CONFIG_ARM_ERRATA_326103: ARM errata: FSR write bit incorrect on a SWP to read-only memory

General informations

The Linux kernel configuration item CONFIG_ARM_ERRATA_326103:

• prompt: ARM errata: FSR write bit incorrect on a SWP to read-only memory
• type: bool
• depends on: CONFIG_CPU_V6
• defined in arch/arm/Kconfig
• found in Linux kernels: 3.4–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

Executing a SWP instruction to read-only memory does not set bit 11 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to treat the access as a read, preventing a COW from occurring and causing the faulting task to livelock.

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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