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  1. MariaDB Server
  2. MDEV-16693

libmariadbclient not threadsafe anymore

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Incomplete
    • Affects Version/s: 10.1.34
    • Fix Version/s: N/A
    • Component/s: libmariadb
    • Labels:
      None
    • Environment:
      Linux

      Description

      libmariadbclient connections are not thread safe anymore.
      This is a problem shared with libmysqlclient, under which it is reproducible.
      The application with the issue is strongSwan, which is heavily multithreaded and reuses connections. The code worked fine previously in heavily loaded environments, but not anymore since at least the last version. The relevant code can be seen under this URL: https://github.com/strongswan/strongswan/blob/master/src/libstrongswan/plugins/mysql/mysql_database.c

      The stack traces are reproducible and always occur with either memory access or memory allocation in libmysqlclient.so of libmariadbclient.

      The coredumps are attached and so are the built packages for Arch, which contain all relevant libraries. The packages are too large to upload here, so they are available under this URL: https://thermi.consulting/~thermi~private/00354388-8950-4ffe-baaf-dbb6aa6dfa35/

      Attached is also a valgrind output of a run of strongSwan in which many invalid reads or writes in the mysql libraries occur. This should make it easier to figure out on your end.
      I do not remember to which crash the file relates. I tested this many times, so don't bother trying to do that.

      gcc: gcc 8.1.1+20180531
      mariadb: 10.1.34

      Please let me know if you need anything else.

      Stack Trace 1 from a scenario where two clients work with the connection objects:

                      Stack trace of thread 40388:                   
                      #0  0x00007f21df95d73b raise (libc.so.6)                                                                     
                      #1  0x00007f21df948406 abort (libc.so.6)       
                      #2  0x00005603242bf84b n/a (charon-systemd)    
                      #3  0x00007f21dfcf4a50 __restore_rt (libpthread.so.0)
                      #4  0x00007f21dfcddc90 main_arena (libc.so.6)                                                                
                      #5  0x00007f21d7fb1814 my_net_read_packet (libmysqlclient.so.18)
                      #6  0x00007f21d7fa3160 cli_safe_read (libmysqlclient.so.18)
                      #7  0x00007f21d7fa3552 cli_read_rows (libmysqlclient.so.18)                                                  
                      #8  0x00007f21d7f9f51d cli_read_prepare_result (libmysqlclient.so.18)
                      #9  0x00007f21d7fa17bd mysql_stmt_prepare (libmysqlclient.so.18)
                      #10 0x00007f21d85083e3 n/a (libstrongswan-mysql.so)  
                      #11 0x00007f21d85091af n/a (libstrongswan-mysql.so)
                      #12 0x00007f21d7230e17 n/a (libstrongswan-attr-sql.so)                                                       
                      #13 0x00007f21e042e49d n/a (libstrongswan.so.0)                                                              
                      #14 0x00007f21e042e5e5 enumerator_enumerate_default (libstrongswan.so.0)                                     
                      #15 0x00007f21e01d5506 n/a (libcharon.so.0)                 
                      #16 0x00007f21e01c8a08 n/a (libcharon.so.0)
                      #17 0x00007f21e01b7ae7 n/a (libcharon.so.0)
                      #18 0x00007f21e01b15df n/a (libcharon.so.0)    
                      #19 0x00007f21e044ee13 n/a (libstrongswan.so.0)
                      #20 0x00007f21e0460b8e n/a (libstrongswan.so.0)                                                              
                      #21 0x00007f21dfcea075 start_thread (libpthread.so.0)
                      #22 0x00007f21dfa1f2cf __clone (libc.so.6)
      

