Add a test to look for stale data after a file truncation. Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> --- tests/metadata-checksum-test.sh | 47 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/tests/metadata-checksum-test.sh b/tests/metadata-checksum-test.sh index 75b92a0..1f0d5bc 100755 --- a/tests/metadata-checksum-test.sh +++ b/tests/metadata-checksum-test.sh @@ -3184,6 +3184,53 @@ umount "${MNT}" ${fsck_cmd} -f -n "${DEV}" } +########################## +function truncate_stale_test { +msg "truncate_stale_test" +$VALGRIND ${E2FSPROGS}/misc/mke2fs -T ext4icsum $MKFS_OPTS $MKFS_FEATURES -F "${DEV}" 12800 +test -z "$NO_CSUM" && $VALGRIND ${E2FSPROGS}/misc/tune2fs -O metadata_csum $DEV +${E2FSPROGS}/misc/dumpe2fs -h $DEV 2> /dev/null | egrep -q "^Filesystem state:[ ]*clean$" || ${fsck_cmd} -fDy $DEV || true + +# a: truncate, fallocate +# b: truncate, truncate +${mount_cmd} ${MOUNT_OPTS} "${DEV}" "${MNT}" -t ext4 -o journal_checksum +echo "${FUZZ}" > "${MNT}/original" +echo "${FUZZ}" >> "${MNT}/original" +echo "${FUZZ}" >> "${MNT}/original" + +cp "${MNT}/original" "${MNT}/a" +cp "${MNT}/original" "${MNT}/b" + +dd if=/dev/zero of="${MNT}/correct" bs=20480 count=1 +echo -n "${FUZZ}" | dd of="${MNT}/correct" conv=notrunc + +umount "${MNT}" +${fsck_cmd} -f -n "${DEV}" + +${mount_cmd} ${MOUNT_OPTS} "${DEV}" "${MNT}" -t ext4 -o journal_checksum +FUZZ_LEN="${#FUZZ}" +truncate -s "${FUZZ_LEN}" "${MNT}/a" +truncate -s "${FUZZ_LEN}" "${MNT}/b" +umount "${MNT}" +${fsck_cmd} -f -n "${DEV}" + +${mount_cmd} ${MOUNT_OPTS} "${DEV}" "${MNT}" -t ext4 -o journal_checksum +fallocate -l 20k "${MNT}/a" +truncate -s 20k "${MNT}/b" +umount "${MNT}" +${fsck_cmd} -f -n "${DEV}" + +${mount_cmd} ${MOUNT_OPTS} "${DEV}" "${MNT}" -t ext4 -o journal_checksum +for i in a b correct original; do + od -tx1 -Ad -c "${MNT}/${i}" > "${MNT}/${i}.txt" +done +diff -u "${MNT}/original.txt" "${MNT}/correct.txt" || true +diff -u "${MNT}/a.txt" "${MNT}/correct.txt" +diff -u "${MNT}/b.txt" "${MNT}/correct.txt" +umount "${MNT}" +${fsck_cmd} -f -n "${DEV}" +} + # This test should be the last one (before speed tests, anyway) #### ALL SPEED TESTS GO AT THE END -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html