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[firefly-linux-kernel-4.4.55.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 8c15b29d5adc64214880cf7c066fb83349f612aa..63d14d9b51d889dceffc1492d4e72b220fae47cc 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -707,15 +707,27 @@ config LOCKUP_DETECTOR
          The overhead should be minimal.  A periodic hrtimer runs to
          generate interrupts and kick the watchdog task every 4 seconds.
          An NMI is generated every 10 seconds or so to check for hardlockups.
+         If NMIs are not available on the platform, every 12 seconds the
+         hrtimer interrupt on one cpu will be used to check for hardlockups
+         on the next cpu.
 
          The frequency of hrtimer and NMI events and the soft and hard lockup
          thresholds can be controlled through the sysctl watchdog_thresh.
 
-config HARDLOCKUP_DETECTOR
+config HARDLOCKUP_DETECTOR_NMI
        def_bool y
        depends on LOCKUP_DETECTOR && !HAVE_NMI_WATCHDOG
        depends on PERF_EVENTS && HAVE_PERF_EVENTS_NMI
 
+config HARDLOCKUP_DETECTOR_OTHER_CPU
+       def_bool y
+       depends on LOCKUP_DETECTOR && SMP
+       depends on !HARDLOCKUP_DETECTOR_NMI && !HAVE_NMI_WATCHDOG
+
+config HARDLOCKUP_DETECTOR
+       def_bool y
+       depends on HARDLOCKUP_DETECTOR_NMI || HARDLOCKUP_DETECTOR_OTHER_CPU
+
 config BOOTPARAM_HARDLOCKUP_PANIC
        bool "Panic (Reboot) On Hard Lockups"
        depends on HARDLOCKUP_DETECTOR
@@ -855,6 +867,15 @@ config SCHED_INFO
        bool
        default n
 
+config PANIC_ON_RT_THROTTLING
+       bool "Panic on RT throttling"
+       help
+         Say Y here to enable the kernel to panic when a realtime
+         runqueue is throttled. This may be useful for detecting
+         and debugging RT throttling issues.
+
+         Say N if unsure.
+
 config SCHEDSTATS
        bool "Collect scheduler statistics"
        depends on DEBUG_KERNEL && PROC_FS