diff options
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index c82155318cae..e03992d8fad4 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1322,6 +1322,29 @@ config WQ_WATCHDOG state. This can be configured through kernel parameter "workqueue.watchdog_thresh" and its sysfs counterpart. +config BOOTPARAM_WQ_STALL_PANIC + int "Panic on Nth workqueue stall" + default 0 + range 0 100 + depends on WQ_WATCHDOG + help + Set the number of workqueue stalls to trigger a kernel panic. + A workqueue stall occurs when a worker pool doesn't make forward + progress on a pending work item for over 30 seconds (configurable + using the workqueue.watchdog_thresh parameter). + + If n = 0, the kernel will not panic on stall. If n > 0, the kernel + will panic after n stall warnings. + + The panic can be used in combination with panic_timeout, + to cause the system to reboot automatically after a + stall has been detected. This feature is useful for + high-availability systems that have uptime guarantees and + where a stall must be resolved ASAP. + + This setting can be overridden at runtime via the + workqueue.panic_on_stall kernel parameter. + config WQ_CPU_INTENSIVE_REPORT bool "Report per-cpu work items which hog CPU for too long" depends on DEBUG_KERNEL |