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CONFIG_PAGE_POISONING_ZERO: Use zero for poisoning instead of debugging value

General informations

The Linux kernel configuration item CONFIG_PAGE_POISONING_ZERO has multiple definitions:

Use zero for poisoning instead of debugging value 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

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

Hardware

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