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  1. MariaDB MaxScale
  2. MXS-268

Segmentation fault when using schemarouter through socket

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Cannot Reproduce
    • Affects Version/s: 1.2.0
    • Fix Version/s: 1.2.0
    • Component/s: mariadbclient, schemarouter
    • Labels:
      None
    • Environment:
      Debian 8.1
      MySQL 5.5.43-0+deb8u1

      Description

      Configured MaxScale as follows:
      --------------------------
      [MaxScale]
      threads=4
      log_trace=1
      log_debug=1

      [Shard service]
      type=service
      router=schemarouter
      servers=srv_localhost
      user=maxscale
      passwd=maxscalepwd

      [Shard listener]
      type=listener
      service=Shard service
      protocol=MySQLClient
      port=4000
      socket=/var/run/maxscale/shard.sock

      [srv_localhost]
      type=server
      address=localhost
      port=3306
      protocol=MySQLBackend
      ---------------------------------------

      When starting service, MaxScale logging error in /var/log/maxscale/error1.log:
      Error: Failed to set socket options. Error 95: Operation not supported

      When trying to connect using mysql console:

      1. mysql -u testuser -p -S /var/run/maxscale/shard.sock testdb

      MaxScale fails with SIGSEGV:

      ==> error1.log <==
      2015-07-14 12:42:18 Fatal: MaxScale received fatal signal 11. Attempting backtrace.
      2015-07-14 12:42:18 /usr/bin/maxscale() [0x51cd85]
      2015-07-14 12:42:18 /lib/x86_64-linux-gnu/libpthread.so.0(+0xf8d0) [0x7f66069af8d0]
      2015-07-14 12:42:18 /usr/bin/maxscale(_Z8MYSQLlexP7YYSTYPEP3THD+0x26) [0x70b226]
      2015-07-14 12:42:18 /usr/bin/maxscale(_Z10MYSQLparseP3THD+0x63c) [0x8c9e3c]
      2015-07-14 12:42:18 /usr/bin/maxscale(_Z9parse_sqlP3THDP12Parser_stateP19Object_creation_ctxb+0x7c) [0x70013c]
      2015-07-14 12:42:18 /usr/lib/x86_64-linux-gnu/maxscale/libquery_classifier.so(+0x33db) [0x7f65f01743db]
      2015-07-14 12:42:18 /usr/lib/x86_64-linux-gnu/maxscale/libquery_classifier.so(parse_query+0x185) [0x7f65f0173f8d]
      2015-07-14 12:42:18 /usr/lib/x86_64-linux-gnu/maxscale/libquery_classifier.so(query_classifier_get_type+0x46) [0x7f65f0173db6]
      2015-07-14 12:42:18 /usr/lib/maxscale/libschemarouter.so(+0x82b0) [0x7f65f03812b0]
      2015-07-14 12:42:18 /usr/lib/maxscale/libschemarouter.so(internalRoute+0x83) [0x7f65f037e590]
      2015-07-14 12:42:18 /usr/bin/maxscale() [0x53245f]
      2015-07-14 12:42:18 /usr/bin/maxscale(poll_waitevents+0x629) [0x531d26]
      2015-07-14 12:42:18 /usr/bin/maxscale(main+0x1c0a) [0x51f74e]
      2015-07-14 12:42:18 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f660519db45]
      2015-07-14 12:42:18 /usr/bin/maxscale() [0x51baa9]

      (gdb) bt
      #0 0x000000000070b226 in MYSQLlex(YYSTYPE*, THD*) ()
      #1 0x00000000008c9e3c in MYSQLparse(THD*) ()
      #2 0x000000000070013c in parse_sql(THD*, Parser_state*, Object_creation_ctx*, bool) ()
      #3 0x00007f42e02583db in ?? () from /usr/lib/x86_64-linux-gnu/maxscale/libquery_classifier.so
      #4 0x00007f42e0257f8d in parse_query () from /usr/lib/x86_64-linux-gnu/maxscale/libquery_classifier.so
      #5 0x00007f42e0257db6 in query_classifier_get_type () from /usr/lib/x86_64-linux-gnu/maxscale/libquery_classifier.so
      #6 0x00007f42e04652b0 in ?? () from /usr/lib/maxscale/libschemarouter.so
      #7 0x00007f42e0462590 in internalRoute () from /usr/lib/maxscale/libschemarouter.so
      #8 0x000000000053245f in ?? ()
      #9 0x0000000000531d26 in poll_waitevents ()
      #10 0x00007f42f6a8c0a4 in start_thread (arg=0x7f42d9ffb700) at pthread_create.c:309
      #11 0x00007f42f534604d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

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            Assignee:
            markus makela markus makela
            Reporter:
            Asgard Alex V. Yeskin
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              Dates

              Created:
              Updated:
              Resolved:

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