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CONFIG_PFAULT: Pseudo page fault support

General informations

The Linux kernel configuration item CONFIG_PFAULT has multiple definitions:

Pseudo page fault support found in arch/s390/Kconfig

The configuration item CONFIG_PFAULT:

Help text

Select this option, if you want to use PFAULT pseudo page fault handling under VM. If running native or in LPAR, this option has no effect. If your VM does not support PFAULT, PAGEEX pseudo page fault handling will be used. Note that VM 4.2 supports PFAULT but has a bug in its implementation that causes some problems. Everybody who wants to run Linux under VM != VM4.2 should select this option.

Pseudo page fault support found in arch/s390x/Kconfig

The configuration item CONFIG_PFAULT:

Help text

Select this option, if you want to use PFAULT pseudo page fault handling under VM. If running native or in LPAR, this option has no effect. If your VM does not support PFAULT, PAGEEX pseudo page fault handling will be used. Note that VM 4.2 supports PFAULT but has a bug in its implementation that causes some problems. Everybody who wants to run Linux under VM != VM4.2 should select this option.

Hardware

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