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  1. MariaDB Server
  2. MDEV-23588

Galera assertion in rpl_sql_thread_info::cached_charset_compare

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Details

    • Bug
    • Status: Open (View Workflow)
    • Major
    • Resolution: Unresolved
    • 10.4
    • 10.4
    • Galera
    • None

    Description

      • Found using randgen
      • NULL-pointer on replay

        (gdb) bt
        #0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:56
        #1  0x000055c279068b3e in my_write_core (sig=sig@entry=11) at /home/jan/mysql/10.4/mysys/stacktrace.c:386
        #2  0x000055c278ba4228 in handle_fatal_signal (sig=11) at /home/jan/mysql/10.4/sql/signal_handler.cc:343
        #3  <signal handler called>
        #4  0x000055c278a84756 in rpl_sql_thread_info::cached_charset_compare (this=0x0, charset=charset@entry=0x7f55f0072ca8 "\b") at /home/jan/mysql/10.4/sql/rpl_rli.cc:2525
        #5  0x000055c278ca7168 in Query_log_event::do_apply_event (this=0x7f55f0072bb8, rgi=0x7f55f00588a0, query_arg=0x7f55f005b6a3 "SAVEPOINT `A`", q_len_arg=13) at /home/jan/mysql/10.4/sql/log_event.cc:5573
        #6  0x000055c278b2347d in Log_event::apply_event (rgi=0x7f55f00588a0, this=0x7f55f0072bb8) at /home/jan/mysql/10.4/sql/log_event.h:1482
        #7  wsrep_apply_events (thd=thd@entry=0x7f55f004f478, rli=<optimized out>, events_buf=<optimized out>, buf_len=0) at /home/jan/mysql/10.4/sql/wsrep_applier.cc:200
        #8  0x000055c278b0e39c in Wsrep_replayer_service::apply_write_set (this=<optimized out>, ws_meta=..., data=...) at /home/jan/mysql/10.4/wsrep-lib/include/wsrep/buffer.hpp:48
        #9  0x000055c2790cad2a in apply_write_set (server_state=..., high_priority_service=..., ws_handle=..., ws_meta=..., data=...) at /home/jan/mysql/10.4/wsrep-lib/src/server_state.cpp:327
        #10 0x000055c2790cbd71 in wsrep::server_state::on_apply (this=<optimized out>, high_priority_service=..., ws_handle=..., ws_meta=..., data=...) at /home/jan/mysql/10.4/wsrep-lib/src/server_state.cpp:1136
        #11 0x000055c2790d74cd in wsrep::high_priority_service::apply (data=..., ws_meta=..., ws_handle=..., this=0x7f566bc0be40) at /home/jan/mysql/10.4/wsrep-lib/include/wsrep/high_priority_service.hpp:47
        #12 (anonymous namespace)::apply_cb (ctx=ctx@entry=0x7f566bc0be40, wsh=wsh@entry=0x7f566bc0b6b0, flags=<optimized out>, flags@entry=65, buf=buf@entry=0x7f566bc0b6c0, meta=meta@entry=0x7f566bc0b970, exit_loop=exit_loop@entry=0x7f566bc0b930) at /home/jan/mysql/10.4/wsrep-lib/src/wsrep_provider_v26.cpp:502
        #13 0x00007f56bb9e4bf5 in galera::TrxHandleSlave::apply (this=this@entry=0x7f56941193b0, recv_ctx=recv_ctx@entry=0x7f566bc0be40, apply_cb=0x55c2790d73b0 <(anonymous namespace)::apply_cb(void*, wsrep_ws_handle_t const*, uint32_t, wsrep_buf_t const*, wsrep_trx_meta_t const*, wsrep_bool_t*)>, meta=..., exit_loop=@0x7f566bc0b930: false) at galera/src/trx_handle.cpp:391
        #14 0x00007f56bba31288 in galera::ReplicatorSMM::replay_trx (this=0x55c27a634e90, trx=..., lock=..., trx_ctx=0x7f566bc0be40) at galera/src/replicator_smm.cpp:1108
        #15 0x00007f56bba4bb22 in galera_replay_trx (gh=<optimized out>, trx_handle=<optimized out>, recv_ctx=0x7f566bc0be40) at galera/src/wsrep_provider.cpp:311
        #16 0x000055c2790d7e9c in wsrep::wsrep_provider_v26::replay (this=<optimized out>, ws_handle=..., reply_service=<optimized out>) at /home/jan/mysql/10.4/wsrep-lib/src/wsrep_provider_v26.cpp:204
        #17 0x000055c278b0d7c8 in Wsrep_client_service::replay (this=0x7f55f0006b90) at /home/jan/mysql/10.4/wsrep-lib/include/wsrep/transaction.hpp:219
        #18 0x000055c2790d280c in wsrep::transaction::replay (this=0x7f55f0006c10, lock=...) at /home/jan/mysql/10.4/wsrep-lib/src/transaction.cpp:1703
        #19 0x000055c2790d473b in wsrep::transaction::after_statement (this=this@entry=0x7f55f0006c10) at /home/jan/mysql/10.4/wsrep-lib/src/transaction.cpp:816
        #20 0x000055c2790bf5d5 in wsrep::client_state::after_statement (this=this@entry=0x7f55f0006ba8) at /home/jan/mysql/10.4/wsrep-lib/src/client_state.cpp:246
        #21 0x000055c2789a4d95 in wsrep_after_statement (thd=0x7f55f0000c48) at /home/jan/mysql/10.4/sql/sql_class.h:4913
        #22 wsrep_mysql_parse (thd=0x7f55f0000c48, rawbuf=0x7f55f000ffc0 "START TRANSACTION /* QNO 19413 CON_ID 25 */", length=43, parser_state=0x7f566bc0c4f0, is_com_multi=<optimized out>, is_next_command=<optimized out>) at /home/jan/mysql/10.4/sql/sql_parse.cc:7730
        #23 0x000055c2789a825b in dispatch_command (command=<optimized out>, thd=0x7f55f0000c48, packet=0x7f55f0007cb9 "START TRANSACTION /* QNO 19413 CON_ID 25 */ ", packet_length=<optimized out>, is_com_multi=<optimized out>, is_next_command=<optimized out>) at /home/jan/mysql/10.4/sql/sql_class.h:1168
        #24 0x000055c2789a8875 in do_command (thd=0x7f55f0000c48) at /home/jan/mysql/10.4/sql/sql_parse.cc:1352
        #25 0x000055c278a8e5e4 in do_handle_one_connection (connect=connect@entry=0x55c27af45cc8) at /home/jan/mysql/10.4/sql/sql_connect.cc:1412
        #26 0x000055c278a8e726 in handle_one_connection (arg=0x55c27af45cc8) at /home/jan/mysql/10.4/sql/sql_connect.cc:1316
        #27 0x00007f56bcf1f609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        #28 0x00007f56bc6dd103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
        

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            seppo Seppo Jaakola
            jplindst Jan Lindström (Inactive)
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