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  1. MariaDB MaxScale
  2. MXS-3332

MaxScale 2.5.5. Signal 11 on database select

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.5.5
    • Fix Version/s: 2.5.9
    • Component/s: Core
    • Labels:
      None
    • Environment:
      Ubuntu 18.04.4 LTS connecting to single SkySQL Server.
    • Sprint:
      MXS-SPRINT-122, MXS-SPRINT-123, MXS-SPRINT-124, MXS-SPRINT-125, MXS-SPRINT-126

      Description

      When selecting a database MaxScale is crashing with a signal 11.

      $ mysql -h127.0.0.1 -uXUSERX -p --port=3306
      Enter password:
      Welcome to the MariaDB monitor. Commands end with ; or \g.
      Your MariaDB connection id is 1
      Server version: 10.5.4-2-MariaDB-enterprise-log MariaDB Enterprise Server

      Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

      Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

      MariaDB [(none)]> \u XDATABASEX
      ERROR 2013 (HY000): Lost connection to MySQL server during query

      Specifying a database on initial connect works fine

      mysql -h127.0.0.1 -uXUSERX -p --port=3306 XDATABASEX

      Stacktrace:

      2020-12-09 13:18:35   alert  : (1) MaxScale 2.5.5 received fatal signal 11. Commit ID: 91c3b76195d0057ddbe572bbb8d17f6ac6b09d5e System name: Linux Release string: Ubuntu 18.04.4 LTS
      2020-12-09 13:18:35   alert  : (1) Statement currently being classified: none/unknown
      nm: /lib/x86_64-linux-gnu/libc.so.6: no symbols
      2020-12-09 13:18:35   alert  : (1) 
        /usr/lib/x86_64-linux-gnu/maxscale/libmariadbclient.so(+0x26dba): server/modules/protocol/MariaDB/mariadb_backend.cc:71
        /usr/lib/x86_64-linux-gnu/maxscale/libmariadbclient.so(_ZN24MariaDBBackendConnection17process_ok_packetEN8maxscale6Buffer8iteratorES2_+0x139): server/modules/protocol/MariaDB/mariadb_backend.cc:114
        /usr/lib/x86_64-linux-gnu/maxscale/libmariadbclient.so(_ZN24MariaDBBackendConnection20process_result_startEN8maxscale6Buffer8iteratorES2_+0xd2): server/modules/protocol/MariaDB/mariadb_backend.cc:2076
        /usr/lib/x86_64-linux-gnu/maxscale/libmariadbclient.so(_ZN24MariaDBBackendConnection15process_packetsEPP5GWBUF+0x152): server/modules/protocol/MariaDB/mariadb_backend.cc:1811
        /usr/lib/x86_64-linux-gnu/maxscale/libmariadbclient.so(_ZN24MariaDBBackendConnection14track_responseEPP5GWBUF+0xf): server/modules/protocol/MariaDB/mariadb_backend.cc:1450
        /usr/lib/x86_64-linux-gnu/maxscale/libmariadbclient.so(_ZN24MariaDBBackendConnection11normal_readEv+0x628): server/modules/protocol/MariaDB/mariadb_backend.cc:574
        /usr/lib/x86_64-linux-gnu/maxscale/libmaxscale-common.so.1.0.0(_ZN3DCB14process_eventsEj+0x6c): server/core/dcb.cc:1291
        /usr/lib/x86_64-linux-gnu/maxscale/libmaxscale-common.so.1.0.0(_ZN3DCB13event_handlerEPS_j+0x21): server/core/dcb.cc:1350
        /usr/lib/x86_64-linux-gnu/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker15poll_waiteventsEv+0x1ce): maxutils/maxbase/src/worker.cc:879
        /usr/lib/x86_64-linux-gnu/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker3runEPNS_9SemaphoreE+0x53): maxutils/maxbase/src/worker.cc:574
        /usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0xbd6df): ??:?
        /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db): /build/glibc-S7xCS9/glibc-2.27/nptl/pthread_create.c:463
        /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f): ??:0
      

        Attachments

        1. global.txt
          20 kB
        2. maxscale.cnf
          0.5 kB
        3. maxscale.log
          14 kB

          Activity

            People

            Assignee:
            markus makela markus makela
            Reporter:
            bryan Bryan Alsdorf
            Votes:
            1 Vote for this issue
            Watchers:
            3 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:

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