Signal11 seen with Multi-table update of federated table followed by shutdown

#0  __pthread_kill_implementation (no_tid=0, signo=11, threadid=<optimized out>) at ./nptl/pthread_kill.c:44

#1  __pthread_kill_internal (signo=11, threadid=<optimized out>) at ./nptl/pthread_kill.c:78

#2  __GI___pthread_kill (threadid=<optimized out>, signo=11) at ./nptl/pthread_kill.c:89

#3  my_write_core (sig=11) at /home/ppandith/wl-24813/mysys/stacktrace.c:424

#4  handle_fatal_signal (sig=11) at /home/ppandith/wl-24813/sql/signal_handler.cc:298

#5  <signal handler called>

#6  __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:76

#7  __printf_buffer (buf=buf@entry=, format=format@entry="Got error %d when trying to lock mutex %s at %s, line %d\n", ap=ap@entry=, 

    mode_flags=mode_flags@entry=0) at ./stdio-common/vfprintf-process-arg.c:435

#8  __vfprintf_internal (s=<_IO_2_1_stderr_>, format="Got error %d when trying to lock mutex %s at %s, line %d\n", ap=ap@entry=, 

    mode_flags=mode_flags@entry=0) at ./stdio-common/vfprintf-internal.c:1559

#9  __fprintf (stream=<optimized out>, format=<optimized out>) at ./stdio-common/fprintf.c:32

#10 safe_mutex_lock (mp=, my_flags=0, file="/home/ppandith/wl-24813/sql/sql_class.h", line=3280)

    at /home/ppandith/wl-24813/mysys/thr_mutex.c:290

#11 psi_mutex_lock (that=, file="/home/ppandith/wl-24813/sql/sql_class.h", line=3280)

    at /home/ppandith/wl-24813/mysys/my_thr_init.c:471

#12 inline_mysql_mutex_lock (that=, src_file="/home/ppandith/wl-24813/sql/sql_class.h", src_line=3280)

    at /home/ppandith/wl-24813/include/mysql/psi/mysql_thread.h:746

#13 thd_async_state::wait_for_pending_ops (this=) at /home/ppandith/wl-24813/sql/sql_class.h:3280

#14 net_real_write (net=, packet="\001", len=5) at /home/ppandith/wl-24813/sql/net_serv.cc:649

#15 net_flush (net=) at /home/ppandith/wl-24813/sql/net_serv.cc:387

#16 net_write_command (net=, command=1 '\001', header=, head_len=0, packet=, len=0) at /home/ppandith/wl-24813/sql/net_serv.cc:537

#17 cli_advanced_command (mysql=, command=COM_QUIT, header=, header_length=0, arg=, arg_length=0, skip_check=1 '\001', stmt=)

    at /home/ppandith/wl-24813/sql-common/client.c:504

#18 mysql_close_slow_part (mysql=) at /home/ppandith/wl-24813/sql-common/client.c:3485

#19 server_mysql_close (mysql=) at /home/ppandith/wl-24813/sql-common/client.c:3497

#20 federatedx_io_mysql::~federatedx_io_mysql (this=, __in_chrg=<optimized out>)

    at /home/ppandith/wl-24813/storage/federatedx/federatedx_io_mysql.cc:150

#21 federatedx_io_mysql::~federatedx_io_mysql (this=, __in_chrg=<optimized out>)

    at /home/ppandith/wl-24813/storage/federatedx/federatedx_io_mysql.cc:154

#22 federatedx_txn::close (this=<zero_txn>, server=) at /home/ppandith/wl-24813/storage/federatedx/federatedx_txn.cc:84

#23 free_server (txn=<zero_txn>, server=) at /home/ppandith/wl-24813/storage/federatedx/ha_federatedx.cc:1711

#24 free_share (txn=<zero_txn>, share=) at /home/ppandith/wl-24813/storage/federatedx/ha_federatedx.cc:1750

#25 ha_federatedx::close (this=) at /home/ppandith/wl-24813/storage/federatedx/ha_federatedx.cc:1884

#26 handler::ha_close (this=) at /home/ppandith/wl-24813/sql/handler.cc:4012

#27 closefrm (table=) at /home/ppandith/wl-24813/sql/table.cc:4907

#28 intern_close_table (table=) at /home/ppandith/wl-24813/sql/table_cache.cc:230

#29 tc_purge () at /home/ppandith/wl-24813/sql/table_cache.cc:324

#30 purge_tables () at /home/ppandith/wl-24813/sql/sql_base.cc:338

#31 tdc_start_shutdown () at /home/ppandith/wl-24813/sql/table_cache.cc:649

#32 clean_up (print_message=true) at /home/ppandith/wl-24813/sql/mysqld.cc:2025

#33 mysqld_main (argc=12, argv=) at /home/ppandith/wl-24813/sql/mysqld.cc:6445

#34 main (argc=11, argv=) at /home/ppandith/wl-24813/sql/main.cc:34

create table s1( a int);

create table s2(a int);

create table s1(a int)  ENGINE="FEDERATED" CONNECTION='mysql://u3:pass1@127.0.0.1:3306/m8/s1';

create table s2(a int)  ENGINE="FEDERATED" CONNECTION='mysql://u3:pass1@127.0.0.1:3306/m8/s2';

update s1,s2 set s1.a=1;

shutdown;