fuzzy: capture core dumps from repair utilities

Always capture the core dumps when we run repair tools against a fuzzed
filesystem.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

common/fuzzy

@@ -307,6 +307,9 @@ _scratch_xfs_fuzz_metadata() {
 	echo "Verbs we propose to fuzz with:"
 	echo $(echo "${verbs}")
 
+	# Always capture full core dumps from crashing tools
+	ulimit -c unlimited
+
 	echo "${fields}" | while read field; do
 		echo "${verbs}" | while read fuzzverb; do
 			__scratch_xfs_fuzz_mdrestore