Return to Kconfig.debug CVS log

Up to [Development] / linux-2.6-xfs / arch / x86_64

Merge up to 2.6.9-rc4
Merge of 2.6.x-xfs-melb:linux:19727a by kenmcd.

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 SCHEDSTATS
	bool "Collect scheduler statistics"
	depends on DEBUG_KERNEL && PROC_FS
	help
	  If you say Y here, additional code will be inserted into the
	  scheduler and related routines to collect statistics about
	  scheduler behavior and provide them in /proc/schedstat.  These
	  stats may be useful for both tuning and debugging the scheduler
	  If you aren't debugging the scheduler or trying to tune a specific
	  application, you can say N to avoid the very slight overhead
	  this adds.

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 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