From: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
This config option was lost during the creation of lib/Kconfig.debug, due to a
bad expressed dependency; I also moved the option back to its original place
for UML (it is near CONFIG_MCONSOLE since it depends on that).
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/arch/um/Kconfig | 19 +++++++++++++++++++
25-akpm/lib/Kconfig.debug | 1 -
2 files changed, 19 insertions(+), 1 deletion(-)
diff -puN arch/um/Kconfig~uml-readd-config_magic_sysrq-for-uml arch/um/Kconfig
--- 25/arch/um/Kconfig~uml-readd-config_magic_sysrq-for-uml Thu Jan 13 15:27:05 2005
+++ 25-akpm/arch/um/Kconfig Thu Jan 13 15:27:05 2005
@@ -145,6 +145,25 @@ config MCONSOLE
It is safe to say 'Y' here.
+config MAGIC_SYSRQ
+ bool "Magic SysRq key"
+ depends on MCONSOLE
+ ---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
+ will be able to flush the buffer cache to disk, reboot the system
+ immediately or dump some status information). A key for each of the
+ possible requests is provided.
+
+ This is the feature normally accomplished by pressing a key
+ while holding SysRq (Alt+PrintScreen).
+
+ On UML, this is accomplished by sending a "sysrq" command with
+ mconsole, followed by the letter for the requested command.
+
+ The keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
+ unless you really know what this hack does.
+
config HOST_2G_2G
bool "2G/2G host address space split"
default n
diff -puN lib/Kconfig.debug~uml-readd-config_magic_sysrq-for-uml lib/Kconfig.debug
--- 25/lib/Kconfig.debug~uml-readd-config_magic_sysrq-for-uml Thu Jan 13 15:27:05 2005
+++ 25-akpm/lib/Kconfig.debug Thu Jan 13 15:27:05 2005
@@ -23,7 +23,6 @@ config MAGIC_SYSRQ
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL && (H8300 || M68KNOMMU || V850)
- depends (USERMODE && MCONSOLE)
help
Enables console device to interpret special characters as
commands to dump state information.
_