Re: [uml-devel] [PATCH 4/5] UML - Reenable SysRq support

From: H. Peter Anvin
Date: Wed Jul 12 2006 - 17:10:29 EST


Blaisorblade wrote:
On Wednesday 12 July 2006 18:40, Jeff Dike wrote:
Sysrq works fine on UML.

Signed-off-by: Jeff Dike <jdike@xxxxxxxxxxx>

Index: linux-2.6.17/lib/Kconfig.debug
===================================================================
--- linux-2.6.17.orig/lib/Kconfig.debug 2006-07-12 11:26:41.000000000 -0400
+++ linux-2.6.17/lib/Kconfig.debug 2006-07-12 11:33:02.000000000 -0400
@@ -18,7 +18,6 @@ config ENABLE_MUST_CHECK

config MAGIC_SYSRQ
bool "Magic SysRq key"
- depends on !UML
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
Please reject this patch, the setting for UML is just elsewhere, in arch/um/Kconfig (and depends on MCONSOLE).

If kbuild doesn't handle well having an option declared twice now (it isn't very happy but it worked when I added the above dependency) we can rename the one in arch/um/Kconfig to MAGIC_SYSRQ_UML and make the one above like this (untested):

config MAGIC_SYSRQ
bool
prompt "Magic SysRq key" if !UML
depends on MAGIC_SYSRQ_UML || !UML
default y if UML


Why not:

config MAGIC_SYSRQ
bool
prompt "Magic SysRq key"
depends on !UML || MCONSOLE
default y if UML

-hpa
-
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