      Stack Trace 2, here with multiple threads involved

                      Stack trace of thread 37626:
                      #0  0x00007f336c56c73b raise (libc.so.6)
                      #1  0x00007f336c557406 abort (libc.so.6)
                      #2  0x00007f336c5ae6a8 __libc_message (libc.so.6)
                      #3  0x00007f336c5b4aea malloc_printerr (libc.so.6)
                      #4  0x00007f336c5b655c _int_free (libc.so.6)
                      #5  0x00007f3364be28ee vio_delete (libmysqlclient.so.18)
                      #6  0x00007f3364bb2066 end_server (libmysqlclient.so.18)
                      #7  0x00007f3364bb22a0 cli_safe_read (libmysqlclient.so.18)
                      #8  0x00007f3364bb7bd5 cli_advanced_command (libmysqlclient.so.18)
                      #9  0x00007f3364bad7a1 mysql_ping (libmysqlclient.so.18)
                      #10 0x00007f3365117da5 n/a (libstrongswan-mysql.so)
                      #11 0x00007f336511816e n/a (libstrongswan-mysql.so)
                      #12 0x00007f3363e3ff2d n/a (libstrongswan-attr-sql.so)
                      #13 0x00007f3363e40574 n/a (libstrongswan-attr-sql.so)
                      #14 0x00007f336cda24d3 n/a (libcharon.so.0)
                      #15 0x00007f336cde4217 n/a (libcharon.so.0)
                      #16 0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #17 0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #18 0x00007f336cdc05df n/a (libcharon.so.0)
                      #19 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #20 0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #21 0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #22 0x00007f336c62e2cf __clone (libc.so.6)
                      
                      Stack trace of thread 37618:
                      #0  0x00007f336c90299e recv (libpthread.so.0)
                      #1  0x00007f3364be3994 recv (libmysqlclient.so.18)
                      #2  0x00007f3364be3a1e vio_read_buff (libmysqlclient.so.18)
                      #3  0x00007f3364bbf9f6 my_real_read (libmysqlclient.so.18)
                      #4  0x00007f3364bc0814 my_net_read_packet (libmysqlclient.so.18)
                      #5  0x00007f3364bb2160 cli_safe_read (libmysqlclient.so.18)
                      #6  0x00007f3364bb7bd5 cli_advanced_command (libmysqlclient.so.18)
                      #7  0x00007f3364bad7a1 mysql_ping (libmysqlclient.so.18)
                      #8  0x00007f3365117da5 n/a (libstrongswan-mysql.so)
                      #9  0x00007f3365117e9e n/a (libstrongswan-mysql.so)
                      #10 0x00007f3363e3facc n/a (libstrongswan-attr-sql.so)
                      #11 0x00007f3363e4052f n/a (libstrongswan-attr-sql.so)
                      #12 0x00007f336cda24d3 n/a (libcharon.so.0)
                      #13 0x00007f336cde4217 n/a (libcharon.so.0)
                      #14 0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #15 0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #16 0x00007f336cdc05df n/a (libcharon.so.0)
                      #17 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #18 0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #19 0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #20 0x00007f336c62e2cf __clone (libc.so.6)
                      
                      Stack trace of thread 37439:
                      #0  0x00007f336c56d4ec __sigtimedwait (libc.so.6)
                      #1  0x0000559b2e7ee3cb n/a (charon-systemd)
                      #2  0x00007f336c558f4b __libc_start_main (libc.so.6)
                      #3  0x0000559b2e7ee5fa n/a (charon-systemd)
       
                      Stack trace of thread 37622:
                      #0  0x00007f336c63b5ab __lll_lock_wait_private (libc.so.6)
                      #1  0x00007f336c5b6676 _int_free (libc.so.6)
                      #2  0x00007f3364bbf8c6 net_end (libmysqlclient.so.18)
                      #3  0x00007f3364bb2102 end_server (libmysqlclient.so.18)
                      #4  0x00007f3364bb22a0 cli_safe_read (libmysqlclient.so.18)
                      #5  0x00007f3364bb2552 cli_read_rows (libmysqlclient.so.18)
                      #6  0x00007f3364bae51d cli_read_prepare_result (libmysqlclient.so.18)
                      #7  0x00007f3364bb07bd mysql_stmt_prepare (libmysqlclient.so.18)
                      #8  0x00007f33651173e3 n/a (libstrongswan-mysql.so)
                      #9  0x00007f33651181af n/a (libstrongswan-mysql.so)
                      #10 0x00007f3363e3ff2d n/a (libstrongswan-attr-sql.so)
                      #11 0x00007f3363e40574 n/a (libstrongswan-attr-sql.so)
                      #12 0x00007f336cda24d3 n/a (libcharon.so.0)
                      #13 0x00007f336cde4217 n/a (libcharon.so.0)
                      #14 0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #15 0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #16 0x00007f336cdc05df n/a (libcharon.so.0)
                      #17 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #18 0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #19 0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #20 0x00007f336c62e2cf __clone (libc.so.6)
                      
