CONFIG_PM_DISK: Suspend-to-Disk Support

General informations

The Linux kernel configuration item CONFIG_PM_DISK:

• prompt: Suspend-to-Disk Support
• type: bool
• depends on: CONFIG_PM && CONFIG_SWAP && CONFIG_X86 && ! CONFIG_X86_64
• defined in kernel/power/Kconfig
• found in Linux kernels: 2.6.0–2.6.8

Help text

Suspend-to-disk is a power management state in which the contents of memory are stored on disk and the entire system is shut down or put into a low-power state (e.g. ACPI S4). When the computer is turned back on, the stored image is loaded from disk and execution resumes from where it left off before suspending.

This config option enables the core infrastructure necessary to perform the suspend and resume transition.

Currently, this suspend-to-disk implementation is based on a forked version of the swsusp code base. As such, it's still experimental, and still relies on SWAP.

More information can be found in Documentation/power/.

If unsure, Say N.

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