On Tue, Jan 20, 2026 at 08:32:37PM +0800, Miaohe Lin wrote: > +# Try to load hwpoison_inject if not present. > +HWPOISON_DIR=/sys/kernel/debug/hwpoison/ > +if [ ! -d "$HWPOISON_DIR" ]; then > + if ! modprobe -q -R hwpoison_inject; then > + echo "Module hwpoison_inject not found, skipping..." > + else > + modprobe hwpoison_inject > /dev/null 2>&1 > + LOADED_MOD=1 > + fi > +fi
You should also add HWPOISION_INJECT and likely also MEMORY_FAILURE (which it depends on) to the config fragment in tools/testing/selftests/mm/config so people and tools know the config options are needed to get all the tests running.
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