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  1. MariaDB Server
  2. MDEV-19838

mariadb odbc driver 3.1.1-ga sometimes crashes mariadb-server 10.3.16

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      Description

      The attached test-case for mariadb odbc driver 3.1.1 causes mariadb 10.3.16 server to crash with different stack-traces, this is indeed a problem of the odbc driver however the server shouldn't crash. I consider this bug critical because it is too easy to bring the server down and mdb 10.3 is about to become the new stable version of debian.

      Edit: I have attached a better test segv_mdb_10_3_16_rel.test.patch, the first one didn't crash the release build of mdb server.

      Stack-Trace One:

      190623 13:03:51 [ERROR] mysqld got signal 11 ;
      This could be because you hit a bug. It is also possible that this binary
      or one of the libraries it was linked against is corrupt, improperly built,
      or misconfigured. This error can also be caused by malfunctioning hardware.
       
      To report this bug, see https://mariadb.com/kb/en/reporting-bugs
       
      We will try our best to scrape up some info that will hopefully help
      diagnose the problem, but since we have already crashed,
      something is definitely wrong and this may fail.
       
      Server version: 10.3.16-MariaDB-debug-log
      key_buffer_size=134217728
      read_buffer_size=131072
      max_used_connections=2
      max_threads=2050
      thread_count=8
      It is possible that mysqld could use up to
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 4639127 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x7f9648000b00
      Attempting backtrace. You can use the following information to find out
      where mysqld died. If you see no messages after this, something went
      terribly wrong...
      stack_bottom = 0x7f99688d7d40 thread_stack 0x49000
      mysys/stacktrace.c:269(my_print_stacktrace)[0x55b3976e6256]
      sql/signal_handler.cc:209(handle_fatal_signal)[0x55b396f3af55]
      /lib/x86_64-linux-gnu/libpthread.so.0(+0x110e0)[0x7f99818730e0]
      sql/log_event.cc:1148(append_query_string(charset_info_st const*, String*, char const*, unsigned long, bool))[0x55b397068864]
      sql/item.cc:4764(Item_param::value_query_val_str(THD*, String*) const)[0x55b396f62735]
      sql/item.cc:4780(Item_param::query_val_str(THD*, String*) const)[0x55b396f627cb]
      sql/item.cc:5125(Item_param::append_for_log(THD*, String*))[0x55b396f6366d]
      sql/item.h:564(Copy_query_with_rewrite::append(Rewritable_query_parameter*))[0x55b396b733da]
      sql/sql_prepare.cc:847(insert_params_with_log(Prepared_statement*, unsigned char*, unsigned char*, unsigned char*, String*))[0x55b396c623a8]
      sql/sql_prepare.cc:4135(Prepared_statement::set_parameters(String*, unsigned char*, unsigned char*))[0x55b396c69ba8]
      sql/sql_prepare.cc:4205(Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*))[0x55b396c69cde]
      sql/sql_prepare.cc:3235(mysql_stmt_execute_common(THD*, unsigned long, unsigned char*, unsigned char*, unsigned long, bool, bool))[0x55b396c67694]
      sql/sql_prepare.cc:3133(mysqld_stmt_execute(THD*, char*, unsigned int))[0x55b396c6722f]
      sql/sql_parse.cc:1801(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x55b396c3ba38]
      sql/sql_parse.cc:1403(do_command(THD*))[0x55b396c3a809]
      sql/sql_connect.cc:1402(do_handle_one_connection(CONNECT*))[0x55b396da3ca1]
      sql/sql_connect.cc:1309(handle_one_connection)[0x55b396da3a18]
      nptl/pthread_create.c:456(start_thread)[0x7f99818694a4]
      x86_64/clone.S:99(clone)[0x7f997f99ed0f]
      

      Stack-Trace Two:

      Version: '10.3.16-MariaDB-debug-log'  socket: '/tmp/mysql.sock'  port: 3306  Source distribution
      mysqld: /usr/local/src/mariadb/sql/sql_type.cc:999: static const Type_handler* Type_handler::get_handler_by_field_type(enum_field_types): Assertion `0' failed.
      190623 13:06:30 [ERROR] mysqld got signal 6 ;
      This could be because you hit a bug. It is also possible that this binary
      or one of the libraries it was linked against is corrupt, improperly built,
      or misconfigured. This error can also be caused by malfunctioning hardware.
       
      To report this bug, see https://mariadb.com/kb/en/reporting-bugs
       
      We will try our best to scrape up some info that will hopefully help
      diagnose the problem, but since we have already crashed,
      something is definitely wrong and this may fail.
       
      Server version: 10.3.16-MariaDB-debug-log
      key_buffer_size=134217728
      read_buffer_size=131072
      max_used_connections=1
      max_threads=2050
      thread_count=7
      It is possible that mysqld could use up to
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 4639127 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x7f765c000b00
      Attempting backtrace. You can use the following information to find out
      where mysqld died. If you see no messages after this, something went
      terribly wrong...
      stack_bottom = 0x7f796d0f6d40 thread_stack 0x49000
      mysys/stacktrace.c:269(my_print_stacktrace)[0x55833b0b2256]
      sql/signal_handler.cc:209(handle_fatal_signal)[0x55833a906f55]
      /lib/x86_64-linux-gnu/libpthread.so.0(+0x110e0)[0x7f79888d50e0]
      linux/raise.c:51(__GI_raise)[0x7f798694afff]
      stdlib/abort.c:91(__GI_abort)[0x7f798694c42a]
      assert/assert.c:92(__assert_fail_base)[0x7f7986943e67]
      /lib/x86_64-linux-gnu/libc.so.6(+0x2bf12)[0x7f7986943f12]
      sql/sql_type.cc:1001(Type_handler::get_handler_by_field_type(enum_field_types))[0x55833a7f2a05]
      sql/sql_prepare.cc:733(Item_param::setup_conversion(THD*, unsigned char))[0x55833a62df9e]
      sql/sql_prepare.cc:974(set_conversion_functions(Prepared_statement*, unsigned char**, unsigned char*))[0x55833a62e97d]
      sql/sql_prepare.cc:995(setup_conversion_functions(Prepared_statement*, unsigned char**, unsigned char*, bool))[0x55833a62ea7a]
      sql/sql_prepare.cc:4135(Prepared_statement::set_parameters(String*, unsigned char*, unsigned char*))[0x55833a635b83]
      sql/sql_prepare.cc:4205(Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*))[0x55833a635cde]
      sql/sql_prepare.cc:3235(mysql_stmt_execute_common(THD*, unsigned long, unsigned char*, unsigned char*, unsigned long, bool, bool))[0x55833a633694]
      sql/sql_prepare.cc:3133(mysqld_stmt_execute(THD*, char*, unsigned int))[0x55833a63322f]
      sql/sql_parse.cc:1801(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x55833a607a38]
      sql/sql_parse.cc:1403(do_command(THD*))[0x55833a606809]
      sql/sql_connect.cc:1402(do_handle_one_connection(CONNECT*))[0x55833a76fca1]
      sql/sql_connect.cc:1309(handle_one_connection)[0x55833a76fa18]
      nptl/pthread_create.c:456(start_thread)[0x7f79888cb4a4]
      x86_64/clone.S:99(clone)[0x7f7986a00d0f]
      

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              Assignee:
              sanja Oleksandr Byelkin
              Reporter:
              matzehh Matthias Schröder
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                Updated:
                Resolved: