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  • #1485
Closed
Open
Created Dec 11, 2019 by Ondřej Surý@ondrejOwner

ThreadSanitizer: data race (bin/named/.libs/named+0x449fe2) in ns__client_setup lib/ns/client.c:2278:13

There are more variants where the second thread runs:

  • fetch_callback()
WARNING: ThreadSanitizer: data race
  Write of size 8 at 0x000000000001 by thread T1:
    #0 memset <null>
    #1 ns__client_setup lib/ns/client.c:2278:13
    #2 ns__client_request lib/ns/client.c:1643:12
    #3 processbuffer lib/isc/netmgr/tcpdns.c:177:3
    #4 dnslisten_readcb lib/isc/netmgr/tcpdns.c:231:12
    #5 read_cb lib/isc/netmgr/tcp.c:768:4
    #6 <null> <null>

  Previous read of size 8 at 0x000000000001 by thread T2:
    #0 fetch_callback lib/ns/query.c:5680:29
    #1 dispatch lib/isc/task.c:1143:7
    #2 run lib/isc/task.c:1328:2

  Location is heap block of size 7489 at 0x000000000012 allocated by thread T1:
    #0 malloc <null>
    #1 default_memalloc lib/isc/mem.c:685:8
    #2 mem_get lib/isc/mem.c:598:8
    #3 mem_allocateunlocked lib/isc/mem.c:1222:8
    #4 isc___mem_allocate lib/isc/mem.c:1242:7
    #5 isc__mem_allocate lib/isc/mem.c:2387:10
    #6 isc___mem_get lib/isc/mem.c:1007:11
    #7 isc__mem_get lib/isc/mem.c:2365:10
    #8 alloc_handle lib/isc/netmgr/netmgr.c:918:3
    #9 isc__nmhandle_get lib/isc/netmgr/netmgr.c:942:12
    #10 processbuffer lib/isc/netmgr/tcpdns.c:176:15
    #11 dnslisten_readcb lib/isc/netmgr/tcpdns.c:231:12
    #12 read_cb lib/isc/netmgr/tcp.c:768:4
    #13 <null> <null>

  Thread T1 (running) created by main thread at:
    #0 pthread_create <null>
    #1 isc_thread_create lib/isc/pthreads/thread.c:75:8
    #2 isc_nm_start lib/isc/netmgr/netmgr.c:149:3
    #3 create_managers bin/named/./main.c:895:15
    #4 setup bin/named/./main.c:1235:11
    #5 main bin/named/./main.c:1515:2

  Thread T2 (running) created by main thread at:
    #0 pthread_create <null>
    #1 isc_thread_create lib/isc/pthreads/thread.c:75:8
    #2 isc_taskmgr_create lib/isc/task.c:1419:3
    #3 create_managers bin/named/./main.c:902:11
    #4 setup bin/named/./main.c:1235:11
    #5 main bin/named/./main.c:1515:2

SUMMARY: ThreadSanitizer: data race in memset
WARNING: ThreadSanitizer: data race
  Write of size 8 at 0x000000000001 by thread T1:
    #0 memset <null>
    #1 ns__client_setup lib/ns/client.c:2278:13
    #2 ns__client_request lib/ns/client.c:1643:12
    #3 udp_recv_cb lib/isc/netmgr/udp.c:317:2
    #4 <null> <null>

  Previous read of size 8 at 0x000000000001 by thread T2:
    #0 fetch_callback lib/ns/query.c:5680:29
    #1 dispatch lib/isc/task.c:1143:7
    #2 run lib/isc/task.c:1328:2

  Location is heap block of size 7489 at 0x000000000010 allocated by thread T1:
    #0 malloc <null>
    #1 default_memalloc lib/isc/mem.c:685:8
    #2 mem_get lib/isc/mem.c:598:8
    #3 mem_allocateunlocked lib/isc/mem.c:1222:8
    #4 isc___mem_allocate lib/isc/mem.c:1242:7
    #5 isc__mem_allocate lib/isc/mem.c:2387:10
    #6 isc___mem_get lib/isc/mem.c:1007:11
    #7 isc__mem_get lib/isc/mem.c:2365:10
    #8 alloc_handle lib/isc/netmgr/netmgr.c:918:3
    #9 isc__nmhandle_get lib/isc/netmgr/netmgr.c:942:12
    #10 udp_recv_cb lib/isc/netmgr/udp.c:312:13
    #11 <null> <null>

