CONFIG_IOMMU_LEAK: IOMMU leak tracing

General informations

The Linux kernel configuration item CONFIG_IOMMU_LEAK has multiple definitions:

IOMMU leak tracing found in arch/x86/Kconfig.debug

The configuration item CONFIG_IOMMU_LEAK:

• prompt: IOMMU leak tracing
• type: bool
• depends on: CONFIG_IOMMU_DEBUG && CONFIG_DMA_API_DEBUG
• defined in arch/x86/Kconfig.debug
• found in Linux kernels: 2.6.24–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD

Help text

Add a simple leak tracer to the IOMMU code. This is useful when you are debugging a buggy device driver that leaks IOMMU mappings.

IOMMU leak tracing found in arch/x86_64/Kconfig.debug

The configuration item CONFIG_IOMMU_LEAK:

• prompt: IOMMU leak tracing
• type: bool
• depends on: ( CONFIG_DEBUG_KERNEL ) && ( CONFIG_IOMMU_DEBUG )
• defined in arch/x86_64/Kconfig.debug
• found in Linux kernels: 2.6.9–2.6.23

Help text

Add a simple leak tracer to the IOMMU code. This is useful when you are debugging a buggy device driver that leaks IOMMU mappings.

IOMMU leak tracing found in arch/x86_64/Kconfig

The configuration item CONFIG_IOMMU_LEAK:

• prompt: IOMMU leak tracing
• type: bool
• depends on: ( CONFIG_DEBUG_KERNEL ) && ( CONFIG_IOMMU_DEBUG )
• defined in arch/x86_64/Kconfig
• found in Linux kernels: 2.5.67–2.5.75, 2.6.0–2.6.8

Help text

Add a simple leak tracer to the IOMMU code. This is useful when you are debugging a buggy device driver that leaks IOMMU mappings.

Hardware

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The data is retrived from:

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• Linux Kernel Driver DataBase (LKDDb)

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