forked from Minki/linux
cd6b0762a0
Andrew Morton suggested to move kprobes from kernel hacking menu, since kernel hacking menu is in-appropriate for the Kprobes. This patch moves Kprobes and Oprofile under instrumentation menu. (akpm: it's not a natural fit, but things like djprobes and the s390 guys' statistics library need a home) Signed-of-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Philippe Elie <phil.el@wanadoo.fr> Cc: John Levon <levon@movementarian.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
66 lines
2.0 KiB
Plaintext
66 lines
2.0 KiB
Plaintext
menu "Kernel hacking"
|
|
|
|
source "lib/Kconfig.debug"
|
|
|
|
config EARLY_PRINTK
|
|
bool "Early printk" if EMBEDDED && DEBUG_KERNEL
|
|
default y
|
|
help
|
|
Write kernel log output directly into the VGA buffer or to a serial
|
|
port.
|
|
|
|
This is useful for kernel debugging when your machine crashes very
|
|
early before the console code is initialized. For normal operation
|
|
it is not recommended because it looks ugly and doesn't cooperate
|
|
with klogd/syslogd or the X server. You should normally N here,
|
|
unless you want to debug such a crash.
|
|
|
|
config DEBUG_STACKOVERFLOW
|
|
bool "Check for stack overflows"
|
|
depends on DEBUG_KERNEL
|
|
help
|
|
This option will cause messages to be printed if free stack space
|
|
drops below a certain limit.
|
|
|
|
config DEBUG_STACK_USAGE
|
|
bool "Stack utilization instrumentation"
|
|
depends on DEBUG_KERNEL
|
|
help
|
|
Enables the display of the minimum amount of free stack which each
|
|
task has ever had available in the sysrq-T and sysrq-P debug output.
|
|
|
|
This option will slow down process creation somewhat.
|
|
|
|
comment "Page alloc debug is incompatible with Software Suspend on i386"
|
|
depends on DEBUG_KERNEL && SOFTWARE_SUSPEND
|
|
|
|
config DEBUG_PAGEALLOC
|
|
bool "Page alloc debugging"
|
|
depends on DEBUG_KERNEL && !SOFTWARE_SUSPEND
|
|
help
|
|
Unmap pages from the kernel linear mapping after free_pages().
|
|
This results in a large slowdown, but helps to find certain types
|
|
of memory corruptions.
|
|
|
|
config 4KSTACKS
|
|
bool "Use 4Kb for kernel stacks instead of 8Kb"
|
|
depends on DEBUG_KERNEL
|
|
help
|
|
If you say Y here the kernel will use a 4Kb stacksize for the
|
|
kernel stack attached to each process/thread. This facilitates
|
|
running more threads on a system and also reduces the pressure
|
|
on the VM subsystem for higher order allocations. This option
|
|
will also use IRQ stacks to compensate for the reduced stackspace.
|
|
|
|
config X86_FIND_SMP_CONFIG
|
|
bool
|
|
depends on X86_LOCAL_APIC || X86_VOYAGER
|
|
default y
|
|
|
|
config X86_MPPARSE
|
|
bool
|
|
depends on X86_LOCAL_APIC && !X86_VISWS
|
|
default y
|
|
|
|
endmenu
|