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diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 77e0d8b..8cf9938 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -50,6 +50,14 @@ config MAGIC_SYSRQ
 	  keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
 	  unless you really know what this hack does.
 
+config STRIP_ASM_SYMS
+	bool "Strip assembler-generated symbols during link"
+	default n
+	help
+	  Strip internal assembler-generated symbols during a link (symbols
+	  that look like '.Lxxx') so they don't pollute the output of
+	  get_wchan() and suchlike.
+
 config UNUSED_SYMBOLS
 	bool "Enable unused/obsolete exported symbols"
 	default y if X86
@@ -97,7 +105,7 @@ config DEBUG_SECTION_MISMATCH
 	bool "Enable full Section mismatch analysis"
 	depends on UNDEFINED
 	# This option is on purpose disabled for now.
-	# It will be enabled when we are down to a resonable number
+	# It will be enabled when we are down to a reasonable number
 	# of section mismatch warnings (< 10 for an allyesconfig build)
 	help
 	  The section mismatch analysis checks if there are illegal
@@ -290,6 +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
@@ -338,10 +354,9 @@ config SLUB_STATS
 
 config DEBUG_KMEMLEAK
 	bool "Kernel memory leak detector"
-	depends on DEBUG_KERNEL && EXPERIMENTAL && (X86 || ARM) && \
-		!MEMORY_HOTPLUG
-	select DEBUG_SLAB if SLAB
-	select SLUB_DEBUG if SLUB
+	depends on DEBUG_KERNEL && EXPERIMENTAL && !MEMORY_HOTPLUG && \
+		(X86 || ARM || PPC || S390)
+
 	select DEBUG_FS if SYSFS
 	select STACKTRACE if STACKTRACE_SUPPORT
 	select KALLSYMS
@@ -355,9 +370,24 @@ config DEBUG_KMEMLEAK
 	  allocations. See Documentation/kmemleak.txt for more
 	  details.
 
+	  Enabling DEBUG_SLAB or SLUB_DEBUG may increase the chances
+	  of finding leaks due to the slab objects poisoning.
+
 	  In order to access the kmemleak file, debugfs needs to be
 	  mounted (usually at /sys/kernel/debug).
 
+config DEBUG_KMEMLEAK_EARLY_LOG_SIZE
+	int "Maximum kmemleak early log entries"
+	depends on DEBUG_KMEMLEAK
+	range 200 40000
+	default 400
+	help
+	  Kmemleak must track all the memory allocations to avoid
+	  reporting false positives. Since memory may be allocated or
+	  freed before kmemleak is initialised, an early log buffer is
+	  used to store these actions. If kmemleak reports "early log
+	  buffer exceeded", please increase this value.
+
 config DEBUG_KMEMLEAK_TEST
 	tristate "Simple test for the kernel memory leak detector"
 	depends on DEBUG_KMEMLEAK
@@ -370,7 +400,7 @@ config DEBUG_KMEMLEAK_TEST
 
 config DEBUG_PREEMPT
 	bool "Debug preemptible kernel"
-	depends on DEBUG_KERNEL && PREEMPT && (TRACE_IRQFLAGS_SUPPORT || PPC64)
+	depends on DEBUG_KERNEL && PREEMPT && TRACE_IRQFLAGS_SUPPORT
 	default y
 	help
 	  If you say Y here then the kernel will use a debug variant of the
@@ -545,7 +575,7 @@ 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
@@ -640,6 +670,21 @@ config DEBUG_NOTIFIERS
 	  This is a relatively cheap check but if you care about maximum
 	  performance, say N.
 
+config DEBUG_CREDENTIALS
+	bool "Debug credential management"
+	depends on DEBUG_KERNEL
+	help
+	  Enable this to turn on some debug checking for credential
+	  management.  The additional code keeps track of the number of
+	  pointers from task_structs to any given cred struct, and checks to
+	  see that this number never exceeds the usage count of the cred
+	  struct.
+
+	  Furthermore, if SELinux is enabled, this also checks that the
+	  security pointer in the cred struct is never seen to be invalid.
+
+	  If unsure, say N.
+
 #
 # Select this config option from the architecture Kconfig, if it
 # it is preferred to always offer frame pointers as a config
@@ -712,8 +757,8 @@ config RCU_TORTURE_TEST_RUNNABLE
 
 config RCU_CPU_STALL_DETECTOR
 	bool "Check for stalled CPUs delaying RCU grace periods"
-	depends on CLASSIC_RCU || TREE_RCU
-	default n
+	depends on TREE_RCU || TREE_PREEMPT_RCU
+	default y
 	help
 	  This option causes RCU to printk information on which
 	  CPUs are delaying the current grace period, but only when
@@ -875,7 +920,7 @@ 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