Re: CONFIG_LOG_BUF_SHIFT hardwired in 2.6.0-test4-bk2 ?

From: Randy.Dunlap
Date: Fri Aug 29 2003 - 13:48:39 EST


On Fri, 29 Aug 2003 11:36:34 -0700 "Randy.Dunlap" <rddunlap@xxxxxxxx> wrote:

| On Fri, 29 Aug 2003 20:30:19 +0200 Nicolas Mailhot <Nicolas.Mailhot@xxxxxxxxxxx> wrote:
|
| | Hi,
| |
| | I'm testing acpi changes and unfortunately all the debug messages
| | overflow the log buffer. So I decided to increase CONFIG_LOG_BUF_SHIFT
| | in .config (there was a menu entry for this at some time in menuconfig
| | but I can't find it anymore).
| |
| | Anyway no matter what I do the value seems to be reseted to 14 at build
| | time. Is there a way to cleanly change it without poking directly into
| | the kernel source code ?
|
| You need to enable DEBUG_KERNEL (kernel debugging) to see it in the menu.
|
| After you edit .config, run 'make oldconfig' and that should fix it.

More accurately, you cannot edit .config and make oldconfig on this
config option if DEBUG_KERNEL is not set. It won't take effect.
It will be lost by make oldconfig, so enable DEBUG_KERNEL first.

--
~Randy
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