• armv7a/armv8 : Undefined Abort Exception and MMU

    Vincent Siles
    Vincent Siles

    Hi !

    When MMU is enabled, and a undefined abort exception is triggered, are we sure that the address stored in the `lr` / `elr_elx` registers is actually mapped by the MMU, or should I check that before trying to access the address ?

    Best,

    V.

    • Answered
    • over 2 years ago
    • Processors
    • Cortex-A / A-Profile forum
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