00:08:21.397  ========== Backtrace start: ==========
00:08:21.397  
00:08:21.397  in /home/vagrant/spdk_repo/spdk/test/common/autobuild_common.sh:418 -> _unittest_build([])
00:08:21.397       ...
00:08:21.397     413 		esac
00:08:21.397     414 	}
00:08:21.397     415 	
00:08:21.397     416 	_unittest_build() {
00:08:21.397     417 		"$rootdir/configure" $config_params --without-shared
00:08:21.397  => 418 		$MAKE $MAKEFLAGS
00:08:21.397     419 	}
00:08:21.397     420 	
00:08:21.397     421 	autobuild_test_suite() {
00:08:21.397     422 		run_test "autobuild" _autobuild_test_suite
00:08:21.397     423 	}
00:08:21.397       ...
00:08:21.397  in /home/vagrant/spdk_repo/spdk/test/common/autotest_common.sh:1125 -> run_test(["unittest_build"],["_unittest_build"])
00:08:21.397       ...
00:08:21.397     1120		timing_enter $test_name
00:08:21.397     1121		echo "************************************"
00:08:21.397     1122		echo "START TEST $test_name"
00:08:21.397     1123		echo "************************************"
00:08:21.397     1124		xtrace_restore
00:08:21.397     1125		time "$@"
00:08:21.397     1126		xtrace_disable
00:08:21.397     1127		echo "************************************"
00:08:21.397     1128		echo "END TEST $test_name"
00:08:21.397     1129		echo "************************************"
00:08:21.397     1130		timing_exit $test_name
00:08:21.397       ...
00:08:21.397  in /home/vagrant/spdk_repo/spdk/test/common/autobuild_common.sh:426 -> unittest_build([])
00:08:21.397       ...
00:08:21.397     421 	autobuild_test_suite() {
00:08:21.397     422 		run_test "autobuild" _autobuild_test_suite
00:08:21.397     423 	}
00:08:21.397     424 	
00:08:21.397     425 	unittest_build() {
00:08:21.397  => 426 		run_test "unittest_build" _unittest_build
00:08:21.397     427 	}
00:08:21.397     428 	
00:08:21.397     429 	scanbuild_make() {
00:08:21.397     430 		run_test "scanbuild_make" _scanbuild_make
00:08:21.397     431 	}
00:08:21.397       ...
00:08:21.397  in /home/vagrant/spdk_repo/spdk/autobuild.sh:58 -> main(["/home/vagrant/spdk_repo/autorun-spdk.conf"])
00:08:21.397       ...
00:08:21.397     53  	fi
00:08:21.397     54  	
00:08:21.397     55  	if [[ -n $SPDK_TEST_AUTOBUILD ]]; then
00:08:21.397     56  		autobuild_test_suite
00:08:21.397     57  	elif [[ $SPDK_TEST_UNITTEST -eq 1 ]]; then
00:08:21.397  => 58  		unittest_build
00:08:21.397     59  	elif [[ $SPDK_TEST_SCANBUILD -eq 1 ]]; then
00:08:21.397     60  		scanbuild_make
00:08:21.397     61  	else
00:08:21.397     62  		if [[ $SPDK_TEST_FUZZER -eq 1 ]]; then
00:08:21.397     63  			# if we are testing nvmf fuzz with llvm lib, --with-shared will cause lib link fail
00:08:21.397       ...
00:08:21.397  
00:08:21.397  ========== Backtrace end ==========