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  1. MariaDB Server
  2. MDEV-23371

main.range_innodb failed in buildbot, server crashed in _db_doprnt_

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      http://buildbot.askmonty.org/buildbot/builders/kvm-fulltest2/builds/23468/steps/mtr_nm/logs/stdio

      10.2 fbfb5b5f68a4

      main.range_innodb 'innodb'               w1 [ fail ]
              Test ended at 2020-07-01 04:57:16
       
      CURRENT_TEST: main.range_innodb
      mysqltest: At line 115: query 'SET @@GLOBAL.debug_dbug = @saved_dbug' failed: 2013: Lost connection to MySQL server during query
      

      2020-07-01  4:57:14 2953296704 [ERROR] Got error 128 when reading table './test/t1'
      200701  4:57:14 [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: 10.2.33-MariaDB-debug-log
      key_buffer_size=1048576
      read_buffer_size=131072
      max_used_connections=3
      max_threads=153
      thread_count=11
      It is possible that mysqld could use up to 
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 61891 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x82bbf820
      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 = 0xa80f223c thread_stack 0x49000
      /mnt/buildbot/build/mariadb-10.2.33/sql/mysqld(my_print_stacktrace+0x33)[0x80daf6b1]
      mysys/stacktrace.c:267(my_print_stacktrace)[0x806a5070]
      addr2line: '': No such file
      [0xb76fac14]
      dbug/dbug.c:1310(_db_doprnt_)[0x80dcf4d6]
      que/que0que.cc:982(que_thr_step(que_thr_t*))[0x80a80e6c]
      que/que0que.cc:1104(que_run_threads_low(que_thr_t*))[0x80a812ea]
      que/que0que.cc:1144(que_run_threads(que_thr_t*))[0x80a814a7]
      srv/srv0srv.cc:2571(srv_task_execute(srv_slot_t*))[0x80b32df1]
      srv/srv0srv.cc:2618(srv_worker_thread)[0x80b32f57]
      /lib/i386-linux-gnu/libpthread.so.0(+0x62b5)[0xb73532b5]
      /lib/i386-linux-gnu/libc.so.6(clone+0x6e)[0xb709416e]
       
      Trying to get some variables.
      Some pointers may be invalid and cause the dump to abort.
      Query (0x0): 
      Connection ID (thread ID): 2
      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=off,mrr_cost_based=off,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=off,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on
       
      The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
      information that should help you find out what is causing the crash.
      Writing a core file...
      Working directory at /dev/shm/var_auto_x3RJ/1/mysqld.1/data
      Resource Limits:
      Limit                     Soft Limit           Hard Limit           Units     
      Max cpu time              unlimited            unlimited            seconds   
      Max file size             unlimited            unlimited            bytes     
      Max data size             unlimited            unlimited            bytes     
      Max stack size            8388608              unlimited            bytes     
      Max core file size        unlimited            unlimited            bytes     
      Max resident set          unlimited            unlimited            bytes     
      Max processes             48287                48287                processes 
      Max open files            1024                 1024                 files     
      Max locked memory         65536                65536                bytes     
      Max address space         unlimited            unlimited            bytes     
      Max file locks            unlimited            unlimited            locks     
      Max pending signals       48287                48287                signals   
      Max msgqueue size         819200               819200               bytes     
      Max nice priority         0                    0                    
      Max realtime priority     0                    0                    
      Max realtime timeout      unlimited            unlimited            us        
      Core pattern: |/usr/share/apport/apport %p %s %c %P
      

      #4  <signal handler called>
      #5  0x80dcf4d6 in _db_doprnt_ (format=0x8102238a "Execute %u (%s) at %p") at /home/buildbot/buildbot/build/mariadb-10.2.33/dbug/dbug.c:1310
      #6  0x80a80e6c in que_thr_step (thr=0x82bae120) at /home/buildbot/buildbot/build/mariadb-10.2.33/storage/innobase/que/que0que.cc:982
      #7  0x80a812ea in que_run_threads_low (thr=0x82bae120) at /home/buildbot/buildbot/build/mariadb-10.2.33/storage/innobase/que/que0que.cc:1104
      #8  0x80a814a7 in que_run_threads (thr=0x82bae120) at /home/buildbot/buildbot/build/mariadb-10.2.33/storage/innobase/que/que0que.cc:1144
      #9  0x80b32df1 in srv_task_execute (slot=0x81551434 <srv_sys+244>) at /home/buildbot/buildbot/build/mariadb-10.2.33/storage/innobase/srv/srv0srv.cc:2571
      #10 0x80b32f57 in srv_worker_thread (arg=0x0) at /home/buildbot/buildbot/build/mariadb-10.2.33/storage/innobase/srv/srv0srv.cc:2618
      #11 0xb73532b5 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
      #12 0xb709416e in clone () from /lib/i386-linux-gnu/libc.so.6
      

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              marko Marko Mäkelä
              elenst Elena Stepanova
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