From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/x86_64/Kconfig.debug | 57 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 arch/x86_64/Kconfig.debug (limited to 'arch/x86_64/Kconfig.debug') diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug new file mode 100644 index 00000000000..9cf1410d2f5 --- /dev/null +++ b/arch/x86_64/Kconfig.debug @@ -0,0 +1,57 @@ +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 + help + Fill __init and __initdata at the end of boot. This helps debugging + illegal uses of __init and __initdata after initialization. + +config IOMMU_DEBUG + depends on GART_IOMMU && DEBUG_KERNEL + bool "Enable IOMMU debugging" + help + Force the IOMMU to on even when you have less than 4GB of + memory and add debugging code. On overflow always panic. And + allow to enable IOMMU leak tracing. Can be disabled at boot + time with iommu=noforce. This will also enable scatter gather + list merging. Currently not recommended for production + code. When you use it make sure you have a big enough + IOMMU/AGP aperture. Most of the options enabled by this can + be set more finegrained using the iommu= command line + options. See Documentation/x86_64/boot-options.txt for more + details. + +config KPROBES + bool "Kprobes" + depends on DEBUG_KERNEL + help + Kprobes allows you to trap at almost any kernel address and + execute a callback function. register_kprobe() establishes + a probepoint and specifies the callback. Kprobes is useful + for kernel debugging, non-intrusive instrumentation and testing. + If in doubt, say "N". + +config IOMMU_LEAK + bool "IOMMU leak tracing" + depends on DEBUG_KERNEL + depends on IOMMU_DEBUG + help + Add a simple leak tracer to the IOMMU code. This is useful when you + are debugging a buggy device driver that leaks IOMMU mappings. + +#config X86_REMOTE_DEBUG +# bool "kgdb debugging stub" + +endmenu -- cgit v1.2.3