diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 74fdc5cf4adc..d317c1ad62ab 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -191,15 +191,27 @@ 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 @@ -669,8 +681,9 @@ config DEBUG_LOCKING_API_SELFTESTS mutexes and rwsems. config STACKTRACE - bool + bool "Stacktrace" depends on STACKTRACE_SUPPORT + default y config DEBUG_STACK_USAGE bool "Stack utilization instrumentation" |