                      Stack trace of thread 37623:
                      #0  0x00007f336c90299e recv (libpthread.so.0)
                      #1  0x00007f3364be3994 recv (libmysqlclient.so.18)
                      #2  0x00007f3364be3a1e vio_read_buff (libmysqlclient.so.18)
                      #3  0x00007f3364bbf9f6 my_real_read (libmysqlclient.so.18)
                      #4  0x00007f3364bc0814 my_net_read_packet (libmysqlclient.so.18)
                      #5  0x00007f3364bb2160 cli_safe_read (libmysqlclient.so.18)
                      #6  0x00007f3364bb3828 cli_read_query_result (libmysqlclient.so.18)
                      #7  0x00007f3364bae13f execute (libmysqlclient.so.18)
                      #8  0x00007f3364bae91d cli_stmt_execute (libmysqlclient.so.18)
                      #9  0x00007f3364bb0ee6 mysql_stmt_execute (libmysqlclient.so.18)
                      #10 0x00007f33651174ed n/a (libstrongswan-mysql.so)
                      #11 0x00007f3365118072 n/a (libstrongswan-mysql.so)
                      #12 0x00007f3363e3fb6f n/a (libstrongswan-attr-sql.so)
                      #13 0x00007f3363e4052f n/a (libstrongswan-attr-sql.so)
                      #14 0x00007f336cda24d3 n/a (libcharon.so.0)
                      #15 0x00007f336cde4217 n/a (libcharon.so.0)
                      #16 0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #17 0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #18 0x00007f336cdc05df n/a (libcharon.so.0)
                      #19 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #20 0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #21 0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #22 0x00007f336c62e2cf __clone (libc.so.6)
                      
                      Stack trace of thread 37625:
                      #0  0x00007f336c902b1e __send (libpthread.so.0)
                      #1  0x00007f3364be3c68 inline_mysql_socket_send (libmysqlclient.so.18)
                      #2  0x00007f3364bbfcbe net_real_write (libmysqlclient.so.18)
                      #3  0x00007f3364bbffc4 net_flush (libmysqlclient.so.18)
                      #4  0x00007f3364bc0616 net_write_command (libmysqlclient.so.18)
                      #5  0x00007f3364bb7b35 cli_advanced_command (libmysqlclient.so.18)
                      #6  0x00007f3364bb0a4b mysql_stmt_close (libmysqlclient.so.18)
                      #7  0x00007f336511809f n/a (libstrongswan-mysql.so)
                      #8  0x00007f3363e3fb6f n/a (libstrongswan-attr-sql.so)
                      #9  0x00007f3363e4052f n/a (libstrongswan-attr-sql.so)
                      #10 0x00007f336cda24d3 n/a (libcharon.so.0)
                      #11 0x00007f336cde4217 n/a (libcharon.so.0)
                      #12 0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #13 0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #14 0x00007f336cdc05df n/a (libcharon.so.0)
                      #15 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #16 0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #17 0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #18 0x00007f336c62e2cf __clone (libc.so.6)
       
