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  1. WiredTiger
  2. WT-6539

Fix backup and rename memory leak

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: WT3.2.2, 4.5.1
    • Component/s: None
    • Labels:
      None
    • Backport Requested:
      v4.4, v4.2

      Description

      The merge of WT-6215 revealed a memory leak in the new schema rename code adding in the backup block mods.
      https://evergreen.mongodb.com/task/wiredtiger_rhel80_make_check_asan_test_7365ea188aaf1aa094824def8822d816752dcab2_20_07_22_13_46_40/0

      [2020/07/22 14:40:30.061] ==8550==ERROR: LeakSanitizer: detected memory leaks
      [2020/07/22 14:40:30.061] Direct leak of 19639 byte(s) in 16 object(s) allocated from:
      [2020/07/22 14:40:30.061]     #0 0x4c56f3 in malloc /data/mci/a4affc48e8e26b0b96dee0d807896f39/toolchain-builder/tmp/build-llvm.sh-I7H/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:146:3
      [2020/07/22 14:40:30.061]     #1 0x7f95d2c0a08e in __wt_malloc /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/os_common/os_alloc.c:81:14
      [2020/07/22 14:40:30.061]     #2 0x7f95d2c0ba9f in __wt_strndup /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/os_common/os_alloc.c:262:5
      [2020/07/22 14:40:30.061]     #3 0x7f95d2be270a in __wt_meta_block_metadata /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/meta/meta_ckpt.c:365:5
      [2020/07/22 14:40:30.061]     #4 0x7f95d2be2ea5 in __wt_meta_blk_mods_load /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/meta/meta_ckpt.c:472:5
      [2020/07/22 14:40:30.061]     #5 0x7f95d2d2f84a in __rename_blkmod /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/schema/schema_rename.c:26:5
      [2020/07/22 14:40:30.061]     #6 0x7f95d2d2e309 in __rename_file /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/schema/schema_rename.c:89:9
      [2020/07/22 14:40:30.061]     #7 0x7f95d2d2d30e in __schema_rename /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/schema/schema_rename.c:300:15
      [2020/07/22 14:40:30.061]     #8 0x7f95d2d2cebc in __wt_schema_rename /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/schema/schema_rename.c:329:11
      [2020/07/22 14:40:30.061]     #9 0x7f95d2d313d6 in __rename_tree /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/schema/schema_rename.c:185:5
      [2020/07/22 14:40:30.061]     #10 0x7f95d2d2ec50 in __rename_table /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/schema/schema_rename.c:251:9
      [2020/07/22 14:40:30.061]     #11 0x7f95d2d2d456 in __schema_rename /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/schema/schema_rename.c:304:15
      [2020/07/22 14:40:30.061]     #12 0x7f95d2d2cebc in __wt_schema_rename /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/schema/schema_rename.c:329:11
      [2020/07/22 14:40:30.061]     #13 0x7f95d2d608c2 in __session_rename /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/../src/session/session_api.c:917:5
      [2020/07/22 14:40:30.061]     #14 0x4f6f30 in rename_table /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/test/csuite/../../../test/csuite/incr_backup/main.c:432:5
      [2020/07/22 14:40:30.061]     #15 0x4f5bd7 in main /data/mci/c5f18007c218fb4414b18121188ca672/wiredtiger/build_posix/test/csuite/../../../test/csuite/incr_backup/main.c:861:21
      [2020/07/22 14:40:30.061]     #16 0x7f95d1606812 in __libc_start_main (/lib64/libc.so.6+0x23812)
      

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              Assignee:
              sue.loverso Susan LoVerso
              Reporter:
              sue.loverso Susan LoVerso
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                Updated:
                Resolved: