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  1. MariaDB Server
  2. MDEV-3861

TC_LOG_MMAP::log_one_transaction(my_xid): Assertion `p->ptr<p->end' failed

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      I have a simple test case that replaces a row in innodb and tokudb and
      then commits. Eventually, mysqld hits this assert:

      mysqld: /home/prohaska/maria10-build/mariadb-10.0.0/sql/log.cc:7547:
      int TC_LOG_MMAP::log_one_transaction(my_xid): Assertion `p->ptr <
      p->end' failed.

      The test works great when the binlog is enabled. The test crashes
      when the binlog is OFF. So, maybe the problem is isolated to the
      TC_LOG_MMAP logic. I noticed that the TC_LOG_MMAP::unlog function is
      quite different than the mariadb-5.5 version.

      What is the best way to get this fixed? Would it help if i made the
      test case available?

      Thanks
      Rich Prohaska

      Here is the stack trace:

      Program received signal SIGABRT, Aborted.
      0x0000003006a32885 in raise () from /lib64/libc.so.6
      (gdb) bt
      #0 0x0000003006a32885 in raise () from /lib64/libc.so.6
      #1 0x0000003006a34065 in abort () from /lib64/libc.so.6
      #2 0x0000003006a2b9fe in __assert_fail_base () from /lib64/libc.so.6
      #3 0x0000003006a2bac0 in __assert_fail () from /lib64/libc.so.6
      #4 0x00000000008862bf in TC_LOG_MMAP::log_one_transaction
      (this=0x1541f00 <tc_log_mmap>, xid=142018) at
      /home/prohaska/maria10-build/mariadb-10.0.0/sql/log.cc:7547
      #5 0x0000000000885442 in TC_LOG_MMAP::log_and_order (this=0x1541f00
      <tc_log_mmap>, thd=0x27f0000, xid=142018, all=true,
      need_prepare_ordered=false, need_commit_ordered=true) at
      /home/prohaska/maria10-\
      build/mariadb-10.0.0/sql/log.cc:7180
      #6 0x00000000007b819f in ha_commit_trans (thd=0x27f0000, all=true) at
      /home/prohaska/maria10-build/mariadb-10.0.0/sql/handler.cc:1329
      #7 0x0000000000710307 in trans_commit (thd=0x27f0000) at
      /home/prohaska/maria10-build/mariadb-10.0.0/sql/transaction.cc:213
      #8 0x000000000060a2df in mysql_execute_command (thd=0x27f0000) at
      /home/prohaska/maria10-build/mariadb-10.0.0/sql/sql_parse.cc:4084
      #9 0x000000000060f1a7 in mysql_parse (thd=0x27f0000,
      rawbuf=0x7fff6c0050b8 "commit", length=6, parser_state=0x7fffe4112660)
      at /home/prohaska/maria10-build/mariadb-10.0.0/sql/sql_parse.cc:6056
      #10 0x00000000006029a3 in dispatch_command (command=COM_QUERY,
      thd=0x27f0000, packet=0x27fa341 "commit", packet_length=6) at
      /home/prohaska/maria10-build/mariadb-10.0.0/sql/sql_parse.cc:1216
      #11 0x0000000000601bdb in do_command (thd=0x27f0000) at
      /home/prohaska/maria10-build/mariadb-10.0.0/sql/sql_parse.cc:945
      #12 0x00000000006ff6d1 in do_handle_one_connection (thd_arg=0x27f0000)
      at /home/prohaska/maria10-build/mariadb-10.0.0/sql/sql_connect.cc:1254
      #13 0x00000000006ff179 in handle_one_connection (arg=0x27f0000) at
      /home/prohaska/maria10-build/mariadb-10.0.0/sql/sql_connect.cc:1168
      #14 0x0000003006e077f1 in start_thread () from /lib64/libpthread.so.0
      #15 0x0000003006ae592d in clone () from /lib64/libc.so.6

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              knielsen Kristian Nielsen
              knielsen Kristian Nielsen
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                Resolved:

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