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  1. MariaDB Server
  2. MDEV-22258

Limit innodb_encryption_threads to 255

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      Description

      SET @@GLOBAL.innodb_encryption_threads=10000;  # Will make server + CLI hang AND stop any new clients from connecting
      

      Leads to:

      10.5.3 364e7a9ae6b5fbf69494cec30733b5ad28738cbb

      Core was generated by `/test/MD110420-mariadb-10.5.3-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.
      Program terminated with signal SIGABRT, Aborted.
      #0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6)
          at ../sysdeps/unix/sysv/linux/pthread_kill.c:57
      [Current thread is 1 (Thread 0x7f507c15f700 (LWP 30081))]
      (gdb) bt
      #0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ../sysdeps/unix/sysv/linux/pthread_kill.c:57
      #1  0x0000562a6133b21e in my_write_core (sig=sig@entry=6) at /test/10.5_dbg/mysys/stacktrace.c:518
      #2  0x0000562a60ae108f in handle_fatal_signal (sig=6) at /test/10.5_dbg/sql/signal_handler.cc:329
      #3  <signal handler called>
      #4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
      #5  0x00007f507a8a3801 in __GI_abort () at abort.c:79
      #6  0x0000562a610f73e8 in ut_dbg_assertion_failed (expr=expr@entry=0x562a6174c238 "os_thread_count <= srv_max_n_threads", file=file@entry=0x562a6174c208 "/test/10.5_dbg/storage/innobase/os/os0thread.cc", line=line@entry=146) at /test/10.5_dbg/storage/innobase/ut/ut0dbg.cc:60
      #7  0x0000562a60f79921 in os_thread_create_func (func=func@entry=0x562a61223333 <fil_crypt_thread(void*)>, arg=arg@entry=0x0, thread_id=thread_id@entry=0x7f507c15d8d8) at /test/10.5_dbg/storage/innobase/os/os0thread.cc:146
      #8  0x0000562a612221c8 in fil_crypt_set_thread_cnt (new_cnt=10000) at /test/10.5_dbg/storage/innobase/fil/fil0crypt.cc:2133
      #9  0x0000562a60e94a01 in innodb_encryption_threads_update (save=0x7f504e8743b0) at /test/10.5_dbg/storage/innobase/handler/ha_innodb.cc:18812
      #10 0x0000562a60851585 in sys_var_pluginvar::global_update (this=0x7f5079f785f0, thd=0x7f504e815088, var=0x7f504e874390) at /test/10.5_dbg/sql/sql_plugin.cc:3584
      #11 0x0000562a6074f9e2 in sys_var::update (this=0x7f5079f785f0, thd=0x7f504e815088, var=0x7f504e874390) at /test/10.5_dbg/sql/set_var.cc:207
      #12 0x0000562a6074ff0b in set_var::update (this=<optimized out>, thd=<optimized out>) at /test/10.5_dbg/sql/set_var.cc:859
      #13 0x0000562a607512c8 in sql_set_variables (thd=thd@entry=0x7f504e815088, var_list=var_list@entry=0x7f504e819fa0, free=free@entry=true) at /test/10.5_dbg/sql/set_var.cc:746
      #14 0x0000562a6083a50c in mysql_execute_command (thd=thd@entry=0x7f504e815088) at /test/10.5_dbg/sql/sql_parse.cc:4976
      #15 0x0000562a608449d1 in mysql_parse (thd=thd@entry=0x7f504e815088, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x7f507c15e450, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.5_dbg/sql/sql_parse.cc:7953
      #16 0x0000562a60830719 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x7f504e815088, packet=packet@entry=0x7f504e867089 "SET @@GLOBAL.innodb_encryption_threads=10000", packet_length=packet_length@entry=44, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.5_dbg/sql/sql_parse.cc:1839
      #17 0x0000562a6082ef6f in do_command (thd=0x7f504e815088) at /test/10.5_dbg/sql/sql_parse.cc:1358
      #18 0x0000562a60989a53 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x7f5052c433a8, put_in_cache=put_in_cache@entry=true) at /test/10.5_dbg/sql/sql_connect.cc:1422
      #19 0x0000562a60989d82 in handle_one_connection (arg=arg@entry=0x7f5052c433a8) at /test/10.5_dbg/sql/sql_connect.cc:1319
      #20 0x0000562a60dea080 in pfs_spawn_thread (arg=0x7f5079c45888) at /test/10.5_dbg/storage/perfschema/pfs.cc:2201
      #21 0x00007f507b5866db in start_thread (arg=0x7f507c15f700) at pthread_create.c:463
      #22 0x00007f507a98488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
      

      Bug confirmed present in:
      MariaDB: 10.1.45 (dbg), 10.1.45 (opt), 10.2.32 (dbg), 10.2.32 (opt), 10.3.23 (dbg), 10.3.23 (opt), 10.4.13 (dbg), 10.4.13 (opt), 10.5.2 (dbg), 10.5.2 (opt), 10.5.3 (dbg), 10.5.3 (opt)

      Bug confirmed not present in:
      MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.47 (dbg), 5.6.47 (opt), 5.7.29 (dbg), 5.7.29 (opt), 8.0.19 (dbg), 8.0.19 (opt)

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              Assignee:
              marko Marko Mäkelä
              Reporter:
              Roel Roel Van de Paar
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                Created:
                Updated:
                Resolved: