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  1. MariaDB Server
  2. MDEV-9853

WSREP says it cannot get fake InnoDB transaction ID followed by segmentation fault

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    Description

      A user saw MariaDB crash with the following error message and stack trace:

      2016-03-31 21:59:16 140234293163776 [Warning] WSREP: cannot get fake InnoDB transaction ID
      160331 21:59:16 [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 http://kb.askmonty.org/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: 10.1.10-MariaDB-enterprise-log
      key_buffer_size=67108864
      read_buffer_size=131072
      max_used_connections=7
      max_threads=1002
      thread_count=9
      It is possible that mysqld could use up to 
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 2266338 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x0x7f8ae23f8008
      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 = 0x7f8ad73aad40 thread_stack 0x48000
      mysys/stacktrace.c:247(my_print_stacktrace)[0x7f8ba073e8db]
      sql/signal_handler.cc:160(handle_fatal_signal)[0x7f8ba029f935]
      /lib64/libpthread.so.0(+0x3a2580f7e0)[0x7f8b9f8a97e0]
      sql/wsrep_hton.cc:73(wsrep_register_hton(THD*, bool))[0x7f8ba023c7d4]
      sql/transaction.cc:292(trans_commit_implicit(THD*))[0x7f8ba02021cd]
      sql/sql_insert.cc:4337(select_create::send_eof())[0x7f8ba0119a57]
      sql/sql_select.cc:17982(do_select)[0x7f8ba017189e]
      sql/sql_select.cc:3228(JOIN::exec_inner())[0x7f8ba0182440]
      sql/sql_select.cc:2519(JOIN::exec())[0x7f8ba01843bd]
      sql/sql_select.cc:3453(mysql_select(THD*, Item***, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x7f8ba0180d7a]
      sql/sql_select.cc:384(handle_select(THD*, LEX*, select_result*, unsigned long))[0x7f8ba018469d]
      sql/sql_parse.cc:3421(mysql_execute_command(THD*))[0x7f8ba0135edf]
      sql/sql_parse.cc:7302(mysql_parse)[0x7f8ba0136bcd]
      sql/sql_parse.cc:7126(wsrep_mysql_parse)[0x7f8ba0136ccc]
      sql/sql_parse.cc:1485(dispatch_command(enum_server_command, THD*, char*, unsigned int))[0x7f8ba0139053]
      sql/sql_parse.cc:1111(do_command(THD*))[0x7f8ba0139c1b]
      sql/sql_connect.cc:1349(do_handle_one_connection(THD*))[0x7f8ba01f4f9f]
      sql/sql_connect.cc:1263(handle_one_connection)[0x7f8ba01f50f7]
      /lib64/libpthread.so.0(+0x3a25807aa1)[0x7f8b9f8a1aa1]
      /lib64/libc.so.6(clone+0x6d)[0x7f8b9dd8793d]
       
      Trying to get some variables.
      Some pointers may be invalid and cause the dump to abort.
      Query (0x7f8b8bc8e020): is an invalid pointer
      Connection ID (thread ID): 21
      Status: NOT_KILLED
       
      Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=on,mrr_cost_based=on,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on
      

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              nirbhay_c Nirbhay Choubey (Inactive)
              GeoffMontee Geoff Montee (Inactive)
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