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Closed
Open
Issue created Nov 18, 2019 by Ondřej Surý@ondrejOwner

ThreadSanitizer: data race rbtdb.c:6279 in add32

  • Binary: named
  • Commit: c5b6f215
  • Tests: autosign
WARNING: ThreadSanitizer: data race (pid=45980)
  Write of size 8 at 0x7b200001e9e0 by thread T5 (mutexes: write M1026675012569932440):
    #0 add32 rbtdb.c:6279 (libdns.1503.dylib:x86_64+0xbd702)
    #1 addrdataset rbtdb.c:6599 (libdns.1503.dylib:x86_64+0xb9abc)
    #2 dns_db_addrdataset db.c:744 (libdns.1503.dylib:x86_64+0x2c2ee)
    #3 validated resolver.c:5710 (libdns.1503.dylib:x86_64+0x14b790)
    #4 run task.c:1134 (libisc.1503.dylib:x86_64+0x2c9e1)

  Previous read of size 8 at 0x7b200001e9e0 by thread T8:
    #0 decrement_reference rbtdb.c:1960 (libdns.1503.dylib:x86_64+0xc2bf9)
    #1 detachnode rbtdb.c:5197 (libdns.1503.dylib:x86_64+0xb7024)
    #2 rdataset_disassociate rbtdb.c:8377 (libdns.1503.dylib:x86_64+0xc0330)
    #3 dns_rdataset_disassociate rdataset.c:118 (libdns.1503.dylib:x86_64+0x120089)
    #4 fctx_destroy resolver.c:4395 (libdns.1503.dylib:x86_64+0x130251)
    #5 fctx_doshutdown resolver.c:4570 (libdns.1503.dylib:x86_64+0x14c626)
    #6 run task.c:1134 (libisc.1503.dylib:x86_64+0x2c9e1)

  Location is heap block of size 121 at 0x7b200001e980 allocated by thread T5:
    #0 malloc <null>:5829376 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e65a)
    #1 default_memalloc mem.c:685 (libisc.1503.dylib:x86_64+0x17ae1)
    #2 dns_rbt_addnode rbt.c:1382 (libdns.1503.dylib:x86_64+0xa9d06)
    #3 findnodeintree rbtdb.c:2739 (libdns.1503.dylib:x86_64+0xc896a)
    #4 findnode rbtdb.c:2784 (libdns.1503.dylib:x86_64+0xb532b)
    #5 dns_db_findnode db.c:447 (libdns.1503.dylib:x86_64+0x2b158)
    #6 resquery_response resolver.c:6018 (libdns.1503.dylib:x86_64+0x141e7a)
    #7 run task.c:1134 (libisc.1503.dylib:x86_64+0x2c9e1)

  Mutex M1026675012569932440 is already destroyed.

  Thread T5 (tid=4654358, running) created by main thread at:
    #0 pthread_create <null>:5829424 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x2a9cd)
    #1 isc_thread_create thread.c:75 (libisc.1503.dylib:x86_64+0x46d1c)
    #2 main main.c:902 (named:x86_64+0x10000ad16)

  Thread T8 (tid=4654361, running) created by main thread at:
    #0 pthread_create <null>:5829424 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x2a9cd)
    #1 isc_thread_create thread.c:75 (libisc.1503.dylib:x86_64+0x46d1c)
    #2 main main.c:902 (named:x86_64+0x10000ad16)

SUMMARY: ThreadSanitizer: data race rbtdb.c:6279 in add32
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