                      Stack trace of thread 37631:
                      #0  0x00007f336c8ff3c6 pthread_cond_timedwait@@GLIBC_2.3.2 (libpthread.so.0)
                      #1  0x00007f336d070589 n/a (libstrongswan.so.0)
                      #2  0x00007f336d05e663 n/a (libstrongswan.so.0)
                      #3  0x00007f336d05d4a2 n/a (libstrongswan.so.0)
                      #4  0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #5  0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #6  0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #7  0x00007f336c62e2cf __clone (libc.so.6)
                      
                      Stack trace of thread 37621:
                      #0  0x00007f336c8fefcc pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0)
                      #1  0x00007f336cdbf3b8 n/a (libcharon.so.0)
                      #2  0x00007f336d05d4a2 n/a (libstrongswan.so.0)
                      #3  0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #4  0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #5  0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #6  0x00007f336c62e2cf __clone (libc.so.6)
                      
                      Stack trace of thread 37628:
                      #0  0x00007f336c63b5f4 __libc_enable_asynccancel (libc.so.6)
                      #1  0x00007f336c623c26 __poll (libc.so.6)
                      #2  0x00007f3364bbfbfb poll (libmysqlclient.so.18)
                      #3  0x00007f3364bb7b1d cli_advanced_command (libmysqlclient.so.18)
                      #4  0x00007f3364bb0a4b mysql_stmt_close (libmysqlclient.so.18)
                      #5  0x00007f336511809f n/a (libstrongswan-mysql.so)
                      #6  0x00007f3363e3fb6f n/a (libstrongswan-attr-sql.so)
                      #7  0x00007f3363e4052f n/a (libstrongswan-attr-sql.so)
                      #8  0x00007f336cda24d3 n/a (libcharon.so.0)
                      #9  0x00007f336cde4217 n/a (libcharon.so.0)
                      #10 0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #11 0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #12 0x00007f336cdc05df n/a (libcharon.so.0)
                      #13 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #14 0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #15 0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #16 0x00007f336c62e2cf __clone (libc.so.6)
                      
                      Stack trace of thread 37620:
                      #0  0x00007f336c5b7e90 _int_malloc (libc.so.6)
                      #1  0x00007f336c5b941a malloc (libc.so.6)
                      #2  0x00007f336cdb734f ike_header_create (libcharon.so.0)
                      #3  0x00007f336cdb20b8 n/a (libcharon.so.0)
                      #4  0x00007f336cdaeb64 n/a (libcharon.so.0)
                      #5  0x00007f336cdbeb1f n/a (libcharon.so.0)
                      #6  0x00007f336d05d4a2 n/a (libstrongswan.so.0)
                      #7  0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #8  0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #9  0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #10 0x00007f336c62e2cf __clone (libc.so.6)
       
                      Stack trace of thread 37629:
                      #0  0x00007f3364bebd25 free_root (libmysqlclient.so.18)
                      #1  0x00007f3364bb0e30 reset_stmt_handle (libmysqlclient.so.18)
                      #2  0x00007f33651174ed n/a (libstrongswan-mysql.so)
                      #3  0x00007f3365118072 n/a (libstrongswan-mysql.so)
                      #4  0x00007f3363e3fb6f n/a (libstrongswan-attr-sql.so)
                      #5  0x00007f3363e4052f n/a (libstrongswan-attr-sql.so)
                      #6  0x00007f336cda24d3 n/a (libcharon.so.0)
                      #7  0x00007f336cde4217 n/a (libcharon.so.0)
                      #8  0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #9  0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #10 0x00007f336cdc05df n/a (libcharon.so.0)
                      #11 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #12 0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #13 0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #14 0x00007f336c62e2cf __clone (libc.so.6)
                      
