summaryrefslogtreecommitdiff
path: root/arch/x86/Kconfig.debug
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/Kconfig.debug')
-rw-r--r--arch/x86/Kconfig.debug88
1 files changed, 0 insertions, 88 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 3951ebb5f843..d105f29bb6bb 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -260,94 +260,6 @@ config DEFAULT_IO_DELAY_TYPE
default IO_DELAY_TYPE_NONE
endif
-menuconfig KMEMCHECK
- bool "kmemcheck: trap use of uninitialized memory"
- depends on DEBUG_KERNEL
- depends on !X86_USE_3DNOW
- depends on SLUB || SLAB
- depends on !CC_OPTIMIZE_FOR_SIZE
- depends on !FUNCTION_TRACER
- select FRAME_POINTER
- select STACKTRACE
- default n
- help
- This option enables tracing of dynamically allocated kernel memory
- to see if memory is used before it has been given an initial value.
- Be aware that this requires half of your memory for bookkeeping and
- will insert extra code at *every* read and write to tracked memory
- thus slow down the kernel code (but user code is unaffected).
-
- The kernel may be started with kmemcheck=0 or kmemcheck=1 to disable
- or enable kmemcheck at boot-time. If the kernel is started with
- kmemcheck=0, the large memory and CPU overhead is not incurred.
-
-choice
- prompt "kmemcheck: default mode at boot"
- depends on KMEMCHECK
- default KMEMCHECK_ONESHOT_BY_DEFAULT
- help
- This option controls the default behaviour of kmemcheck when the
- kernel boots and no kmemcheck= parameter is given.
-
-config KMEMCHECK_DISABLED_BY_DEFAULT
- bool "disabled"
- depends on KMEMCHECK
-
-config KMEMCHECK_ENABLED_BY_DEFAULT
- bool "enabled"
- depends on KMEMCHECK
-
-config KMEMCHECK_ONESHOT_BY_DEFAULT
- bool "one-shot"
- depends on KMEMCHECK
- help
- In one-shot mode, only the first error detected is reported before
- kmemcheck is disabled.
-
-endchoice
-
-config KMEMCHECK_QUEUE_SIZE
- int "kmemcheck: error queue size"
- depends on KMEMCHECK
- default 64
- help
- Select the maximum number of errors to store in the queue. Since
- errors can occur virtually anywhere and in any context, we need a
- temporary storage area which is guarantueed not to generate any
- other faults. The queue will be emptied as soon as a tasklet may
- be scheduled. If the queue is full, new error reports will be
- lost.
-
-config KMEMCHECK_SHADOW_COPY_SHIFT
- int "kmemcheck: shadow copy size (5 => 32 bytes, 6 => 64 bytes)"
- depends on KMEMCHECK
- range 2 8
- default 5
- help
- Select the number of shadow bytes to save along with each entry of
- the queue. These bytes indicate what parts of an allocation are
- initialized, uninitialized, etc. and will be displayed when an
- error is detected to help the debugging of a particular problem.
-
-config KMEMCHECK_PARTIAL_OK
- bool "kmemcheck: allow partially uninitialized memory"
- depends on KMEMCHECK
- default y
- help
- This option works around certain GCC optimizations that produce
- 32-bit reads from 16-bit variables where the upper 16 bits are
- thrown away afterwards. This may of course also hide some real
- bugs.
-
-config KMEMCHECK_BITOPS_OK
- bool "kmemcheck: allow bit-field manipulation"
- depends on KMEMCHECK
- default n
- help
- This option silences warnings that would be generated for bit-field
- accesses where not all the bits are initialized at the same time.
- This may also hide some real bugs.
-
config DEBUG_BOOT_PARAMS
bool "Debug boot parameters"
depends on DEBUG_KERNEL