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 ?
Regards,
[ Please CC me answers as I only skim the list via marc ]
--
Nicolas Mailhot
On Fri, 29 Aug 2003 20:30:19 +0200 Nicolas Mailhot <[email protected]> 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.
--
~Randy
On Fri, 29 Aug 2003 11:36:34 -0700 "Randy.Dunlap" <[email protected]> wrote:
| On Fri, 29 Aug 2003 20:30:19 +0200 Nicolas Mailhot <[email protected]> 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
Le ven 29/08/2003 ? 20:41, Randy.Dunlap a ?crit :
> On Fri, 29 Aug 2003 11:36:34 -0700 "Randy.Dunlap" <[email protected]> wrote:
>
> | On Fri, 29 Aug 2003 20:30:19 +0200 Nicolas Mailhot <[email protected]> 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.
More accurately if DEBUG_KERNEL is not set you won't get the menuconfig
entry to set it *and* whatever manual changes you to to it in your
.config won't be taken into account.
Which is just plain stupid - if it's linked this hard to DEBUG_KERNEL
what the hell is it doing in another config section ? It's not like it
depended on another option (like usb-storage on usb & scsi). I missed it
both in menuconfig (duh - didn't thought of re-reading the whole menu
structure after enabling debug) and during manual .config edit.
(anyway you solved my problem at light speed and for this you're my day
god - thanks a lot)
--
Nicolas Mailhot