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CONFIG_PAGE_POISONING_ZERO: Use zero for poisoning instead of random data

General informations

The Linux kernel configuration item CONFIG_PAGE_POISONING_ZERO has multiple definitions:

found in mm/Kconfig.debug

The configuration item CONFIG_PAGE_POISONING_ZERO:

Help text

Instead of using the existing poison value, fill the pages with zeros. This makes it harder to detect when errors are occurring due to sanitization but the zeroing at free means that it is no longer necessary to write zeros when GFP_ZERO is used on allocation.

If unsure, say N

Use zero for poisoning instead of random data found in mm/Kconfig.debug

The configuration item CONFIG_PAGE_POISONING_ZERO:

Help text

Instead of using the existing poison value, fill the pages with zeros. This makes it harder to detect when errors are occurring due to sanitization but the zeroing at free means that it is no longer necessary to write zeros when GFP_ZERO is used on allocation.

Enabling page poisoning with this option will disable hibernation

If unsure, say N

Hardware

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