In glusterd_op_stage_set_volume, in case of key_fixed we are doing invalid access to key after memory free.
PATCH: http://patches.gluster.com/patch/6513 in master (CLI : Fix memory free for key_fixed.)
PATCH: http://patches.gluster.com/patch/6522 in release-3.1 (CLI : Fix memory free for key_fixed.)
Now glusterd is not crashing if entered wrong key. Now i get following output for the wrong key in volume set root@tortuga:/disk1# gluster volume set hosdu dumbfdstats on option : dumbfdstats does not exist Did you mean dump-fd-stats? root@tortuga:/disk1#