mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
1da177e4c3
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!
57 lines
1.9 KiB
Text
57 lines
1.9 KiB
Text
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
|