diff options
| -rw-r--r-- | kernel/hung_task.c | 2 | ||||
| -rw-r--r-- | lib/Kconfig.debug | 15 |
2 files changed, 16 insertions, 1 deletions
diff --git a/kernel/hung_task.c b/kernel/hung_task.c index 53ead174da2..ea640120ab8 100644 --- a/kernel/hung_task.c +++ b/kernel/hung_task.c @@ -33,7 +33,7 @@ unsigned long __read_mostly sysctl_hung_task_check_count = PID_MAX_LIMIT; /* * Zero means infinite timeout - no checking done: */ -unsigned long __read_mostly sysctl_hung_task_timeout_secs = 120; +unsigned long __read_mostly sysctl_hung_task_timeout_secs = CONFIG_DEFAULT_HUNG_TASK_TIMEOUT; unsigned long __read_mostly sysctl_hung_task_warnings = 10; diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index c768bcdda1b..debbb0580bf 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -238,6 +238,21 @@ config DETECT_HUNG_TASK enabled then all held locks will also be reported. This feature has negligible overhead. +config DEFAULT_HUNG_TASK_TIMEOUT + int "Default timeout for hung task detection (in seconds)" + depends on DETECT_HUNG_TASK + default 120 + help + This option controls the default timeout (in seconds) used + to determine when a task has become non-responsive and should + be considered hung. + + It can be adjusted at runtime via the kernel.hung_task_timeout + sysctl or by writing a value to /proc/sys/kernel/hung_task_timeout. + + A timeout of 0 disables the check. The default is two minutes. + Keeping the default should be fine in most cases. + config BOOTPARAM_HUNG_TASK_PANIC bool "Panic (Reboot) On Hung Tasks" depends on DETECT_HUNG_TASK |