block: Fix overrun in lcm() and move it to lib

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

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 456b2bc..b520ec1 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -298,6 +298,14 @@ config DEBUG_OBJECTS_TIMERS
          timer routines to track the life time of timer objects and
          validate the timer operations.
 
+config DEBUG_OBJECTS_WORK
+       bool "Debug work objects"
+       depends on DEBUG_OBJECTS
+       help
+         If you say Y here, additional code will be inserted into the
+         work queue routines to track the life time of work objects and
+         validate the work operations.
+
 config DEBUG_OBJECTS_ENABLE_DEFAULT
        int "debug_objects bootup default value (0-1)"
         range 0 1
@@ -347,11 +355,12 @@ 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 || SUPERH)
 
        select DEBUG_FS if SYSFS
        select STACKTRACE if STACKTRACE_SUPPORT
        select KALLSYMS
+       select CRC32
        help
          Say Y here if you want to enable the memory leak
          detector. The memory allocation/freeing is traced in a way
@@ -490,6 +499,18 @@ 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
@@ -567,7 +588,7 @@ config DEBUG_BUGVERBOSE
        depends on BUG
        depends on ARM || AVR32 || M32R || M68K || SPARC32 || SPARC64 || \
                   FRV || SUPERH || GENERIC_BUG || BLACKFIN || MN10300
-       default !EMBEDDED
+       default y
        help
          Say Y here to make BUG() panics output the file name and line number
          of the BUG call as well as the EIP and oops trace.  This aids
@@ -750,16 +771,28 @@ config RCU_TORTURE_TEST_RUNNABLE
 config RCU_CPU_STALL_DETECTOR
        bool "Check for stalled CPUs delaying RCU grace periods"
        depends on TREE_RCU || TREE_PREEMPT_RCU
-       default n
+       default y
        help
          This option causes RCU to printk information on which
          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
@@ -831,8 +864,7 @@ 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
@@ -843,7 +875,7 @@ 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"
@@ -912,7 +944,7 @@ config LATENCYTOP
 
 config SYSCTL_SYSCALL_CHECK
        bool "Sysctl checks"
-       depends on SYSCTL_SYSCALL
+       depends on SYSCTL
        ---help---
          sys_sysctl uses binary paths that have been found challenging
          to properly maintain and use. This enables checks that help