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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-11 19:13:04 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-11 19:13:04 -0800 |
| commit | 541048a1d31399ccdda27346a37eae4a2ad55186 (patch) | |
| tree | e2a820ee478b18d4214347631b94b9a9b2d8562b /arch/x86/Kconfig.debug | |
| parent | bcede2f64a3b5cb50c0bdec1553ab480fd75d659 (diff) | |
| parent | e58d429209105e698e9d0357481d62b37fe9a7dd (diff) | |
| download | linux-stable-541048a1d31399ccdda27346a37eae4a2ad55186.tar.gz linux-stable-541048a1d31399ccdda27346a37eae4a2ad55186.tar.bz2 linux-stable-541048a1d31399ccdda27346a37eae4a2ad55186.zip | |
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, reboot: Fix typo in nmi reboot path
x86, NMI: Add to_cpumask() to silence compile warning
x86, NMI: NMI selftest depends on the local apic
x86: Add stack top margin for stack overflow checking
x86, NMI: NMI-selftest should handle the UP case properly
x86: Fix the 32-bit stackoverflow-debug build
x86, NMI: Add knob to disable using NMI IPIs to stop cpus
x86, NMI: Add NMI IPI selftest
x86, reboot: Use NMI instead of REBOOT_VECTOR to stop cpus
x86: Clean up the range of stack overflow checking
x86: Panic on detection of stack overflow
x86: Check stack overflow in detail
Diffstat (limited to 'arch/x86/Kconfig.debug')
| -rw-r--r-- | arch/x86/Kconfig.debug | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index bf56e1793272..aa4158f3ce62 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -63,8 +63,11 @@ config DEBUG_STACKOVERFLOW bool "Check for stack overflows" depends on DEBUG_KERNEL ---help--- - This option will cause messages to be printed if free stack space - drops below a certain limit. + Say Y here if you want to check the overflows of kernel, IRQ + and exception stacks. This option will cause messages of the + stacks in detail when free stack space drops below a certain + limit. + If in doubt, say "N". config X86_PTDUMP bool "Export kernel pagetable layout to userspace via debugfs" @@ -284,4 +287,16 @@ config DEBUG_STRICT_USER_COPY_CHECKS If unsure, or if you run an older (pre 4.4) gcc, say N. +config DEBUG_NMI_SELFTEST + bool "NMI Selftest" + depends on DEBUG_KERNEL && X86_LOCAL_APIC + ---help--- + Enabling this option turns on a quick NMI selftest to verify + that the NMI behaves correctly. + + This might help diagnose strange hangs that rely on NMI to + function properly. + + If unsure, say N. + endmenu |