  Thread T1 (running) created by main thread at:
    #0 pthread_create <null>
    #1 isc_thread_create lib/isc/pthreads/thread.c:75:8
    #2 isc_nm_start lib/isc/netmgr/netmgr.c:149:3
    #3 create_managers bin/named/./main.c:895:15
    #4 setup bin/named/./main.c:1235:11
    #5 main bin/named/./main.c:1515:2

  Thread T2 (running) created by main thread at:
    #0 pthread_create <null>
    #1 isc_thread_create lib/isc/pthreads/thread.c:75:8
    #2 isc_taskmgr_create lib/isc/task.c:1419:3
    #3 create_managers bin/named/./main.c:902:11
    #4 setup bin/named/./main.c:1235:11
    #5 main bin/named/./main.c:1515:2

SUMMARY: ThreadSanitizer: data race in memset
  • isc_sockaddr_pf()
WARNING: ThreadSanitizer: data race
  Write of size 8 at 0x000000000001 by thread T1:
    #0 memset <null>
    #1 ns__client_setup lib/ns/client.c:2278:13
    #2 ns__client_request lib/ns/client.c:1643:12
    #3 udp_recv_cb lib/isc/netmgr/udp.c:317:2
    #4 <null> <null>

  Previous read of size 2 at 0x000000000001 by thread T2:
    #0 isc_sockaddr_pf lib/isc/sockaddr.c:326:28
    #1 ns_client_send lib/ns/client.c:633:11
    #2 respond lib/ns/update.c:1559:2
    #3 updatedone_action lib/ns/update.c:3391:2
    #4 dispatch lib/isc/task.c:1143:7
    #5 run lib/isc/task.c:1328:2

  Location is heap block of size 7473 at 0x000000000013 allocated by thread T1:
    #0 malloc <null>
    #1 default_memalloc lib/isc/mem.c:685:8
    #2 mem_get lib/isc/mem.c:598:8
    #3 isc___mem_get lib/isc/mem.c:1013:9
    #4 isc__mem_get lib/isc/mem.c:2365:10
    #5 alloc_handle lib/isc/netmgr/netmgr.c:918:3
    #6 isc__nmhandle_get lib/isc/netmgr/netmgr.c:942:12
    #7 udp_recv_cb lib/isc/netmgr/udp.c:312:13
    #8 <null> <null>

  Thread T1 (running) created by main thread at:
    #0 pthread_create <null>
    #1 isc_thread_create lib/isc/pthreads/thread.c:75:8
    #2 isc_nm_start lib/isc/netmgr/netmgr.c:149:3
    #3 create_managers bin/named/./main.c:895:15
    #4 setup bin/named/./main.c:1235:11
    #5 main bin/named/./main.c:1515:2

  Thread T2 (running) created by main thread at:
    #0 pthread_create <null>
    #1 isc_thread_create lib/isc/pthreads/thread.c:75:8
    #2 isc_taskmgr_create lib/isc/task.c:1419:3
    #3 create_managers bin/named/./main.c:902:11
    #4 setup bin/named/./main.c:1235:11
    #5 main bin/named/./main.c:1515:2

SUMMARY: ThreadSanitizer: data race in memset
  • updatedone_action()
WARNING: ThreadSanitizer: data race
  Write of size 8 at 0x000000000001 by thread T1:
    #0 memset <null>
    #1 ns__client_setup lib/ns/client.c:2278:13
    #2 ns__client_request lib/ns/client.c:1643:12
    #3 udp_recv_cb lib/isc/netmgr/udp.c:317:2
    #4 <null> <null>

  Previous read of size 8 at 0x000000000001 by thread T2:
    #0 updatedone_action lib/ns/update.c:3393:29
    #1 dispatch lib/isc/task.c:1143:7
    #2 run lib/isc/task.c:1328:2

  Location is heap block of size 7473 at 0x000000000010 allocated by thread T1:
    #0 malloc <null>
    #1 default_memalloc lib/isc/mem.c:685:8
    #2 mem_get lib/isc/mem.c:598:8
    #3 isc___mem_get lib/isc/mem.c:1013:9
    #4 isc__mem_get lib/isc/mem.c:2365:10
    #5 alloc_handle lib/isc/netmgr/netmgr.c:918:3
    #6 isc__nmhandle_get lib/isc/netmgr/netmgr.c:942:12
    #7 udp_recv_cb lib/isc/netmgr/udp.c:312:13
    #8 <null> <null>

  Thread T1 (running) created by main thread at:
    #0 pthread_create <null>
    #1 isc_thread_create lib/isc/pthreads/thread.c:75:8
    #2 isc_nm_start lib/isc/netmgr/netmgr.c:149:3
    #3 create_managers bin/named/./main.c:895:15
    #4 setup bin/named/./main.c:1235:11
    #5 main bin/named/./main.c:1515:2

  Thread T2 (running) created by main thread at:
    #0 pthread_create <null>
    #1 isc_thread_create lib/isc/pthreads/thread.c:75:8
    #2 isc_taskmgr_create lib/isc/task.c:1419:3
    #3 create_managers bin/named/./main.c:902:11
    #4 setup bin/named/./main.c:1235:11
    #5 main bin/named/./main.c:1515:2

SUMMARY: ThreadSanitizer: data race in memset
WARNING: ThreadSanitizer: data race
  Write of size 8 at 0x000000000001 by thread T1:
    #0 memset <null>
    #1 ns__client_setup lib/ns/client.c:2278:13
    #2 ns__client_request lib/ns/client.c:1643:12
    #3 udp_recv_cb lib/isc/netmgr/udp.c:317:2
    #4 <null> <null>

  Previous read of size 8 at 0x000000000001 by thread T2:
    #0 updatedone_action lib/ns/update.c:3393:29
    #1 dispatch lib/isc/task.c:1143:7
    #2 run lib/isc/task.c:1328:2

  Location is heap block of size 7489 at 0x000000000010 allocated by thread T1:
    #0 malloc <null>
    #1 default_memalloc lib/isc/mem.c:685:8
    #2 mem_get lib/isc/mem.c:598:8
    #3 mem_allocateunlocked lib/isc/mem.c:1222:8
    #4 isc___mem_allocate lib/isc/mem.c:1242:7
    #5 isc__mem_allocate lib/isc/mem.c:2387:10
    #6 isc___mem_get lib/isc/mem.c:1007:11
    #7 isc__mem_get lib/isc/mem.c:2365:10
    #8 alloc_handle lib/isc/netmgr/netmgr.c:918:3
    #9 isc__nmhandle_get lib/isc/netmgr/netmgr.c:942:12
    #10 udp_recv_cb lib/isc/netmgr/udp.c:312:13
    #11 <null> <null>

  Thread T1 (running) created by main thread at:
    #0 pthread_create <null>
    #1 isc_thread_create lib/isc/pthreads/thread.c:75:8
    #2 isc_nm_start lib/isc/netmgr/netmgr.c:149:3
    #3 create_managers bin/named/./main.c:895:15
    #4 setup bin/named/./main.c:1235:11
    #5 main bin/named/./main.c:1515:2

  Thread T2 (running) created by main thread at:
    #0 pthread_create <null>
    #1 isc_thread_create lib/isc/pthreads/thread.c:75:8
    #2 isc_taskmgr_create lib/isc/task.c:1419:3
    #3 create_managers bin/named/./main.c:902:11
    #4 setup bin/named/./main.c:1235:11
    #5 main bin/named/./main.c:1515:2

SUMMARY: ThreadSanitizer: data race in memset
Edited Dec 12, 2019 by Ondřej Surý
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