Jiri Daněk created DISPATCH-2070:
------------------------------------
Summary: Data race when incrementing severity_histogram from
logging calls
Key: DISPATCH-2070
URL: https://issues.apache.org/jira/browse/DISPATCH-2070
Project: Qpid Dispatch
Issue Type: Bug
Affects Versions: 1.16.0
Reporter: Jiri Daněk
{noformat}
% TSAN_OPTIONS=second_deadlock_stack=1 router/qdrouterd -c
./tests/system_test.dir/system_tests_policy/LoadPolicyFromFolder/setUpClass/conn-limit-router.conf
-I /home/jdanek/repos/qpid/qpid-dispatch/python
==================
WARNING: ThreadSanitizer: data race (pid=14373)
Read of size 8 at 0x7b1c000006d0 by thread T1:
#0 qd_vlog_impl ../src/log.c:420 (libqpid-dispatch.so+0x791c4)
#1 qd_log_impl ../src/log.c:456 (libqpid-dispatch.so+0x795e8)
#2 qdr_subscribe_CT ../src/router_core/route_tables.c:633
(libqpid-dispatch.so+0xc5d7e)
#3 router_core_thread ../src/router_core/router_core_thread.c:239
(libqpid-dispatch.so+0xc40d7)
#4 _thread_init ../src/posix/threading.c:172 (libqpid-dispatch.so+0x8f3cf)
#5 <null> <null> (libtsan.so.0+0x30f0f)
Previous write of size 8 at 0x7b1c000006d0 by main thread (mutexes: write
M14):
#0 qd_vlog_impl ../src/log.c:420 (libqpid-dispatch.so+0x791d4)
#1 qd_log_impl ../src/log.c:456 (libqpid-dispatch.so+0x795e8)
#2 qdr_protocol_adaptor ../src/router_core/router_core.c:1050
(libqpid-dispatch.so+0xc2f81)
#3 qd_router_setup_late ../src/router_node.c:2121
(libqpid-dispatch.so+0xe3b03)
#4 ffi_call_unix64 <null> (libffi.so.7+0x7abc)
#5 main_process ../router/src/main.c:97 (qdrouterd+0x4025ae)
#6 main ../router/src/main.c:369 (qdrouterd+0x4032ae)
Location is heap block of size 104 at 0x7b1c00000690 allocated by main thread:
#0 malloc <null> (libtsan.so.0+0x33dc1)
#1 qd_malloc ../include/qpid/dispatch/ctools.h:229
(libqpid-dispatch.so+0x78763)
#2 qd_log_source_lh ../src/log.c:367 (libqpid-dispatch.so+0x78763)
#3 qd_log_entity ../src/log.c:545 (libqpid-dispatch.so+0x79c7e)
#4 ffi_call_unix64 <null> (libffi.so.7+0x7abc)
#5 main_process ../router/src/main.c:97 (qdrouterd+0x4025ae)
#6 main ../router/src/main.c:369 (qdrouterd+0x4032ae)
Mutex M14 (0x7b1000000300) created at:
#0 pthread_mutex_init <null> (libtsan.so.0+0x4a764)
#1 sys_mutex ../src/posix/threading.c:43 (libqpid-dispatch.so+0x8f447)
#2 qd_python_initialize ../src/python_embedded.c:54
(libqpid-dispatch.so+0x91ea4)
#3 qd_dispatch ../src/dispatch.c:111 (libqpid-dispatch.so+0x71595)
#4 main_process ../router/src/main.c:92 (qdrouterd+0x40254d)
#5 main ../router/src/main.c:369 (qdrouterd+0x4032ae)
Thread T1 (tid=14376, running) created by main thread at:
#0 pthread_create <null> (libtsan.so.0+0x5cba2)
#1 sys_thread ../src/posix/threading.c:181 (libqpid-dispatch.so+0x8f89b)
#2 qdr_core ../src/router_core/router_core.c:122
(libqpid-dispatch.so+0xbd91b)
#3 qd_router_setup_late ../src/router_node.c:2119
(libqpid-dispatch.so+0xe3a56)
#4 ffi_call_unix64 <null> (libffi.so.7+0x7abc)
#5 main_process ../router/src/main.c:97 (qdrouterd+0x4025ae)
#6 main ../router/src/main.c:369 (qdrouterd+0x4032ae)
SUMMARY: ThreadSanitizer: data race ../src/log.c:420 in qd_vlog_impl
{noformat}
The racy operation is
{code}
source->severity_histogram[level_index]++;
{code}
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