CONFIG_DEFAULT_HUNG_TASK_TIMEOUT: Default timeout for hung task detection (in seconds)

General informations

The Linux kernel configuration item CONFIG_DEFAULT_HUNG_TASK_TIMEOUT:

• prompt: Default timeout for hung task detection (in seconds)
• type: int
• depends on: CONFIG_DETECT_HUNG_TASK
• defined in lib/Kconfig.debug
• found in Linux kernels: 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

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_secs sysctl or by writing a value to /proc/sys/kernel/hung_task_timeout_secs.

A timeout of 0 disables the check. The default is two minutes. Keeping the default should be fine in most cases.

Hardware

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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