diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:15:58 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:15:58 +0200 |
| commit | e765ee90da62535ac7d7a97f2464f9646539d683 (patch) | |
| tree | 7a9cecce5aab958938e9a3bf46c2302d6af1958c /arch/x86/Kconfig.debug | |
| parent | a4500b84c51645bbc86be3ca84f2252b7ada060f (diff) | |
| parent | 066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff) | |
Merge branch 'linus' into tracing/ftracetip-tracing-ftrace-2008-06-16_09.26_Montip-tracing-ftrace-2008-06-16_09.16_Mon
Diffstat (limited to 'arch/x86/Kconfig.debug')
| -rw-r--r-- | arch/x86/Kconfig.debug | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index 9431a8399844..f395fd537c5c 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 |