                      Stack trace of thread 37630:
                      #0  0x00007f3364bb28a9 cli_read_rows (libmysqlclient.so.18)
                      #1  0x00007f3364bb398e cli_read_query_result (libmysqlclient.so.18)
                      #2  0x00007f3364bae13f execute (libmysqlclient.so.18)
                      #3  0x00007f3364bae91d cli_stmt_execute (libmysqlclient.so.18)
                      #4  0x00007f3364bb0ee6 mysql_stmt_execute (libmysqlclient.so.18)
                      #5  0x00007f33651174ed n/a (libstrongswan-mysql.so)
                      #6  0x00007f33651181af n/a (libstrongswan-mysql.so)
                      #7  0x00007f3363e3fb08 n/a (libstrongswan-attr-sql.so)
                      #8  0x00007f3363e4052f n/a (libstrongswan-attr-sql.so)
                      #9  0x00007f336cda24d3 n/a (libcharon.so.0)
                      #10 0x00007f336cde4217 n/a (libcharon.so.0)
                      #11 0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #12 0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #13 0x00007f336cdc05df n/a (libcharon.so.0)
                      #14 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #15 0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #16 0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #17 0x00007f336c62e2cf __clone (libc.so.6)
                      
                      Stack trace of thread 37627:
                      #0  0x00007f336c5b8001 _int_malloc (libc.so.6)
                      #1  0x00007f336c5b941a malloc (libc.so.6)
                      #2  0x00007f3364bf0767 my_malloc (libmysqlclient.so.18)
                      #3  0x00007f3364bebaa3 alloc_root (libmysqlclient.so.18)
                      #4  0x00007f3364bb261e cli_read_rows (libmysqlclient.so.18)
                      #5  0x00007f3364bb398e cli_read_query_result (libmysqlclient.so.18)
                      #6  0x00007f3364bae13f execute (libmysqlclient.so.18)
                      #7  0x00007f3364bae91d cli_stmt_execute (libmysqlclient.so.18)
                      #8  0x00007f3364bb0ee6 mysql_stmt_execute (libmysqlclient.so.18)
                      #9  0x00007f33651174ed n/a (libstrongswan-mysql.so)
                      #10 0x00007f33651181af n/a (libstrongswan-mysql.so)
                      #11 0x00007f3363e3fb08 n/a (libstrongswan-attr-sql.so)
                      #12 0x00007f3363e4052f n/a (libstrongswan-attr-sql.so)
                      #13 0x00007f336cda24d3 n/a (libcharon.so.0)
                      #14 0x00007f336cde4217 n/a (libcharon.so.0)
                      #15 0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #16 0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #17 0x00007f336cdc05df n/a (libcharon.so.0)
                      #18 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #19 0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #20 0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #21 0x00007f336c62e2cf __clone (libc.so.6)
                      Stack trace of thread 37632:
                      #0  0x00007f3364be3ad6 vio_read_buff (libmysqlclient.so.18)
                      #1  0x00007f3364bbf9f6 my_real_read (libmysqlclient.so.18)
                      #2  0x00007f3364bc0814 my_net_read_packet (libmysqlclient.so.18)
                      #3  0x00007f3364bb2160 cli_safe_read (libmysqlclient.so.18)
                      #4  0x00007f3364bb2787 cli_read_rows (libmysqlclient.so.18)
                      #5  0x00007f3364bae51d cli_read_prepare_result (libmysqlclient.so.18)
                      #6  0x00007f3364bb07bd mysql_stmt_prepare (libmysqlclient.so.18)
                      #7  0x00007f33651173e3 n/a (libstrongswan-mysql.so)
                      #8  0x00007f33651181af n/a (libstrongswan-mysql.so)
                      #9  0x00007f3363e3fb08 n/a (libstrongswan-attr-sql.so)
                      #10 0x00007f3363e4052f n/a (libstrongswan-attr-sql.so)
                      #11 0x00007f336cda24d3 n/a (libcharon.so.0)
                      #12 0x00007f336cde4217 n/a (libcharon.so.0)
                      #13 0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #14 0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #15 0x00007f336cdc05df n/a (libcharon.so.0)
                      #16 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #17 0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #18 0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #19 0x00007f336c62e2cf __clone (libc.so.6)
                      
                      Stack trace of thread 37624:
                      #0  0x00007f336c5b8001 _int_malloc (libc.so.6)
                      #1  0x00007f336c5b941a malloc (libc.so.6)
                      #2  0x00007f336c5a483d _IO_file_doallocate (libc.so.6)
                      #3  0x00007f336c5b25c0 _IO_doallocbuf (libc.so.6)
                      #4  0x00007f336c5b1635 _IO_file_underflow@@GLIBC_2.2.5 (libc.so.6)
                      #5  0x00007f336c5b2672 _IO_default_uflow (libc.so.6)
                      #6  0x00007f336c5acff8 _IO_getc (libc.so.6)
                      #7  0x00007f336d06d6a2 n/a (libstrongswan.so.0)
                      #8  0x00007f336d06da3d n/a (libstrongswan.so.0)
                      #9  0x0000559b2e7ee80c n/a (charon-systemd)
                      #10 0x00007f336c903a50 __restore_rt (libpthread.so.0)
                      #11 0x00007f3364bbfabc my_real_read (libmysqlclient.so.18)
                      #12 0x00007f3364bc0814 my_net_read_packet (libmysqlclient.so.18)
                      #13 0x00007f3364bb2160 cli_safe_read (libmysqlclient.so.18)
                      #14 0x00007f3364bae4c7 cli_read_prepare_result (libmysqlclient.so.18)
                      #15 0x00007f3364bb07bd mysql_stmt_prepare (libmysqlclient.so.18)
                      #16 0x00007f33651173e3 n/a (libstrongswan-mysql.so)
                      #17 0x00007f3365118072 n/a (libstrongswan-mysql.so)
                      #18 0x00007f3363e3fb6f n/a (libstrongswan-attr-sql.so)
                      #19 0x00007f3363e4052f n/a (libstrongswan-attr-sql.so)
                      #20 0x00007f336cda24d3 n/a (libcharon.so.0)
                      #21 0x00007f336cde4217 n/a (libcharon.so.0)
                      #22 0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #23 0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #24 0x00007f336cdc05df n/a (libcharon.so.0)
                      #25 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #26 0x00007f336d06fb8e n/a (libstrongswan.so.0)
                      #27 0x00007f336c8f9075 start_thread (libpthread.so.0)
                      #28 0x00007f336c62e2cf __clone (libc.so.6)
       
                      Stack trace of thread 37633:
                      #0  0x00007f336c90299e recv (libpthread.so.0)
                      #1  0x00007f3364be3994 recv (libmysqlclient.so.18)
                      #2  0x00007f3364be3a1e vio_read_buff (libmysqlclient.so.18)
                      #3  0x00007f3364bbf9f6 my_real_read (libmysqlclient.so.18)
                      #4  0x00007f3364bc0814 my_net_read_packet (libmysqlclient.so.18)
                      #5  0x00007f3364bb2160 cli_safe_read (libmysqlclient.so.18)
                      #6  0x00007f3364bae4c7 cli_read_prepare_result (libmysqlclient.so.18)
                      #7  0x00007f3364bb07bd mysql_stmt_prepare (libmysqlclient.so.18)
                      #8  0x00007f33651173e3 n/a (libstrongswan-mysql.so)
                      #9  0x00007f33651181af n/a (libstrongswan-mysql.so)
                      #10 0x00007f3363e3ff2d n/a (libstrongswan-attr-sql.so)
                      #11 0x00007f3363e40574 n/a (libstrongswan-attr-sql.so)
                      #12 0x00007f336cda24d3 n/a (libcharon.so.0)
                      #13 0x00007f336cde4217 n/a (libcharon.so.0)
                      #14 0x00007f336cdd7a08 n/a (libcharon.so.0)
                      #15 0x00007f336cdc6ae7 n/a (libcharon.so.0)
                      #16 0x00007f336cdc05df n/a (libcharon.so.0)
                      #17 0x00007f336d05de13 n/a (libstrongswan.so.0)
                      #18 0x00007f336d06fb8e n/a (libstrongswan.so.0)
      

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            Assignee:
            serg Sergei Golubchik
            Reporter:
            thermi Noel Kuntze
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              Created:
              Updated:
              Resolved:

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