masaori335 opened a new pull request, #9169:
URL: https://github.com/apache/trafficserver/pull/9169
Fix below TSan report.
```
WARNING: ThreadSanitizer: data race (pid=2305)
Read of size 8 at 0x00001461a4d0 by thread T4 (mutexes: write M0, write
M1, read M2):
#0 rec_mutex_acquire(RecMutex*) RecMutex.cc:48
(traffic_server:x86_64+0x515e4d) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
#1 RecGetRecord_Xmalloc(char const*, RecDataT, RecData*, bool)
RecCore.cc:931 (traffic_server:x86_64+0x508b88) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
#2 REC_ConfigReadInteger(char const*) RecCore.cc:1064
(traffic_server:x86_64+0x50bb77) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
#3 DiagsLogContinuation::periodic(int, Event*) traffic_server.cc:394
(traffic_server:x86_64+0x7981c) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
#4 EThread::process_event(Event*, int) UnixEThread.cc:153
(traffic_server:x86_64+0x52283b) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
#5 EThread::execute_regular() UnixEThread.cc:258
(traffic_server:x86_64+0x52379f) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
#6 EThread::execute() UnixEThread.cc:349
(traffic_server:x86_64+0x5241d9) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
#7 spawn_thread_internal(void*) Thread.cc:79
(traffic_server:x86_64+0x521258) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
Previous write of size 8 at 0x00001461a4d0 by main thread (mutexes: write
M3, write M4, write M5, write M6, write M7, write M8, write M9, write M10,
write M11, write M12, write M13, write M14, write M15, write M16, write M17):
#0 rec_mutex_acquire(RecMutex*) RecMutex.cc:50
(traffic_server:x86_64+0x515e6e) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
#1 RecConfigWarnIfUnregistered() RecCore.cc:1288
(traffic_server:x86_64+0x50c7fa) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
#2 main traffic_server.cc:2192 (traffic_server:x86_64+0x70767) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
Location is heap block of size 520000 at 0x000014601000 allocated by main
thread:
#0 malloc <null>:293963721
(libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x3732c) (BuildId:
065b6c81cd87343dafd65694f305ecb72400000010000000000a0a0000030c00)
#1 ats_malloc ink_memory.cc:64 (libtscore.10.dylib:x86_64+0x4381f)
(BuildId: 1386e942a0b13818b09d1adaec428fdd32000000200000000100000000000c00)
#2 RecCoreInit(RecModeT, Diags*) RecCore.cc:206
(traffic_server:x86_64+0x507b86) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
#3 RecProcessInit(RecModeT, Diags*) RecProcess.cc:214
(traffic_server:x86_64+0x51b13d) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
#4 main traffic_server.cc:1783 (traffic_server:x86_64+0x6de6a) (BuildId:
fd5ac86be47a3d099e1161ab8724ba5432000000200000000100000000000c00)
```
We probably need to fix `ProxyMutex::thread_holding` too. ( I haven't faced
the TSan report about it yet )
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