diff options
| author | Eric Sandeen <sandeen@sgi.com> | 2006-06-26 08:00:08 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 13:48:22 -0400 |
| commit | 8501a2fbe762b21d2504ed3aca3b52be61b5e6e4 (patch) | |
| tree | 899bf4085bb29927a71dd90b3ed1fb444ed4b0ea /arch | |
| parent | 4961f10e2205d0ededa291e12ec634efc58aa93c (diff) | |
[PATCH] x86_64: x86_64 stack usage debugging
Applies to git & 2.6.17-rc6 after CONFIG_DEBUG_STACKOVERFLOW patch
uses same stack-zeroing mechanism as on i386 to discover maximum stack
excursions.
Signed-off-by: Eric Sandeen <sandeen@sgi.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86_64/Kconfig.debug | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug index 087a04868b25..1d92ab56c0f9 100644 --- a/arch/x86_64/Kconfig.debug +++ b/arch/x86_64/Kconfig.debug | |||
| @@ -42,6 +42,15 @@ config DEBUG_STACKOVERFLOW | |||
| 42 | This option will cause messages to be printed if free stack space | 42 | This option will cause messages to be printed if free stack space |
| 43 | drops below a certain limit. | 43 | drops below a certain limit. |
| 44 | 44 | ||
| 45 | config DEBUG_STACK_USAGE | ||
| 46 | bool "Stack utilization instrumentation" | ||
| 47 | depends on DEBUG_KERNEL | ||
| 48 | help | ||
| 49 | Enables the display of the minimum amount of free stack which each | ||
| 50 | task has ever had available in the sysrq-T and sysrq-P debug output. | ||
| 51 | |||
| 52 | This option will slow down process creation somewhat. | ||
| 53 | |||
| 45 | #config X86_REMOTE_DEBUG | 54 | #config X86_REMOTE_DEBUG |
| 46 | # bool "kgdb debugging stub" | 55 | # bool "kgdb debugging stub" |
| 47 | 56 | ||