonkey.org.uk
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