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| author | Eric Sandeen <sandeen@sgi.com> | 2006-06-26 14:00:08 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 10:48:22 -0700 |
| commit | 8501a2fbe762b21d2504ed3aca3b52be61b5e6e4 (patch) | |
| tree | 899bf4085bb29927a71dd90b3ed1fb444ed4b0ea /arch/x86_64 | |
| parent | 4961f10e2205d0ededa291e12ec634efc58aa93c (diff) | |
| download | linux-stable-8501a2fbe762b21d2504ed3aca3b52be61b5e6e4.tar.gz linux-stable-8501a2fbe762b21d2504ed3aca3b52be61b5e6e4.tar.bz2 linux-stable-8501a2fbe762b21d2504ed3aca3b52be61b5e6e4.zip | |
[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/x86_64')
| -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 This option will cause messages to be printed if free stack space drops below a certain limit. +config DEBUG_STACK_USAGE + bool "Stack utilization instrumentation" + depends on DEBUG_KERNEL + help + Enables the display of the minimum amount of free stack which each + task has ever had available in the sysrq-T and sysrq-P debug output. + + This option will slow down process creation somewhat. + #config X86_REMOTE_DEBUG # bool "kgdb debugging stub" |