CONFIG_BOOTPARAM_WQ_STALL_PANIC: Panic on Nth workqueue stall

General informations

The Linux kernel configuration item CONFIG_BOOTPARAM_WQ_STALL_PANIC:

• prompt: Panic on Nth workqueue stall
• type: int
• depends on: CONFIG_WQ_WATCHDOG
• defined in lib/Kconfig.debug
• found in Linux kernels: 7.0-rc+HEAD

Help text

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.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

Automatic links from Google (and ads)

Custom Search

Popular queries: