Solve: SUMMARY: ThreadSanitizer: data race /home/ec2-user/work/git/wiredtiger-arm/src/support/mtx_rw.c:168:71 in __read_blocked

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    • Storage Engines, Storage Engines - Foundations
    • SE Foundations - 2025-07-18
    • 1

      TSAN Warning:

       

      ==================WARNING: ThreadSanitizer: data race (pid=39828)  Read of size 1 at 0xffff9b500a68 by thread T3 (mutexes: write M0):    #0 __read_blocked /home/ec2-user/work/git/wiredtiger-arm/src/support/mtx_rw.c:168:71 (libwiredtiger.so.12.0.0+0x32dbc0)    #1 __wt_cond_wait_signal /home/ec2-user/work/git/wiredtiger-arm/src/os_posix/os_mtx_cond.c:92:30 (libwiredtiger.so.12.0.0+0x27d29c)    #2 __wt_cond_wait /home/ec2-user/work/git/wiredtiger-arm/src/include/misc_inline.h:21:5 (libwiredtiger.so.12.0.0+0x32d698)    #3 __wt_readlock /home/ec2-user/work/git/wiredtiger-arm/src/support/mtx_rw.c:250:13 (libwiredtiger.so.12.0.0+0x32d698)    #4 __session_find_shared_dhandle /home/ec2-user/work/git/wiredtiger-arm/src/session/session_dhandle.c:841:5 (libwiredtiger.so.12.0.0+0x30c5f0)    #5 __session_get_dhandle /home/ec2-user/work/git/wiredtiger-arm/src/session/session_dhandle.c:878:5 (libwiredtiger.so.12.0.0+0x30c5f0)    #6 __wt_session_get_dhandle /home/ec2-user/work/git/wiredtiger-arm/src/session/session_dhandle.c:908:9 (libwiredtiger.so.12.0.0+0x30b820)    #7 __wt_session_get_btree_ckpt /home/ec2-user/work/git/wiredtiger-arm/src/session/session_dhandle.c:469:17 (libwiredtiger.so.12.0.0+0x30ada4)    #8 __wt_curfile_open /home/ec2-user/work/git/wiredtiger-arm/src/cursor/cur_file.c (libwiredtiger.so.12.0.0+0x197574)    #9 __session_open_cursor_int /home/ec2-user/work/git/wiredtiger-arm/src/session/session_api.c:697:17 (libwiredtiger.so.12.0.0+0x2e43c0)    #10 __wt_open_cursor /home/ec2-user/work/git/wiredtiger-arm/src/session/session_api.c:795:13 (libwiredtiger.so.12.0.0+0x2e40a0)    #11 __curhs_file_cursor_open /home/ec2-user/work/git/wiredtiger-arm/src/cursor/cur_hs.c:49:5 (libwiredtiger.so.12.0.0+0x1a7d2c)    #12 __wt_curhs_cache /home/ec2-user/work/git/wiredtiger-arm/src/cursor/cur_hs.c:103:5 (libwiredtiger.so.12.0.0+0x1a7b2c)    #13 __evict_thread_run /home/ec2-user/work/git/wiredtiger-arm/src/evict/evict_lru.c:320:5 (libwiredtiger.so.12.0.0+0x20f6f8)    #14 __thread_run /home/ec2-user/work/git/wiredtiger-arm/src/support/thread_group.c:31:9 (libwiredtiger.so.12.0.0+0x34d1ec)
        Previous atomic write of size 8 at 0xffff9b500a68 by thread T5:    #0 __wt_atomic_casv64 /home/ec2-user/work/git/wiredtiger-arm/src/include/gcc.h:60:1 (libwiredtiger.so.12.0.0+0x32e1cc)    #1 __wt_writelock /home/ec2-user/work/git/wiredtiger-arm/src/support/mtx_rw.c:414:13 (libwiredtiger.so.12.0.0+0x32e1cc)    #2 __session_find_shared_dhandle /home/ec2-user/work/git/wiredtiger-arm/src/session/session_dhandle.c:848:5 (libwiredtiger.so.12.0.0+0x30c6ac)    #3 __session_get_dhandle /home/ec2-user/work/git/wiredtiger-arm/src/session/session_dhandle.c:878:5 (libwiredtiger.so.12.0.0+0x30c6ac)    #4 __wt_session_get_dhandle /home/ec2-user/work/git/wiredtiger-arm/src/session/session_dhandle.c:908:9 (libwiredtiger.so.12.0.0+0x30b820)    #5 __wt_session_get_btree_ckpt /home/ec2-user/work/git/wiredtiger-arm/src/session/session_dhandle.c:469:17 (libwiredtiger.so.12.0.0+0x30ada4)    #6 __wt_curfile_open /home/ec2-user/work/git/wiredtiger-arm/src/cursor/cur_file.c (libwiredtiger.so.12.0.0+0x197574)    #7 __session_open_cursor_int /home/ec2-user/work/git/wiredtiger-arm/src/session/session_api.c:697:17 (libwiredtiger.so.12.0.0+0x2e43c0)    #8 __wt_open_cursor /home/ec2-user/work/git/wiredtiger-arm/src/session/session_api.c:795:13 (libwiredtiger.so.12.0.0+0x2e40a0)    #9 __curhs_file_cursor_open /home/ec2-user/work/git/wiredtiger-arm/src/cursor/cur_hs.c:49:5 (libwiredtiger.so.12.0.0+0x1a7d2c)    #10 __wt_curhs_cache /home/ec2-user/work/git/wiredtiger-arm/src/cursor/cur_hs.c:103:5 (libwiredtiger.so.12.0.0+0x1a7b2c)    #11 __evict_thread_run /home/ec2-user/work/git/wiredtiger-arm/src/evict/evict_lru.c:320:5 (libwiredtiger.so.12.0.0+0x20f6f8)    #12 __thread_run /home/ec2-user/work/git/wiredtiger-arm/src/support/thread_group.c:31:9 (libwiredtiger.so.12.0.0+0x34d1ec)
        Location is heap block of size 8448 at 0xffff9b500000 allocated by main thread:    #0 calloc /data/mci/0701f0b853b8865c4e2f06b43ba791fc/toolchain-builder/tmp/build-llvm-v5.sh-u2l/llvm-project-llvmorg/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:686:5 (wt+0x69864)    #1 __wt_calloc /home/ec2-user/work/git/wiredtiger-arm/src/os_common/os_alloc.c:68:14 (libwiredtiger.so.12.0.0+0x270454)    #2 wiredtiger_open /home/ec2-user/work/git/wiredtiger-arm/src/conn/conn_api.c:2929:5 (libwiredtiger.so.12.0.0+0x141c30)    #3 main /home/ec2-user/work/git/wiredtiger-arm/src/utilities/util_main.c:334:16 (wt+0xf8b00)
        Mutex M0 (0xffff9b102138) created at:    #0 pthread_mutex_init /data/mci/0701f0b853b8865c4e2f06b43ba791fc/toolchain-builder/tmp/build-llvm-v5.sh-u2l/llvm-project-llvmorg/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:1327:3 (wt+0x6d474)    #1 __wt_cond_alloc /home/ec2-user/work/git/wiredtiger-arm/src/os_posix/os_mtx_cond.c:22:5 (libwiredtiger.so.12.0.0+0x27ce5c)    #2 __wt_rwlock_init /home/ec2-user/work/git/wiredtiger-arm/src/support/mtx_rw.c:102:5 (libwiredtiger.so.12.0.0+0x32d040)    #3 __wti_connection_init /home/ec2-user/work/git/wiredtiger-arm/src/conn/conn_handle.c:68:5 (libwiredtiger.so.12.0.0+0x160520)    #4 wiredtiger_open /home/ec2-user/work/git/wiredtiger-arm/src/conn/conn_api.c:2945:5 (libwiredtiger.so.12.0.0+0x141d8c)    #5 main /home/ec2-user/work/git/wiredtiger-arm/src/utilities/util_main.c:334:16 (wt+0xf8b00)
        Thread T3 'eviction-ser 2' (tid=39832, running) created by main thread at:    #0 pthread_create /data/mci/0701f0b853b8865c4e2f06b43ba791fc/toolchain-builder/tmp/build-llvm-v5.sh-u2l/llvm-project-llvmorg/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:1023:3 (wt+0x6b594)    #1 __wt_thread_create /home/ec2-user/work/git/wiredtiger-arm/src/os_posix/os_thread.c:60:5 (libwiredtiger.so.12.0.0+0x27dffc)    #2 __thread_group_resize /home/ec2-user/work/git/wiredtiger-arm/src/support/thread_group.c:203:9 (libwiredtiger.so.12.0.0+0x34bf98)    #3 __wt_thread_group_create /home/ec2-user/work/git/wiredtiger-arm/src/support/thread_group.c:289:5 (libwiredtiger.so.12.0.0+0x34c4c4)    #4 __wt_evict_threads_create /home/ec2-user/work/git/wiredtiger-arm/src/evict/evict_lru.c:597:5 (libwiredtiger.so.12.0.0+0x20f488)    #5 __wt_txn_recover /home/ec2-user/work/git/wiredtiger-arm/src/txn/txn_recover.c:1139:5 (libwiredtiger.so.12.0.0+0x367444)    #6 __wti_connection_workers /home/ec2-user/work/git/wiredtiger-arm/src/conn/conn_open.c:260:5 (libwiredtiger.so.12.0.0+0x169fa8)    #7 wiredtiger_open /home/ec2-user/work/git/wiredtiger-arm/src/conn/conn_api.c:3324:5 (libwiredtiger.so.12.0.0+0x143678)    #8 main /home/ec2-user/work/git/wiredtiger-arm/src/utilities/util_main.c:334:16 (wt+0xf8b00)
        Thread T5 'eviction-ser 4' (tid=39834, running) created by main thread at:    #0 pthread_create /data/mci/0701f0b853b8865c4e2f06b43ba791fc/toolchain-builder/tmp/build-llvm-v5.sh-u2l/llvm-project-llvmorg/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:1023:3 (wt+0x6b594)    #1 __wt_thread_create /home/ec2-user/work/git/wiredtiger-arm/src/os_posix/os_thread.c:60:5 (libwiredtiger.so.12.0.0+0x27dffc)    #2 __thread_group_resize /home/ec2-user/work/git/wiredtiger-arm/src/support/thread_group.c:203:9 (libwiredtiger.so.12.0.0+0x34bf98)    #3 __wt_thread_group_create /home/ec2-user/work/git/wiredtiger-arm/src/support/thread_group.c:289:5 (libwiredtiger.so.12.0.0+0x34c4c4)    #4 __wt_evict_threads_create /home/ec2-user/work/git/wiredtiger-arm/src/evict/evict_lru.c:597:5 (libwiredtiger.so.12.0.0+0x20f488)    #5 __wt_txn_recover /home/ec2-user/work/git/wiredtiger-arm/src/txn/txn_recover.c:1139:5 (libwiredtiger.so.12.0.0+0x367444)    #6 __wti_connection_workers /home/ec2-user/work/git/wiredtiger-arm/src/conn/conn_open.c:260:5 (libwiredtiger.so.12.0.0+0x169fa8)    #7 wiredtiger_open /home/ec2-user/work/git/wiredtiger-arm/src/conn/conn_api.c:3324:5 (libwiredtiger.so.12.0.0+0x143678)    #8 main /home/ec2-user/work/git/wiredtiger-arm/src/utilities/util_main.c:334:16 (wt+0xf8b00)
      SUMMARY: ThreadSanitizer: data race /home/ec2-user/work/git/wiredtiger-arm/src/support/mtx_rw.c:168:71 in __read_blocked 

            Assignee:
            Ivan Kochin
            Reporter:
            Ivan Kochin
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              Created:
              Updated:
              Resolved: