CONFIG_PM_NOTIFIER_ERROR_INJECT: PM notifier error injection module

General informations

The Linux kernel configuration item CONFIG_PM_NOTIFIER_ERROR_INJECT:

• prompt: PM notifier error injection module
• type: tristate
• depends on: ( CONFIG_PM && CONFIG_NOTIFIER_ERROR_INJECTION ) && ( CONFIG_PM_DEBUG )
• defined in lib/Kconfig.debug
• found in Linux kernels: 3.6–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.12
• modules built: pm-notifier-error-inject

Help text

This option provides the ability to inject artificial errors to PM notifier chain callbacks. It is controlled through debugfs interface /sys/kernel/debug/notifier-error-inject/pm

If the notifier call chain should be failed with some events notified, write the error code to "actions/<notifier event>/error".

Example: Inject PM suspend error (-12 = -ENOMEM)

# cd /sys/kernel/debug/notifier-error-inject/pm/ # echo -12 > actions/PM_SUSPEND_PREPARE/error # echo mem > /sys/power/state bash: echo: write error: Cannot allocate memory

To compile this code as a module, choose M here: the module will be called pm-notifier-error-inject.

If unsure, say N.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module pm-notifier-error-inject CONFIG_PM_NOTIFIER_ERROR_INJECT : lib/Kconfig.debug : "PM notifier error injection module" # in 3.6–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.12

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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