CONFIG_WQ_WATCHDOG: Detect Workqueue Stalls

General informations

The Linux kernel configuration item CONFIG_WQ_WATCHDOG:

• prompt: Detect Workqueue Stalls
• type: bool
• depends on: CONFIG_DEBUG_KERNEL
• defined in lib/Kconfig.debug
• found in Linux kernels: 4.5–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

Say Y here to enable stall detection on workqueues. If a worker pool doesn't make forward progress on a pending work item for over a given amount of time, 30s by default, a warning message is printed along with dump of workqueue state. This can be configured through kernel parameter "workqueue.watchdog_thresh" and its sysfs counterpart.

Hardware

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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)

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