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authorIngo Molnar <mingo@elte.hu>2008-07-08 10:32:56 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-08 10:32:56 +0200
commit896395c290f902576270d84291c1f7f8bfbe339d (patch)
tree650114bff3a5f808ee1d713ecc443b0eaab2e1c3 /arch/x86/Kconfig.debug
parentaf1cf204ba2fd8135933a2e4df523fb1112dc0e2 (diff)
parent1b40a895df6c7d5a80e71f65674060b03d84bbef (diff)
downloadblackbird-op-linux-896395c290f902576270d84291c1f7f8bfbe339d.tar.gz
blackbird-op-linux-896395c290f902576270d84291c1f7f8bfbe339d.zip
Merge branch 'linus' into tmp.x86.mpparse.new
Diffstat (limited to 'arch/x86/Kconfig.debug')
-rw-r--r--arch/x86/Kconfig.debug20
1 files changed, 12 insertions, 8 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index d5b364b43a02..253e7a5706d3 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -6,15 +6,19 @@ config TRACE_IRQFLAGS_SUPPORT
source "lib/Kconfig.debug"
config NONPROMISC_DEVMEM
- bool "Disable promiscuous /dev/mem"
+ bool "Filter access to /dev/mem"
help
- The /dev/mem file by default only allows userspace access to PCI
- space and the BIOS code and data regions. This is sufficient for
- dosemu and X and all common users of /dev/mem. With this config
- option, you allow userspace access to all of memory, including
- kernel and userspace memory. Accidental access to this is
- obviously disasterous, but specific access can be used by people
- debugging the kernel.
+ If this option is left off, you allow userspace access to all
+ of memory, including kernel and userspace memory. Accidental
+ access to this is obviously disastrous, but specific access can
+ be used by people debugging the kernel.
+
+ If this option is switched on, the /dev/mem file only allows
+ userspace access to PCI space and the BIOS code and data regions.
+ This is sufficient for dosemu and X and all common users of
+ /dev/mem.
+
+ If in doubt, say Y.
config EARLY_PRINTK
bool "Early printk" if EMBEDDED
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