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r: 72630
b: refs/heads/master
c: d013a27
h: refs/heads/master
v: v3
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Randy Dunlap authored and Sam Ravnborg committed Oct 25, 2007
1 parent 4b1f6d2 commit d594d09
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2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 2266cfd50de3872e877eeca3dd4a6f940f22ba60
refs/heads/master: d013a27cb79a01b324f93adb275162c244cca2de
2 changes: 1 addition & 1 deletion trunk/arch/i386/Kconfig
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Expand Up @@ -1272,7 +1272,7 @@ source "fs/Kconfig"

source "kernel/Kconfig.instrumentation"

source "arch/i386/Kconfig.debug"
source "arch/x86/Kconfig.debug"

source "security/Kconfig"

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51 changes: 41 additions & 10 deletions trunk/arch/i386/Kconfig.debug → trunk/arch/x86/Kconfig.debug
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@@ -1,14 +1,14 @@
menu "Kernel hacking"

config TRACE_IRQFLAGS_SUPPORT
bool
default y
def_bool y

source "lib/Kconfig.debug"

config EARLY_PRINTK
bool "Early printk" if EMBEDDED && DEBUG_KERNEL
default y
depends on X86_32
help
Write kernel log output directly into the VGA buffer or to a serial
port.
Expand Down Expand Up @@ -37,10 +37,12 @@ config DEBUG_STACK_USAGE

comment "Page alloc debug is incompatible with Software Suspend on i386"
depends on DEBUG_KERNEL && HIBERNATION
depends on X86_32

config DEBUG_PAGEALLOC
bool "Debug page memory allocations"
depends on DEBUG_KERNEL && !HIBERNATION && !HUGETLBFS
depends on X86_32
help
Unmap pages from the kernel linear mapping after free_pages().
This results in a large slowdown, but helps to find certain types
Expand All @@ -59,6 +61,7 @@ config DEBUG_RODATA
config 4KSTACKS
bool "Use 4Kb for kernel stacks instead of 8Kb"
depends on DEBUG_KERNEL
depends on X86_32
help
If you say Y here the kernel will use a 4Kb stacksize for the
kernel stack attached to each process/thread. This facilitates
Expand All @@ -67,22 +70,50 @@ config 4KSTACKS
will also use IRQ stacks to compensate for the reduced stackspace.

config X86_FIND_SMP_CONFIG
bool
def_bool y
depends on X86_LOCAL_APIC || X86_VOYAGER
default y
depends on X86_32

config X86_MPPARSE
bool
def_bool y
depends on X86_LOCAL_APIC && !X86_VISWS
default y
depends on X86_32

config DOUBLEFAULT
default y
bool "Enable doublefault exception handler" if EMBEDDED
depends on X86_32
help
This option allows trapping of rare doublefault exceptions that
would otherwise cause a system to silently reboot. Disabling this
option saves about 4k and might cause you much additional grey
hair.

config IOMMU_DEBUG
bool "Enable IOMMU debugging"
depends on IOMMU && DEBUG_KERNEL
depends on X86_64
help
This option allows trapping of rare doublefault exceptions that
would otherwise cause a system to silently reboot. Disabling this
option saves about 4k and might cause you much additional grey
hair.
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
2 changes: 1 addition & 1 deletion trunk/arch/x86_64/Kconfig
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Expand Up @@ -835,7 +835,7 @@ source fs/Kconfig

source "kernel/Kconfig.instrumentation"

source "arch/x86_64/Kconfig.debug"
source "arch/x86/Kconfig.debug"

source "security/Kconfig"

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61 changes: 0 additions & 61 deletions trunk/arch/x86_64/Kconfig.debug

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