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  1. MariaDB Server
  2. MDEV-14662

crash when packets out of order

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      Description

      I noticed mysqld crash after running for some time.
      This has the spider engine running but I don't think this crash looks spider related.

      Version running was 10.3 branch commit 159a6c2e608d04732cb6

      Logging shows

      mysqld: /home/myuser/src/server/sql/net_serv.cc:1163: ulong my_real_read(NET*, size_t*, my_bool): Assertion `0' failed.
      171215 10:36:07 [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: 10.3.3-MariaDB-debug-log
      key_buffer_size=134217728
      read_buffer_size=131072
      max_used_connections=3
      max_threads=302
      thread_count=30
      It is possible that mysqld could use up to
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 485739 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x7fa7ac005030
      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 = 0x7fa8b4249e68 thread_stack 0x49000
      /usr/local/mysql/bin/mysqld(my_print_stacktrace+0x3d)[0x1259b0b]
      /usr/local/mysql/bin/mysqld(handle_fatal_signal+0x3a3)[0x9cba3a]
      /lib64/libpthread.so.0(+0xf5e0)[0x7fa8d04675e0]
      /lib64/libc.so.6(gsignal+0x37)[0x7fa8cecc91f7]
      /lib64/libc.so.6(abort+0x148)[0x7fa8cecca8e8]
      /lib64/libc.so.6(+0x2e266)[0x7fa8cecc2266]
      /lib64/libc.so.6(+0x2e312)[0x7fa8cecc2312]
      /usr/local/mysql/bin/mysqld[0x6351d8]
      /usr/local/mysql/bin/mysqld(my_net_read_packet_reallen+0x4a)[0x63527c]
      /usr/local/mysql/bin/mysqld(my_net_read_packet+0x2f)[0x635230]
      /usr/local/mysql/bin/mysqld[0x688288]
      mysys/stacktrace.c:269(my_print_stacktrace)[0x689aa0]
      sql/signal_handler.cc:168(handle_fatal_signal)[0x68893b]
      sql/sql_acl.cc:12979(server_mpvio_read_packet(st_plugin_vio*, unsigned char**))[0x688cc3]
      sql/sql_connect.cc:1088(check_connection(THD*))[0x8598ab]
      sql/sql_connect.cc:1157(login_connection(THD*))[0x859a1b]
      sql/sql_connect.cc:1334(thd_prepare_connection(THD*))[0x85a086]
      sql/sql_connect.cc:1411(do_handle_one_connection(CONNECT*))[0x85a2a7]
      sql/sql_connect.cc:1327(handle_one_connection)[0x85a05b]
      perfschema/pfs.cc:1865(pfs_spawn_thread)[0x11e48d0]
      /lib64/libpthread.so.0(+0x7e25)[0x7fa8d045fe25]
      /lib64/libc.so.6(clone+0x6d)[0x7fa8ced8c34d]
       
      Trying to get some variables.
      Some pointers may be invalid and cause the dump to abort.
      Query (0x0): is an invalid pointer
      

      Reporting in case this is something that's not known.

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            • Assignee:
              serg Sergei Golubchik
              Reporter:
              sjmudd Simon Mudd
            • Votes:
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              • Created:
                Updated:
                Resolved: