00:06:08.722  ========== Backtrace start: ==========
00:06:08.722  
00:06:08.722  in /home/vagrant/spdk_repo/spdk/test/bdev/nbd_common.sh:135 -> nbd_with_lvol_verify(["/var/tmp/spdk-nbd.sock"],["/dev/nbd0"])
00:06:08.722       ...
00:06:08.722     130 	function nbd_with_lvol_verify() {
00:06:08.722     131 		local rpc_server=$1
00:06:08.722     132 		local nbd=$2
00:06:08.722     133 	
00:06:08.722     134 		$rootdir/scripts/rpc.py -s $rpc_server bdev_malloc_create -b malloc_lvol_verify 16 512
00:06:08.722  => 135 		$rootdir/scripts/rpc.py -s $rpc_server bdev_lvol_create_lvstore malloc_lvol_verify lvs
00:06:08.722     136 		$rootdir/scripts/rpc.py -s $rpc_server bdev_lvol_create lvol 4 -l lvs
00:06:08.722     137 		$rootdir/scripts/rpc.py -s $rpc_server nbd_start_disk lvs/lvol "$nbd"
00:06:08.722     138 	
00:06:08.722     139 		wait_for_nbd_set_capacity "$nbd"
00:06:08.722     140 	
00:06:08.722       ...
00:06:08.722  in /home/vagrant/spdk_repo/spdk/test/bdev/blockdev.sh:323 -> nbd_function_test(["/home/vagrant/spdk_repo/spdk/test/bdev/bdev.json"],["Nvme0n1"],[""])
00:06:08.722       ...
00:06:08.722     318 		trap 'cleanup; killprocess $nbd_pid' SIGINT SIGTERM EXIT
00:06:08.722     319 		waitforlisten $nbd_pid $rpc_server
00:06:08.722     320 	
00:06:08.722     321 		nbd_rpc_start_stop_verify $rpc_server "${bdev_list[*]}"
00:06:08.722     322 		nbd_rpc_data_verify $rpc_server "${bdev_list[*]}" "${nbd_list[*]}"
00:06:08.722  => 323 		nbd_with_lvol_verify $rpc_server "${nbd_list[0]}"
00:06:08.722     324 	
00:06:08.722     325 		killprocess $nbd_pid
00:06:08.722     326 		trap - SIGINT SIGTERM EXIT
00:06:08.722     327 	}
00:06:08.722     328 	
00:06:08.722       ...
00:06:08.722  in /home/vagrant/spdk_repo/spdk/test/common/autotest_common.sh:1125 -> run_test(["bdev_nbd"],["nbd_function_test"],["/home/vagrant/spdk_repo/spdk/test/bdev/bdev.json"],["Nvme0n1"],[""])
00:06:08.722       ...
00:06:08.722     1120		timing_enter $test_name
00:06:08.722     1121		echo "************************************"
00:06:08.722     1122		echo "START TEST $test_name"
00:06:08.722     1123		echo "************************************"
00:06:08.722     1124		xtrace_restore
00:06:08.722     1125		time "$@"
00:06:08.722     1126		xtrace_disable
00:06:08.722     1127		echo "************************************"
00:06:08.722     1128		echo "END TEST $test_name"
00:06:08.722     1129		echo "************************************"
00:06:08.722     1130		timing_exit $test_name
00:06:08.722       ...
00:06:08.722  in /home/vagrant/spdk_repo/spdk/test/bdev/blockdev.sh:761 -> main(["nvme"])
00:06:08.722       ...
00:06:08.722     756 	
00:06:08.722     757 	trap "cleanup" SIGINT SIGTERM EXIT
00:06:08.722     758 	
00:06:08.722     759 	run_test "bdev_hello_world" $SPDK_EXAMPLE_DIR/hello_bdev --json "$conf_file" -b "$hello_world_bdev" "$env_ctx"
00:06:08.722     760 	run_test "bdev_bounds" bdev_bounds "$env_ctx"
00:06:08.722  => 761 	run_test "bdev_nbd" nbd_function_test "$conf_file" "${bdevs_name[*]}" "$env_ctx"
00:06:08.722     762 	if [[ $CONFIG_FIO_PLUGIN == y ]]; then
00:06:08.722     763 		if [ "$test_type" = "nvme" ] || [ "$test_type" = "gpt" ]; then
00:06:08.722     764 			# TODO: once we get real multi-ns drives, re-enable this test for NVMe.
00:06:08.722     765 			echo "skipping fio tests on NVMe due to multi-ns failures."
00:06:08.722     766 		else
00:06:08.722       ...
00:06:08.722  
00:06:08.722  ========== Backtrace end ==========
00:06:08.981  ========== Backtrace start: ==========
00:06:08.981  
00:06:08.981  in /home/vagrant/spdk_repo/spdk/test/common/autotest_common.sh:1125 -> run_test(["blockdev_nvme"],["/home/vagrant/spdk_repo/spdk/test/bdev/blockdev.sh"],["nvme"])
00:06:08.981       ...
00:06:08.981     1120		timing_enter $test_name
00:06:08.981     1121		echo "************************************"
00:06:08.981     1122		echo "START TEST $test_name"
00:06:08.981     1123		echo "************************************"
00:06:08.981     1124		xtrace_restore
00:06:08.981     1125		time "$@"
00:06:08.981     1126		xtrace_disable
00:06:08.981     1127		echo "************************************"
00:06:08.981     1128		echo "END TEST $test_name"
00:06:08.981     1129		echo "************************************"
00:06:08.981     1130		timing_exit $test_name
00:06:08.981       ...
00:06:08.981  in /home/vagrant/spdk_repo/spdk/autotest.sh:208 -> main(["/home/vagrant/spdk_repo/autorun-spdk.conf"])
00:06:08.981       ...
00:06:08.981     203 				fi
00:06:08.981     204 			fi
00:06:08.981     205 		fi
00:06:08.981     206 	
00:06:08.981     207 		if [ $SPDK_TEST_NVME -eq 1 ]; then
00:06:08.981  => 208 			run_test "blockdev_nvme" $rootdir/test/bdev/blockdev.sh "nvme"
00:06:08.981     209 			if [[ $(uname -s) == Linux ]]; then
00:06:08.981     210 				run_test "blockdev_nvme_gpt" $rootdir/test/bdev/blockdev.sh "gpt"
00:06:08.981     211 			fi
00:06:08.981     212 			run_test "nvme" $rootdir/test/nvme/nvme.sh
00:06:08.981     213 			if [[ $SPDK_TEST_NVME_PMR -eq 1 ]]; then
00:06:08.981       ...
00:06:08.981  
00:06:08.981  ========== Backtrace end ==========