Hi all, This email content might be duplicated with other thread posted in other places that I do not know yet where to find or search (please let me know if it is true). I am working on a small bug of virsh domxml-to-native. Before I made any changes to the code in order to fix the bug, I 'make test'-ed and 'valgrind test'-ed the code, encountered four failures in 'make test' and 19 failures in 'make -C tests valgrind'. What I did today was the following: git checkout master git pull ./autogen.sh --prefix=$(pwd)/build make make install # So far so good, no errors ; however make check VIR_TEST_EXPENSIVE=1 # generated the following test-suite.log ========================================= libvirt 3.2.0: tests/test-suite.log ========================================= # TOTAL: 115 # PASS: 111 # SKIP: 0 # XFAIL: 0 # FAIL: 4 # XPASS: 0 # ERROR: 0 .. contents:: :depth: 2 FAIL: virfirewalltest ===================== TEST: virfirewalltest !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 40 FAIL FAIL virfirewalltest (exit status: 1) FAIL: networkxml2firewalltest ============================= TEST: networkxml2firewalltest 0 FAIL FAIL networkxml2firewalltest (exit status: 1) FAIL: nwfilterebiptablestest ============================ TEST: nwfilterebiptablestest 0 FAIL FAIL nwfilterebiptablestest (exit status: 1) FAIL: nwfilterxml2firewalltest ============================== TEST: nwfilterxml2firewalltest 0 FAIL FAIL nwfilterxml2firewalltest (exit status: 1) make syntax-check VIR_TEST_EXTENSIVE=1 # I did not paste the result here and I do not understand what it means. # available upon request Finally, make -C tests valgrind # generated file was attached. It seems most of the valgrind failures were false positives, I can only tell by comparing the log file with the examples in the HACKING page. But I do not have the knowledge to determine. Could anyone tell me if I am missing something? Having those test failures is a problem or not? Which ones can be safely ignored? Is there any easier way to avoid the false positives? I am concerned because I also need to run the test when I make changes to the code. On the other hand, I would also like to learn the right way to do the testing or whatever it takes to make things right. I am running linux using vmware Workstation Pro 12 on Windows 10. Linux version 4.4.55-1-MANJARO (builduser@manjaro) (gcc version 6.3.1 20170306 (GCC) ) #1 SMP PREEMPT Dan