TSAN data race in accessing controls->symtab
WARNING: ThreadSanitizer: data race
Read of size 8 at 0x000000000001 by thread T1:
#0 isccc_symtab_foreach lib/isccc/symtab.c:277:14
#1 isccc_cc_cleansymtab lib/isccc/cc.c:954:2
#2 control_recvmessage bin/named/controlconf.c:477:2
#3 recv_data lib/isccc/ccmsg.c:110:2
#4 read_cb lib/isc/netmgr/tcp.c:769:4
#5 <null> <null>
Previous write of size 8 at 0x000000000001 by thread T2:
#0 isccc_symtab_define lib/isccc/symtab.c:242:2
#1 isccc_cc_checkdup lib/isccc/cc.c:1026:11
#2 control_recvmessage bin/named/controlconf.c:478:11
#3 recv_data lib/isccc/ccmsg.c:110:2
#4 read_cb lib/isc/netmgr/tcp.c:769:4
#5 <null> <null>
Location is heap block of size 190352 at 0x000000000011 allocated by main thread:
#0 malloc <null>
#1 isccc_symtab_create lib/isccc/symtab.c:76:18
#2 isccc_cc_createsymtab lib/isccc/cc.c:948:10
#3 named_controls_create bin/named/controlconf.c:1483:11
#4 named_server_create bin/named/server.c:10057:2
#5 setup bin/named/main.c:1256:2
#6 main bin/named/main.c:1523:2
Thread T1 (running) created by main thread at:
#0 pthread_create <null>
#1 isc_thread_create lib/isc/pthreads/thread.c:73:8
#2 isc_nm_start lib/isc/netmgr/netmgr.c:215:3
#3 create_managers bin/named/main.c:909:15
#4 setup bin/named/main.c:1223:11
#5 main bin/named/main.c:1523:2
Thread T2 (running) created by main thread at:
#0 pthread_create <null>
#1 isc_thread_create lib/isc/pthreads/thread.c:73:8
#2 isc_nm_start lib/isc/netmgr/netmgr.c:215:3
#3 create_managers bin/named/main.c:909:15
#4 setup bin/named/main.c:1223:11
#5 main bin/named/main.c:1523:2
SUMMARY: ThreadSanitizer: data race lib/isccc/symtab.c:277:14 in isccc_symtab_foreach
Edited by Mark Andrews
