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| author | Andi Kleen <ak@suse.de> | 2005-11-05 17:25:54 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-14 19:55:17 -0800 |
| commit | 9e43e1b7c7c9872da032442d8e4bb112a02d16f4 (patch) | |
| tree | 04399c723a8fbd3f859a462add5db34c389ebf45 /arch/x86_64/Kconfig.debug | |
| parent | ffd10a2b77bca50dd05ba26acd5a6e68bcc8f61f (diff) | |
| download | op-kernel-dev-9e43e1b7c7c9872da032442d8e4bb112a02d16f4.zip op-kernel-dev-9e43e1b7c7c9872da032442d8e4bb112a02d16f4.tar.gz | |
[PATCH] x86_64: Remove CONFIG_CHECKING and add command line option for pagefault tracing
CONFIG_CHECKING covered some debugging code used in the early times
of the port. But it wasn't even SMP safe for quite some time
and the bugs it checked for seem to be gone.
This patch removes all the code to verify GS at kernel entry. There
haven't been any new bugs in this area for a long time.
Previously it also covered the sysctl for the page fault tracing.
That didn't make much sense because that code was unconditionally
compiled in. I made that a boot option now because it is typically
only useful at boot.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/Kconfig.debug')
| -rw-r--r-- | arch/x86_64/Kconfig.debug | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug index 9cf1410..3ccf6f4 100644 --- a/arch/x86_64/Kconfig.debug +++ b/arch/x86_64/Kconfig.debug @@ -2,15 +2,6 @@ menu "Kernel hacking" source "lib/Kconfig.debug" -# !SMP for now because the context switch early causes GPF in segment reloading -# and the GS base checking does the wrong thing then, causing a hang. -config CHECKING - bool "Additional run-time checks" - depends on DEBUG_KERNEL && !SMP - help - Enables some internal consistency checks for kernel debugging. - You should normally say N. - config INIT_DEBUG bool "Debug __init statements" depends on DEBUG_KERNEL |
