Merge branch 'x86/asm' into x86/atomic

[safe/jmp/linux-2.6] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 3676c51..2313840 100644 (file)
--- 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"