Issue created by Sebastian Huber: 
https://gitlab.rtems.org/rtems/rtos/rtems/-/work_items/5704



The BSP uses the MMU stub, so the MMU stays off and all memory is
Device-nGnRnE. Unaligned accesses and DC ZVA are not permitted for that memory
type, and the `memset()` of the C library uses both, so `bsp_start_clear_bss()`
raises an alignment fault whenever the size of the `.bss` section is not a
multiple of 16 bytes. That is the case for almost every executable, so no test
can run.

Found while running the full test suite on Qemu. This description was created
with Claude Code assistance.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/work_items/5704
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