Gordon Sim created DISPATCH-353:
-----------------------------------
Summary: segfault in qd_entity_refresh_connection
Key: DISPATCH-353
URL: https://issues.apache.org/jira/browse/DISPATCH-353
Project: Qpid Dispatch
Issue Type: Bug
Affects Versions: 0.6.0
Reporter: Gordon Sim
{noformat}
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007fa9828c091c in qd_entity_refresh_connection (entity=0x7fa97508eb40,
impl=0x7fa960015480) at /home/gordon/projects/dispatch/src/server.c:342
342 conn->connector ? conn->connector->config :
conn->listener->config;
[Current thread is 1 (Thread 0x7fa96ffff700 (LWP 31641))]
Missing separate debuginfos, use: dnf debuginfo-install
cyrus-sasl-gssapi-2.1.26-25.2.fc23.x86_64
cyrus-sasl-lib-2.1.26-25.2.fc23.x86_64 cyrus-sasl-md5-2.1.26-25.2.fc23.x86_64
cyrus-sasl-plain-2.1.26-25.2.fc23.x86_64
cyrus-sasl-scram-2.1.26-25.2.fc23.x86_64 glibc-2.22-11.fc23.x86_64
keyutils-libs-1.5.9-7.fc23.x86_64 krb5-libs-1.14.1-3.fc23.x86_64
libcom_err-1.42.13-3.fc23.x86_64 libdb-5.3.28-13.fc23.x86_64
libffi-3.1-8.fc23.x86_64 libselinux-2.4-4.fc23.x86_64
nss-softokn-freebl-3.23.0-1.0.fc23.x86_64 openssl-libs-1.0.2g-2.fc23.x86_64
pcre-8.38-7.fc23.x86_64 python-libs-2.7.10-8.fc23.x86_64
sssd-client-1.13.3-5.fc23.x86_64 zlib-1.2.8-9.fc23.x86_64
(gdb) bt
#0 0x00007fa9828c091c in qd_entity_refresh_connection (entity=0x7fa97508eb40,
impl=0x7fa960015480) at /home/gordon/projects/dispatch/src/server.c:342
#1 0x00007fa977eaad30 in ffi_call_unix64 () from /lib64/libffi.so.6
#2 0x00007fa977eaa79b in ffi_call () from /lib64/libffi.so.6
#3 0x00007fa9780bddaf in _ctypes_callproc () from
/usr/lib64/python2.7/lib-dynload/_ctypes.so
#4 0x00007fa9780b79d4 in PyCFuncPtr_call () from
/usr/lib64/python2.7/lib-dynload/_ctypes.so
#5 0x00007fa981c92b03 in PyObject_Call () from /lib64/libpython2.7.so.1.0
#6 0x00007fa981d28a68 in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0
#7 0x00007fa981d2a666 in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0
#8 0x00007fa981d2a666 in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0
#9 0x00007fa981d2b6b4 in PyEval_EvalCodeEx () from /lib64/libpython2.7.so.1.0
#10 0x00007fa981d2a5c6 in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0
#11 0x00007fa981d2b6b4 in PyEval_EvalCodeEx () from /lib64/libpython2.7.so.1.0
#12 0x00007fa981cb75ac in function_call () from /lib64/libpython2.7.so.1.0
#13 0x00007fa981c92b03 in PyObject_Call () from /lib64/libpython2.7.so.1.0
#14 0x00007fa981ca195c in instancemethod_call () from /lib64/libpython2.7.so.1.0
#15 0x00007fa981c92b03 in PyObject_Call () from /lib64/libpython2.7.so.1.0
#16 0x00007fa981c92be5 in call_function_tail () from /lib64/libpython2.7.so.1.0
#17 0x00007fa981c92cce in PyObject_CallFunction () from
/lib64/libpython2.7.so.1.0
#18 0x00007fa9828b0917 in qd_io_rx_handler (context=0x7fa975026fc0,
msg=0x1a1e8c0, link_id=0) at
/home/gordon/projects/dispatch/src/python_embedded.c:516
#19 0x00007fa9828b6be2 in qdr_forward_on_message (core=<optimized out>,
work=0x7fa97004d7c0) at
/home/gordon/projects/dispatch/src/router_core/forwarder.c:121
#20 0x00007fa9828b8d34 in qdr_general_handler (context=0x199e180) at
/home/gordon/projects/dispatch/src/router_core/router_core.c:341
#21 0x00007fa9828c11e5 in thread_run (arg=0x19b79d0) at
/home/gordon/projects/dispatch/src/server.c:822
#22 0x00007fa98242460a in start_thread () from /lib64/libpthread.so.0
#23 0x00007fa981989a4d in clone () from /lib64/libc.so.6
(gdb) frame 0
#0 0x00007fa9828c091c in qd_entity_refresh_connection (entity=0x7fa97508eb40,
impl=0x7fa960015480) at /home/gordon/projects/dispatch/src/server.c:342
342 conn->connector ? conn->connector->config :
conn->listener->config;
(gdb) print conn
$1 = (qd_connection_t *) 0x7fa960015480
(gdb) print conn->connector
$2 = (qd_connector_t *) 0x0
(gdb) print conn->listener
$3 = (qd_listener_t *) 0x0
(gdb)
{noformat}
I don't have the exact steps that caused this yet, but core dump shows the
basic problem: neither connector nor listener is set and there is no check for
this.
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