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  1. MariaDB Server
  2. MDEV-23832

Crash at startup in Log_event::read_log_event()

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      Description

      Server crashes with the following backtrace at startuip:

      ...
      2020-09-28 18:37:47 0 [Note] Starting ack receiver thread
      200928 18:37:48 [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: 10.3.18-MariaDB-log
      key_buffer_size=67108864
      read_buffer_size=131072
      max_used_connections=0
      max_threads=1002
      thread_count=6
      It is possible that mysqld could use up to
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 2268426 K bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x0
      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 = 0x0 thread_stack 0x40000
      /usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x55d2563f106e]
      /usr/sbin/mysqld(handle_fatal_signal+0x30f)[0x55d255e8e11f]
      /lib64/libpthread.so.0(+0xf680)[0x7f6522495680]
      /usr/sbin/mysqld(_ZN9Log_event14read_log_eventEPKcjPS1_PK28Format_description_log_eventc+0xfc)[0x55d255f9381c]
      /usr/sbin/mysqld(_ZN9Log_event14read_log_eventEP11st_io_cachePK28Format_description_log_eventc+0xcf)[0x55d255f9433f]
      /usr/sbin/mysqld(_ZN13MYSQL_BIN_LOG7recoverEP11st_log_infoPKcP11st_io_cacheP28Format_description_log_eventb+0x17a)[0x55d255f7693a]
      /usr/sbin/mysqld(_ZN13MYSQL_BIN_LOG18do_binlog_recoveryEPKcb+0x2ea)[0x55d255f771ba]
      /usr/sbin/mysqld(_ZN13MYSQL_BIN_LOG4openEPKc+0x3a)[0x55d255f7acda]
      /usr/sbin/mysqld(+0x4f93ae)[0x55d255bf83ae]
      /usr/sbin/mysqld(_Z11mysqld_mainiPPc+0x4ae)[0x55d255bfe0be]
      /lib64/libc.so.6(__libc_start_main+0xf5)[0x7f65207553d5]
      /usr/sbin/mysqld(+0x4f2add)[0x55d255bf1add]
      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...
      

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            Assignee:
            Elkin Andrei Elkin
            Reporter:
            valerii Valerii Kravchuk
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              Created:
              Updated:
              Resolved: