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Opened by Ondřej Surý@ondrej
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SUMMARY: ThreadSanitizer: lock-order-inversion (potential deadlock) (/usr/lib/x86_64-linux-gnu/libtsan.so.0+0x3d62b) in pthread_mutex_lock

  • Binary: named, delv, dig, dnssec-signzone, ...
  • Commit: 289f143d
  • Tests: all of them
WARNING: ThreadSanitizer: lock-order-inversion (potential deadlock) (pid=22334)
  Cycle in lock order graph: M1113 (0x7b7400000058) => M1728 (0x7b4c000001d0) => M1113

  Mutex M1728 acquired here while holding mutex M1113 in main thread:
    #0 pthread_mutex_lock <null> (libtsan.so.0+0x3d62b)
    #1 fcount_incr /home/ondrej/Projects/bind9/lib/dns/resolver.c:1524 (libdns.so.1505+0x185f18)
    #2 fctx_create /home/ondrej/Projects/bind9/lib/dns/resolver.c:4928 (libdns.so.1505+0x191103)
    #3 dns_resolver_createfetch /home/ondrej/Projects/bind9/lib/dns/resolver.c:10584 (libdns.so.1505+0x198031)
    #4 start_fetch /home/ondrej/Projects/bind9/lib/dns/client.c:777 (libdns.so.1505+0x27dbea)
    #5 client_resfind /home/ondrej/Projects/bind9/lib/dns/client.c:862 (libdns.so.1505+0x27dbea)
    #6 dns_client_startresolve /home/ondrej/Projects/bind9/lib/dns/client.c:1388 (libdns.so.1505+0x28258c)
    #7 dns_client_resolve /home/ondrej/Projects/bind9/lib/dns/client.c:1249 (libdns.so.1505+0x283e81)
    #8 main /home/ondrej/Projects/bind9/bin/delv/delv.c:1788 (delv+0x5d92)

  Mutex M1113 previously acquired by the same thread here:
    #0 pthread_mutex_lock <null> (libtsan.so.0+0x3d62b)
    #1 dns_resolver_createfetch /home/ondrej/Projects/bind9/lib/dns/resolver.c:10541 (libdns.so.1505+0x197725)
    #2 start_fetch /home/ondrej/Projects/bind9/lib/dns/client.c:777 (libdns.so.1505+0x27dbea)
    #3 client_resfind /home/ondrej/Projects/bind9/lib/dns/client.c:862 (libdns.so.1505+0x27dbea)
    #4 dns_client_startresolve /home/ondrej/Projects/bind9/lib/dns/client.c:1388 (libdns.so.1505+0x28258c)
    #5 dns_client_resolve /home/ondrej/Projects/bind9/lib/dns/client.c:1249 (libdns.so.1505+0x283e81)
    #6 main /home/ondrej/Projects/bind9/bin/delv/delv.c:1788 (delv+0x5d92)

  Mutex M1113 acquired here while holding mutex M1728 in main thread:
    #0 pthread_mutex_lock <null> (libtsan.so.0+0x3d62b)
    #1 dns_resolver_shutdown /home/ondrej/Projects/bind9/lib/dns/resolver.c:10308 (libdns.so.1505+0x1971c4)
    #2 view_flushanddetach /home/ondrej/Projects/bind9/lib/dns/view.c:582 (libdns.so.1505+0x1fcdcd)
    #3 dns_view_detach /home/ondrej/Projects/bind9/lib/dns/view.c:635 (libdns.so.1505+0x1fcebe)
    #4 destroyclient /home/ondrej/Projects/bind9/lib/dns/client.c:611 (libdns.so.1505+0x281a6c)
    #5 dns_client_destroy /home/ondrej/Projects/bind9/lib/dns/client.c:652 (libdns.so.1505+0x281a6c)
    #6 main /home/ondrej/Projects/bind9/bin/delv/delv.c:1827 (delv+0x3bf2)

  Mutex M1728 previously acquired by the same thread here:
    #0 pthread_mutex_lock <null> (libtsan.so.0+0x3d62b)
    #1 dns_resolver_shutdown /home/ondrej/Projects/bind9/lib/dns/resolver.c:10303 (libdns.so.1505+0x1970f7)
    #2 view_flushanddetach /home/ondrej/Projects/bind9/lib/dns/view.c:582 (libdns.so.1505+0x1fcdcd)
    #3 dns_view_detach /home/ondrej/Projects/bind9/lib/dns/view.c:635 (libdns.so.1505+0x1fcebe)
    #4 destroyclient /home/ondrej/Projects/bind9/lib/dns/client.c:611 (libdns.so.1505+0x281a6c)
    #5 dns_client_destroy /home/ondrej/Projects/bind9/lib/dns/client.c:652 (libdns.so.1505+0x281a6c)
    #6 main /home/ondrej/Projects/bind9/bin/delv/delv.c:1827 (delv+0x3bf2)

SUMMARY: ThreadSanitizer: lock-order-inversion (potential deadlock) (/usr/lib/x86_64-linux-gnu/libtsan.so.0+0x3d62b) in pthread_mutex_lock

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