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  1. MariaDB Server
  2. MDEV-10013

Handlersocket: Segfault with binary logging enabled

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    Description

      How to repeat:

      1. Enable binary logging & Handlersocket plugin.

        [mysqld]
        log-bin
        plugin_load=handlersocket
        handlersocket_address = 127.0.0.1
        handlersocket_port = 9998
        handlersocket_port_wr = 9999
        

      2. Create a table.

        +-------+--------------------------------------------------------------------------------------------------------+
        | Table | Create Table                                                                                           |
        +-------+--------------------------------------------------------------------------------------------------------+
        | t1    | CREATE TABLE `t1` (
          `i` int(11) NOT NULL,
          PRIMARY KEY (`i`)
        ) ENGINE=InnoDB DEFAULT CHARSET=latin1 |
        +-------+--------------------------------------------------------------------------------------------------------+
        

      3. Execute the attached program.

      Stack:

      Program received signal SIGSEGV, Segmentation fault.
      [Switching to Thread 0x7fffe37fb700 (LWP 19319)]
      0x000055555629f84d in bitmap_bits_set (map=0x0) at /home/nirbhay/project/git-repo/maria/10.1/mysys/my_bitmap.c:600
      600	  my_bitmap_map *data_ptr= map->bitmap;
      (gdb) bt
      #0  0x000055555629f84d in bitmap_bits_set (map=0x0) at /home/nirbhay/project/git-repo/maria/10.1/mysys/my_bitmap.c:600
      #1  0x0000555555d6a20c in pack_row (table=0x7fffc97ce470, cols=0x0, 
          row_data=0x7fffc9275958 '\245' <repeats 200 times>..., record=0x7fffc9275788 "")
          at /home/nirbhay/project/git-repo/maria/10.1/sql/rpl_record.cc:65
      #2  0x00005555559ea6c9 in THD::binlog_write_row (this=0x7fffe5a06070, table=0x7fffc97ce470, is_trans=true, 
          record=0x7fffc9275788 "") at /home/nirbhay/project/git-repo/maria/10.1/sql/sql_class.cc:6300
      #3  0x0000555555c6d017 in Write_rows_log_event::binlog_row_logging_function (thd=0x7fffe5a06070, 
          table=0x7fffc97ce470, is_transactional=true, before_record=0x0, after_record=0x7fffc9275788 "")
          at /home/nirbhay/project/git-repo/maria/10.1/sql/log_event.h:4566
      #4  0x0000555555c6a8c7 in binlog_log_row (table=0x7fffc97ce470, before_record=0x0, after_record=0x7fffc9275788 "", 
          log_func=0x555555c6cfe2 <Write_rows_log_event::binlog_row_logging_function(THD*, TABLE*, bool, unsigned char const*, unsigned char const*)>) at /home/nirbhay/project/git-repo/maria/10.1/sql/handler.cc:5756
      #5  0x0000555555c6afd5 in handler::ha_write_row (this=0x7fffc97a8088, buf=0x7fffc9275788 "")
          at /home/nirbhay/project/git-repo/maria/10.1/sql/handler.cc:5887
      #6  0x00007ffff5cde240 in dena::dbcontext::cmd_insert_internal (this=0x7ffff545f240, cb=..., pst=..., 
          fvals=0x7fffe37faa50, fvalslen=1)
          at /home/nirbhay/project/git-repo/maria/10.1/plugin/handler_socket/handlersocket/database.cpp:676
      #7  0x00007ffff5ce0030 in dena::dbcontext::cmd_exec (this=0x7ffff545f240, cb=..., args=...)
          at /home/nirbhay/project/git-repo/maria/10.1/plugin/handler_socket/handlersocket/database.cpp:1165
      #8  0x00007ffff5cec83c in dena::hstcpsvr_worker::do_exec_on_index (this=0x7ffff5461500, 
          cmd_begin=0x7fffc9b21001 "\t+\t1\t3\n", cmd_end=0x7fffc9b21001 "\t+\t1\t3\n", start=0x7fffc9b21007 "\n", 
          finish=0x7fffc9b21007 "\n", conn=...)
          at /home/nirbhay/project/git-repo/maria/10.1/plugin/handler_socket/handlersocket/hstcpsvr_worker.cpp:801
      #9  0x00007ffff5cec1cb in dena::hstcpsvr_worker::execute_line (this=0x7ffff5461500, start=0x7fffc9b21002 "+\t1\t3\n", 
          finish=0x7fffc9b21007 "\n", conn=...)
          at /home/nirbhay/project/git-repo/maria/10.1/plugin/handler_socket/handlersocket/hstcpsvr_worker.cpp:711
      #10 0x00007ffff5cebfc0 in dena::hstcpsvr_worker::execute_lines (this=0x7ffff5461500, conn=...)
          at /home/nirbhay/project/git-repo/maria/10.1/plugin/handler_socket/handlersocket/hstcpsvr_worker.cpp:677
      #11 0x00007ffff5ceb824 in dena::hstcpsvr_worker::run_one_ep (this=0x7ffff5461500)
          at /home/nirbhay/project/git-repo/maria/10.1/plugin/handler_socket/handlersocket/hstcpsvr_worker.cpp:561
      #12 0x00007ffff5cea686 in dena::hstcpsvr_worker::run (this=0x7ffff5461500)
          at /home/nirbhay/project/git-repo/maria/10.1/plugin/handler_socket/handlersocket/hstcpsvr_worker.cpp:337
      #13 0x00007ffff5cf4615 in dena::worker_throbj::operator() (this=0x7ffff54a8540)
          at /home/nirbhay/project/git-repo/maria/10.1/plugin/handler_socket/handlersocket/hstcpsvr.cpp:34
      #14 0x00007ffff5cf5b0e in dena::thread<dena::worker_throbj>::thread_main (arg=0x7ffff54a8540)
          at /home/nirbhay/project/git-repo/maria/10.1/plugin/handler_socket/libhsclient/thread.hpp:71
      #15 0x00007ffff6afa182 in start_thread (arg=0x7fffe37fb700) at pthread_create.c:312
      #16 0x00007ffff621d47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
      (gdb) 
      

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              Unassigned Unassigned
              nirbhay_c Nirbhay Choubey (Inactive)
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                Resolved:

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