CONFIG_SMP_ON_UP: Allow booting SMP kernel on uniprocessor systems

General informations

The Linux kernel configuration item CONFIG_SMP_ON_UP has multiple definitions:

Allow booting SMP kernel on uniprocessor systems found in arch/arm/Kconfig

The configuration item CONFIG_SMP_ON_UP:

• prompt: Allow booting SMP kernel on uniprocessor systems
• type: bool
• depends on: CONFIG_SMP && CONFIG_MMU
• defined in arch/arm/Kconfig
• found in Linux kernels: 4.1–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

SMP kernels contain instructions which fail on non-SMP processors. Enabling this option allows the kernel to modify itself to make these instructions safe. Disabling it allows about 1K of space savings.

If you don't know what to do here, say Y.

Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL) found in arch/arm/Kconfig

The configuration item CONFIG_SMP_ON_UP:

• prompt: Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)
• type: bool
• depends on: CONFIG_SMP && ! CONFIG_XIP_KERNEL && CONFIG_MMU
• defined in arch/arm/Kconfig
• found in Linux kernels: 2.6.37–2.6.39, 3.0–3.19, 4.0

Help text

SMP kernels contain instructions which fail on non-SMP processors. Enabling this option allows the kernel to modify itself to make these instructions safe. Disabling it allows about 1K of space savings.

If you don't know what to do here, say Y.

Hardware

LKDDb

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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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