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authorH. Peter Anvin <hpa@zytor.com>2010-04-29 16:53:17 -0700
committerH. Peter Anvin <hpa@zytor.com>2010-04-29 16:53:17 -0700
commitd9c5841e22231e4e49fd0a1004164e6fce59b7a6 (patch)
treee1f589c46b3ff79bbe7b1b2469f6362f94576da6 /lib/Kconfig.debug
parentb701a47ba48b698976fb2fe05fb285b0edc1d26a (diff)
parent5967ed87ade85a421ef814296c3c7f182b08c225 (diff)
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Merge branch 'x86/asm' into x86/atomic
Merge reason: Conflict between LOCK_PREFIX_HERE and relative alternatives pointers Resolved Conflicts: arch/x86/include/asm/alternative.h arch/x86/kernel/alternative.c Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'lib/Kconfig.debug')
-rw-r--r--lib/Kconfig.debug44
1 files changed, 38 insertions, 6 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 3676c517a07..231384012a1 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -103,7 +103,8 @@ config HEADERS_CHECK
config DEBUG_SECTION_MISMATCH
bool "Enable full Section mismatch analysis"
- depends on UNDEFINED
+ depends on UNDEFINED || (BLACKFIN)
+ default y
# This option is on purpose disabled for now.
# It will be enabled when we are down to a reasonable number
# of section mismatch warnings (< 10 for an allyesconfig build)
@@ -355,7 +356,7 @@ config SLUB_STATS
config DEBUG_KMEMLEAK
bool "Kernel memory leak detector"
depends on DEBUG_KERNEL && EXPERIMENTAL && !MEMORY_HOTPLUG && \
- (X86 || ARM || PPC || S390)
+ (X86 || ARM || PPC || S390 || SPARC64 || SUPERH || MICROBLAZE)
select DEBUG_FS if SYSFS
select STACKTRACE if STACKTRACE_SUPPORT
@@ -499,6 +500,18 @@ config PROVE_LOCKING
For more details, see Documentation/lockdep-design.txt.
+config PROVE_RCU
+ bool "RCU debugging: prove RCU correctness"
+ depends on PROVE_LOCKING
+ default n
+ help
+ This feature enables lockdep extensions that check for correct
+ use of RCU APIs. This is currently under development. Say Y
+ if you want to debug RCU usage or help work on the PROVE_RCU
+ feature.
+
+ Say N if you are unsure.
+
config LOCKDEP
bool
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
@@ -520,6 +533,14 @@ config LOCK_STAT
For more details, see Documentation/lockstat.txt
+ This also enables lock events required by "perf lock",
+ subcommand of perf.
+ If you want to use "perf lock", you also need to turn on
+ CONFIG_EVENT_TRACING.
+
+ CONFIG_LOCK_STAT defines "contended" and "acquired" lock events.
+ (CONFIG_LOCKDEP defines "acquire" and "release" events.)
+
config DEBUG_LOCKDEP
bool "Lock dependency engine debugging"
depends on DEBUG_KERNEL && LOCKDEP
@@ -765,10 +786,22 @@ config RCU_CPU_STALL_DETECTOR
CPUs are delaying the current grace period, but only when
the grace period extends for excessive time periods.
- Say Y if you want RCU to perform such checks.
+ Say N if you want to disable such checks.
+
+ Say Y if you are unsure.
+
+config RCU_CPU_STALL_VERBOSE
+ bool "Print additional per-task information for RCU_CPU_STALL_DETECTOR"
+ depends on RCU_CPU_STALL_DETECTOR && TREE_PREEMPT_RCU
+ default n
+ help
+ This option causes RCU to printk detailed per-task information
+ for any tasks that are stalling the current RCU grace period.
Say N if you are unsure.
+ Say Y if you want to enable such checks.
+
config KPROBES_SANITY_TEST
bool "Kprobes sanity tests"
depends on DEBUG_KERNEL
@@ -840,8 +873,7 @@ config DEBUG_FORCE_WEAK_PER_CPU
config LKDTM
tristate "Linux Kernel Dump Test Tool Module"
- depends on DEBUG_KERNEL
- depends on KPROBES
+ depends on DEBUG_FS
depends on BLOCK
default n
help
@@ -852,7 +884,7 @@ config LKDTM
called lkdtm.
Documentation on how to use the module can be found in
- drivers/misc/lkdtm.c
+ Documentation/fault-injection/provoke-crashes.txt
config FAULT_INJECTION
bool "Fault-injection framework"