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Mark Andrews a669c919c8 Address lock order inversions. 
WARNING: ThreadSanitizer: lock-order-inversion (potential deadlock)
    Cycle in lock order graph: M1 (0x000000000000) => M2 (0x000000000000) => M1

    Mutex M2 acquired here while holding mutex M1 in thread T1:
    #0 pthread_mutex_lock <null>
    #1 dns_view_findzonecut lib/dns/view.c:1310:2
    #2 fctx_create lib/dns/resolver.c:5070:13
    #3 dns_resolver_createfetch lib/dns/resolver.c:10813:12
    #4 dns_resolver_prime lib/dns/resolver.c:10442:12
    #5 dns_view_find lib/dns/view.c:1176:4
    #6 dbfind_name lib/dns/adb.c:3833:11
    #7 dns_adb_createfind lib/dns/adb.c:3155:12
    #8 findname lib/dns/resolver.c:3497:11
    #9 fctx_getaddresses lib/dns/resolver.c:3808:3
    #10 fctx_try lib/dns/resolver.c:4197:12
    #11 fctx_start lib/dns/resolver.c:4824:4
    #12 dispatch lib/isc/task.c:1152:7
    #13 run lib/isc/task.c:1344:2

    Mutex M1 previously acquired by the same thread here:
    #0 pthread_mutex_lock <null>
    #1 dns_resolver_createfetch lib/dns/resolver.c:10767:2
    #2 dns_resolver_prime lib/dns/resolver.c:10442:12
    #3 dns_view_find lib/dns/view.c:1176:4
    #4 dbfind_name lib/dns/adb.c:3833:11
    #5 dns_adb_createfind lib/dns/adb.c:3155:12
    #6 findname lib/dns/resolver.c:3497:11
    #7 fctx_getaddresses lib/dns/resolver.c:3808:3
    #8 fctx_try lib/dns/resolver.c:4197:12
    #9 fctx_start lib/dns/resolver.c:4824:4
    #10 dispatch lib/isc/task.c:1152:7
    #11 run lib/isc/task.c:1344:2

    Mutex M1 acquired here while holding mutex M2 in thread T1:
    #0 pthread_mutex_lock <null>
    #1 dns_resolver_shutdown lib/dns/resolver.c:10530:4
    #2 view_flushanddetach lib/dns/view.c:632:4
    #3 dns_view_detach lib/dns/view.c:689:2
    #4 qctx_destroy lib/ns/query.c:5152:2
    #5 fetch_callback lib/ns/query.c:5749:3
    #6 dispatch lib/isc/task.c:1152:7
    #7 run lib/isc/task.c:1344:2

    Mutex M2 previously acquired by the same thread here:
    #0 pthread_mutex_lock <null>
    #1 view_flushanddetach lib/dns/view.c:630:3
    #2 dns_view_detach lib/dns/view.c:689:2
    #3 qctx_destroy lib/ns/query.c:5152:2
    #4 fetch_callback lib/ns/query.c:5749:3
    #5 dispatch lib/isc/task.c:1152:7
    #6 run lib/isc/task.c:1344:2

    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_taskmgr_create lib/isc/task.c:1434:3
    #3 create_managers bin/named/main.c:915:11
    #4 setup bin/named/main.c:1223:11
    #5 main bin/named/main.c:1523:2

    SUMMARY: ThreadSanitizer: lock-order-inversion (potential deadlock) in pthread_mutex_lock
2020-09-23 01:13:28 +00:00
..
bind9 update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
dns Address lock order inversions. 2020-09-23 01:13:28 +00:00
irs update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
isc Handle the errors from sysconf() call in isc_meminfo_totalphys() 2020-09-21 10:55:00 +02:00
isccc update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
isccfg Update library API versions 2020-09-16 22:34:06 +02:00
ns Clone the saved / query message buffers 2020-09-23 10:37:42 +10:00
samples update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
win32/bindevt update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
.gitignore Provide unit test driver 2020-05-21 12:13:01 +02:00
Makefile.am Complete rewrite the BIND 9 build system 2020-04-21 14:19:48 +02:00
unit-test-driver.sh.in Provide unit test driver 2020-05-21 12:13:01 +02:00