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  1. MariaDB MaxScale
  2. MXS-269

Crash in MySQL backend protocol

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 1.2.1
    • Fix Version/s: 1.3.0
    • Component/s: mariadbbackend
    • Labels:
      None
    • Environment:
      CentOS 6.5

      Description

      During tests with mysqlslap running against the current develop branch, MaxScale crashed with a segment fault:
      Program received signal SIGSEGV, Segmentation fault.
      [Switching to Thread 0x7fffc8dfa700 (LWP 11944)]
      0x00007fffc81e25ae in gw_read_backend_event (dcb=0x7fffbc00c000) at /usr/local/skysql/maxscale/MaxScale/server/modules/protocol/mysql_backend.c:455
      455 CHK_SESSION(session);

      This suggests that the session pointed to by the DCB passed to gw_read_backend_event was freed during processing. Unfortunately, I was looking for other things and did not gather any additional diagnostic information. The problem does not readily repeat.

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            Assignee:
            martin brampton martin brampton (Inactive)
            Reporter:
            martin brampton martin brampton (Inactive)
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              Dates

              Created:
              Updated:
              Resolved: