Uploaded image for project: 'WiredTiger'
  1. WiredTiger
  2. WT-2796

Memory leak in reconciliation uncovered by stress testing

    Details

      Description

      The Jenkins stress tests detected memory leaks. For example:

       
      Direct leak of 1060 byte(s) in 53 object(s) allocated from:
          #0 0x4a5ce0 in calloc (/mnt/fast/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/t+0x4a5ce0)
          #1 0x746fff in __wt_calloc /mnt/fast/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/os_common/os_alloc.c:51:11
          #2 0xcb25eb in __wt_update_alloc /mnt/fast/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/row_modify.c:277:2
          #3 0xc716c6 in __wt_col_modify /mnt/fast/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/col_modify.c:151:4
          #4 0xff5265 in __cursor_col_modify /mnt/fast/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_cursor.c:266:10
          #5 0xff9997 in __wt_btcur_remove /mnt/fast/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_cursor.c:707:10
          #6 0xd85a7b in __curfile_remove /mnt/fast/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/cursor/cur_file.c:331:2
          #7 0x4e5620 in col_remove /mnt/fast/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/ops.c:1392:9
          #8 0x4ddf28 in ops /mnt/fast/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/ops.c:611:11
          #9 0x7f049753adf2 in start_thread (/lib64/libpthread.so.0+0x7df2)
      

      The failure can be seen here http://build.wiredtiger.com:8080/job/wiredtiger-test-format-stress-sanitizer/10560/console

      It is likely that this leak was introduced by the recent changes to scrub dirty pages. Doesn't reproduce quickly.

        Attachments

          Activity

            People

            • Assignee:
              sue.loverso Sue LoVerso
              Reporter:
              alexander.gorrod Alexander Gorrod
            • Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: