Ken Giusti created PROTON-540: --------------------------------- Summary: [proton-c] Messenger segfault when shutting down Key: PROTON-540 URL: https://issues.apache.org/jira/browse/PROTON-540 Project: Qpid Proton Issue Type: Bug Components: proton-c Affects Versions: 0.7 Reporter: Ken Giusti Fix For: 0.7
The 'star_topology' Messenger test are throwing the occasional seg-fault. Here's a valgrind backtrace: proton_tests.soak.MessengerTests.test_star_topology_valgrind ...................................................................................................... fail Error during test: Traceback (most recent call last): File "./tests/python/proton-test", line 352, in run phase() File "/home/kgiusti/work/proton/0.7/qpid-proton-0.7/tests/python/proton_tests/soak.py", line 348, in test_star_topology_valgrind self._do_star_topology_test( MessengerReceiverValgrind, MessengerSenderValgrind ) File "/home/kgiusti/work/proton/0.7/qpid-proton-0.7/tests/python/proton_tests/soak.py", line 280, in _do_star_topology_test self._do_test(iterations) File "/home/kgiusti/work/proton/0.7/qpid-proton-0.7/tests/python/proton_tests/soak.py", line 112, in _do_test R.stderr())) AssertionError: Command '['/usr/bin/valgrind', '--error-exitcode=1', '--quiet', '--trace-children=yes', '--leak-check=full', '--suppressions=/home/kgiusti/work/proton/0.7/qpid-proton-0.7/tests/python/proton_tests/valgrind.supp', 'msgr-recv', '-X', 'READY', '-a', 'amqp://~0.0.0.0:62305,amqp://~0.0.0.0:57030,amqp://~0.0.0.0:63714', '-c', '1530', '-t', '60', '-R']' failed status=1: '==16855== Invalid read of size 8 ==16855== at 0x4C258CE: pn_compare (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C25959: pn_equals (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C25D79: pn_list_index (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C25DE8: pn_list_remove (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C445FE: pn_listener_ctx_free (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C442D1: pni_listener_finalize (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C4AC22: pn_selectable_finalize (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C25745: pn_finalize (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C256BE: pn_decref (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C257E0: pn_free (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C4B126: pn_selectable_free (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C46AED: pni_wait (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== Address 0x4ea6bb0 is 16 bytes before a block of size 56 alloc'd ==16855== at 0x4A06409: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==16855== by 0x4C443ED: pn_listener_ctx (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4C47928: pn_messenger_subscribe (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/proton-c/libqpid-proton.so.2.0.0) ==16855== by 0x4021CE: main (in /home/kgiusti/work/proton/0.7/qpid-proton-0.7/build/tests/tools/apps/c/msgr-recv) ==16855== The problem is that the pn_listener_ctx is allocated using malloc: pn_listener_ctx_t *ctx = (pn_listener_ctx_t *) malloc(sizeof(pn_listener_ctx_t)); ctx->messenger = messenger; but it is stored on a pn_list (messenger->listeners) - which assumes it is derived from an "object" type. When messenger tries to clean up a listener, the pn_list attempts to access the non-existing clazz header. -- This message was sent by Atlassian JIRA (v6.2#6252)