3 source "lib/Kconfig.debug"
6 bool "Debug __init statements"
7 depends on DEBUG_KERNEL
9 Fill __init and __initdata at the end of boot. This helps debugging
10 illegal uses of __init and __initdata after initialization.
13 depends on GART_IOMMU && DEBUG_KERNEL
14 bool "Enable IOMMU debugging"
16 Force the IOMMU to on even when you have less than 4GB of
17 memory and add debugging code. On overflow always panic. And
18 allow to enable IOMMU leak tracing. Can be disabled at boot
19 time with iommu=noforce. This will also enable scatter gather
20 list merging. Currently not recommended for production
21 code. When you use it make sure you have a big enough
22 IOMMU/AGP aperture. Most of the options enabled by this can
23 be set more finegrained using the iommu= command line
24 options. See Documentation/x86_64/boot-options.txt for more
29 depends on DEBUG_KERNEL
31 Kprobes allows you to trap at almost any kernel address and
32 execute a callback function. register_kprobe() establishes
33 a probepoint and specifies the callback. Kprobes is useful
34 for kernel debugging, non-intrusive instrumentation and testing.
38 bool "IOMMU leak tracing"
39 depends on DEBUG_KERNEL
40 depends on IOMMU_DEBUG
42 Add a simple leak tracer to the IOMMU code. This is useful when you
43 are debugging a buggy device driver that leaks IOMMU mappings.
45 #config X86_REMOTE_DEBUG
46 # bool "kgdb debugging stub"