58 lines
1.9 KiB
Plaintext
58 lines
1.9 KiB
Plaintext
menu "Kernel hacking"
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source "lib/Kconfig.debug"
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# !SMP for now because the context switch early causes GPF in segment reloading
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# and the GS base checking does the wrong thing then, causing a hang.
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config CHECKING
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bool "Additional run-time checks"
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depends on DEBUG_KERNEL && !SMP
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help
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Enables some internal consistency checks for kernel debugging.
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You should normally say N.
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config INIT_DEBUG
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bool "Debug __init statements"
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depends on DEBUG_KERNEL
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help
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Fill __init and __initdata at the end of boot. This helps debugging
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illegal uses of __init and __initdata after initialization.
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config IOMMU_DEBUG
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depends on GART_IOMMU && DEBUG_KERNEL
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bool "Enable IOMMU debugging"
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help
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Force the IOMMU to on even when you have less than 4GB of
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memory and add debugging code. On overflow always panic. And
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allow to enable IOMMU leak tracing. Can be disabled at boot
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time with iommu=noforce. This will also enable scatter gather
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list merging. Currently not recommended for production
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code. When you use it make sure you have a big enough
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IOMMU/AGP aperture. Most of the options enabled by this can
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be set more finegrained using the iommu= command line
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options. See Documentation/x86_64/boot-options.txt for more
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details.
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config KPROBES
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bool "Kprobes"
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depends on DEBUG_KERNEL
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help
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Kprobes allows you to trap at almost any kernel address and
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execute a callback function. register_kprobe() establishes
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a probepoint and specifies the callback. Kprobes is useful
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for kernel debugging, non-intrusive instrumentation and testing.
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If in doubt, say "N".
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config IOMMU_LEAK
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bool "IOMMU leak tracing"
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depends on DEBUG_KERNEL
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depends on IOMMU_DEBUG
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help
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Add a simple leak tracer to the IOMMU code. This is useful when you
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are debugging a buggy device driver that leaks IOMMU mappings.
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#config X86_REMOTE_DEBUG
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# bool "kgdb debugging stub"
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endmenu
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