arch/arm64: handle fatal user exception#18490
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anchao merged 1 commit intoapache:masterfrom Mar 5, 2026
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Arch: arm64
jerpelea
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Mar 4, 2026
Print user exception reason class and description Print register dump Signed-off-by: Jari Nippula <jari.nippula@tii.ae>
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Summary
Add handler to arm64 for unhandled user exception. Print exception reason class and description and dump registers. The exception info collection is moved to separate function to avoid duplicate code.
Impact
When user application/module panics the system does not halt, but only the user process exits.
Testing
Tested with custom target by adding null pointer reference into one of the user modules to generate user exception.
When panic occurs, following is printed into the console:
After the register dump the user process exits and the nsh shell is still alive and usable.