CONFIG_DEBUG_PAGE_REF: Enable tracepoint to track down page reference manipulation

General informations

The Linux kernel configuration item CONFIG_DEBUG_PAGE_REF:

• prompt: Enable tracepoint to track down page reference manipulation
• type: bool
• depends on: ( CONFIG_DEBUG_KERNEL ) && ( CONFIG_TRACEPOINTS )
• defined in mm/Kconfig.debug
• found in Linux kernels: 4.6–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

This is a feature to add tracepoint for tracking down page reference manipulation. This tracking is useful to diagnose functional failure due to migration failures caused by page reference mismatches. Be careful when enabling this feature because it adds about 30 KB to the kernel code. However the runtime performance overhead is virtually nil until the tracepoints are actually enabled.

Hardware

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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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