lib/Kconfig.debug: adjust hard-lockup related Kconfig options

[karo-tx-linux.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 2403a63b5da5bcf4e978d5dc2dfe8682cebef453..7fba3a98967fc826d76db8aac691a5a5e80911b8 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -196,12 +196,13 @@ config LOCKUP_DETECTOR
          thresholds can be controlled through the sysctl watchdog_thresh.
 
 config HARDLOCKUP_DETECTOR
-       def_bool LOCKUP_DETECTOR && PERF_EVENTS && HAVE_PERF_EVENTS_NMI && \
-                !HAVE_NMI_WATCHDOG
+       def_bool y
+       depends on LOCKUP_DETECTOR && !HAVE_NMI_WATCHDOG
+       depends on PERF_EVENTS && HAVE_PERF_EVENTS_NMI
 
 config BOOTPARAM_HARDLOCKUP_PANIC
        bool "Panic (Reboot) On Hard Lockups"
-       depends on LOCKUP_DETECTOR
+       depends on HARDLOCKUP_DETECTOR
        help
          Say Y here to enable the kernel to panic on "hard lockups",
          which are bugs that cause the kernel to loop in kernel
@@ -212,7 +213,7 @@ config BOOTPARAM_HARDLOCKUP_PANIC
 
 config BOOTPARAM_HARDLOCKUP_PANIC_VALUE
        int
-       depends on LOCKUP_DETECTOR
+       depends on HARDLOCKUP_DETECTOR
        range 0 1
        default 0 if !BOOTPARAM_HARDLOCKUP_PANIC
        default 1 if BOOTPARAM_HARDLOCKUP_PANIC
@@ -452,7 +453,8 @@ config SLUB_STATS
 config DEBUG_KMEMLEAK
        bool "Kernel memory leak detector"
        depends on DEBUG_KERNEL && EXPERIMENTAL && \
-               (X86 || ARM || PPC || MIPS || S390 || SPARC64 || SUPERH || MICROBLAZE || TILE)
+               (X86 || ARM || PPC || MIPS || S390 || SPARC64 || SUPERH || \
+                MICROBLAZE || TILE || ARM64)
 
        select DEBUG_FS
        select STACKTRACE if STACKTRACE_SUPPORT
@@ -629,6 +631,20 @@ config PROVE_RCU_REPEATEDLY
 
         Say N if you are unsure.
 
+config PROVE_RCU_DELAY
+       bool "RCU debugging: preemptible RCU race provocation"
+       depends on DEBUG_KERNEL && PREEMPT_RCU
+       default n
+       help
+        There is a class of races that involve an unlikely preemption
+        of __rcu_read_unlock() just after ->rcu_read_lock_nesting has
+        been set to INT_MIN.  This feature inserts a delay at that
+        point to increase the probability of these races.
+
+        Say Y to increase probability of preemption of __rcu_read_unlock().
+
+        Say N if you are unsure.
+
 config SPARSE_RCU_POINTER
        bool "RCU debugging: sparse-based checks for pointer usage"
        default n
@@ -739,7 +755,8 @@ config DEBUG_BUGVERBOSE
        bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EXPERT
        depends on BUG
        depends on ARM || AVR32 || M32R || M68K || SPARC32 || SPARC64 || \
-                  FRV || SUPERH || GENERIC_BUG || BLACKFIN || MN10300 || TILE
+                  FRV || SUPERH || GENERIC_BUG || BLACKFIN || MN10300 || \
+                  TILE || ARM64
        default y
        help
          Say Y here to make BUG() panics output the file name and line number