Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.2.3, 10.2.7, 10.2(EOL)
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None
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CentOS Linux release 7.3.1611 (Core) x86_64
Description
Executing the following stored procedure will cause a crash of mysqld.
create procedure nah_foo() |
modifies sql data
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-- type: log
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begin
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declare l_done boolean default false; |
declare l_text varchar(255); |
declare l_count int; |
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declare c_cursor cursor |
for |
select concat_ws(' ','hello','world') as hello_world |
, count(1) as count_1 |
from information_schema.TABLES |
;
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declare continue handler for sqlstate '02000' set l_done = true; |
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open c_cursor; |
loop1: loop
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fetch c_cursor |
into l_text |
, l_count
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;
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if (l_done) then |
close c_cursor; |
leave loop1;
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end if; |
end loop; |
end |
call nah_foo();
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ERROR 2013 (HY000): Lost connection to MySQL server during query
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Below is the error log of mysqld
170719 2:42:19 [ERROR] mysqld got signal 11 ;
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This could be because you hit a bug. It is also possible that this binary
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or one of the libraries it was linked against is corrupt, improperly built,
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or misconfigured. This error can also be caused by malfunctioning hardware.
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To report this bug, see https://mariadb.com/kb/en/reporting-bugs
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We will try our best to scrape up some info that will hopefully help
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diagnose the problem, but since we have already crashed,
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something is definitely wrong and this may fail.
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Server version: 10.2.6-MariaDB-log
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key_buffer_size=33554432
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read_buffer_size=131072
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max_used_connections=1
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max_threads=52
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thread_count=7
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It is possible that mysqld could use up to
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key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 146994 K bytes of memory
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Hope that's ok; if not, decrease some variables in the equation.
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Thread pointer: 0x7fd400000a88
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Attempting backtrace. You can use the following information to find out
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where mysqld died. If you see no messages after this, something went
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terribly wrong...
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stack_bottom = 0x7fd40cd21d70 thread_stack 0x49000
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/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x7fd426518c9e]
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/usr/sbin/mysqld(handle_fatal_signal+0x30d)[0x7fd425f6793d]
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/lib64/libpthread.so.0(+0xf370)[0x7fd4254d6370]
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/usr/sbin/mysqld(_ZN19Materialized_cursor24send_result_set_metadataEP3THDR4ListI4ItemE+0xb9)[0x7fd4260a49e9]
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/usr/sbin/mysqld(_ZN18Select_materialize24send_result_set_metadataER4ListI4ItemEj+0xe3)[0x7fd4260a4b73]
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mysys/stacktrace.c:268(my_print_stacktrace)[0x7fd425e302e9]
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sql/sql_select.cc:17930(JOIN::exec_inner())[0x7fd425e30c83]
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sql/sql_select.cc:3668(mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x7fd425e30dda]
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sql/sql_select.cc:373(handle_select(THD*, LEX*, select_result*, unsigned long))[0x7fd425e3191c]
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sql/sql_parse.cc:6432(execute_sqlcom_select(THD*, TABLE_LIST*))[0x7fd425dd5586]
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sql/sql_parse.cc:3448(mysql_execute_command(THD*))[0x7fd425de1807]
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sql/sql_cursor.cc:142(mysql_open_cursor(THD*, select_result*, Server_side_cursor**))[0x7fd4260a4547]
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sql/sp_rcontext.cc:459(sp_cursor::open(THD*))[0x7fd426096d3e]
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sql/sp_head.cc:3832(sp_instr_copen::exec_core(THD*, unsigned int*))[0x7fd42608c677]
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sql/sp_head.cc:2997(sp_lex_keeper::reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*))[0x7fd426092649]
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sql/sp_head.cc:3818(sp_instr_copen::execute(THD*, unsigned int*))[0x7fd4260929d8]
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sql/sp_head.cc:1325(sp_head::execute(THD*, bool))[0x7fd42608f4ee]
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sql/sp_head.cc:2112(sp_head::execute_procedure(THD*, List<Item>*))[0x7fd426090c3f]
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sql/sql_parse.cc:2883(do_execute_sp(THD*, sp_head*))[0x7fd425dd4f36]
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sql/sql_parse.cc:5797(mysql_execute_command(THD*))[0x7fd425dddf42]
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sql/sql_parse.cc:7875(mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool))[0x7fd425de4dee]
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sql/sql_parse.cc:1812(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x7fd425de7c2f]
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sql/sql_parse.cc:1364(do_command(THD*))[0x7fd425de87d1]
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sql/sql_connect.cc:1354(do_handle_one_connection(CONNECT*))[0x7fd425ea883a]
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sql/sql_connect.cc:1262(handle_one_connection)[0x7fd425ea895d]
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/lib64/libpthread.so.0(+0x7dc5)[0x7fd4254cedc5]
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/lib64/libc.so.6(clone+0x6d)[0x7fd423b2176d]
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Trying to get some variables.
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Some pointers may be invalid and cause the dump to abort.
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Query (0x7fd400011100): call nah_foo()
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Connection ID (thread ID): 23
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Status: NOT_KILLED
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Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on
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This stored procedure is running fine on MariaDB 10.1.x.
Attachments
Issue Links
- duplicates
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- Closed
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Thanks for the report and test case. Reproducible as described.
The problem was introduced in 10.2.3 by this commit:
commit 665045f985787d77318a17ccddd67ec3ff92f7bcAuthor: Igor BabaevDate: Mon Nov 21 10:33:06 2016 -0800Fixed bug mdev-11081.10.2 debug bc75c57cfc18be64f167d91c431076f581b0382b
mysqld: /data/src/10.2/sql/sql_cursor.cc:267: int Materialized_cursor::send_result_set_metadata(THD*, List<Item>&): Assertion `send_result_set_metadata.elements == item_list.elements' failed.170720 19:48:59 [ERROR] mysqld got signal 6 ;#7 0x00007f027531a312 in __GI___assert_fail (assertion=0x7f0278731ab0 "send_result_set_metadata.elements == item_list.elements", file=0x7f0278731a60 "/data/src/10.2/sql/sql_cursor.cc", line=267, function=0x7f0278731bc0 <Materialized_cursor::send_result_set_metadata(THD*, List<Item>&)::__PRETTY_FUNCTION__> "int Materialized_cursor::send_result_set_metadata(THD*, List<Item>&)") at assert.c:101#8 0x00007f0277fd75df in Materialized_cursor::send_result_set_metadata (this=0x7f02540e5d58, thd=0x7f0254000b00, send_result_set_metadata=...) at /data/src/10.2/sql/sql_cursor.cc:267#9 0x00007f0277fd7f52 in Select_materialize::send_result_set_metadata (this=0x7f02541767d8, list=..., flags=5) at /data/src/10.2/sql/sql_cursor.cc:452#10 0x00007f0277c1b50d in JOIN::exec_inner (this=0x7f02541781f8) at /data/src/10.2/sql/sql_select.cc:3476#11 0x00007f0277c1a9f6 in JOIN::exec (this=0x7f02541781f8) at /data/src/10.2/sql/sql_select.cc:3278#12 0x00007f0277c1bb9f in mysql_select (thd=0x7f0254000b00, tables=0x7f025406cb08, wild_num=0, fields=..., conds=0x0, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2684620544, result=0x7f02541767d8, unit=0x7f025416a770, select_lex=0x7f025416aea8) at /data/src/10.2/sql/sql_select.cc:3672#13 0x00007f0277c104ea in handle_select (thd=0x7f0254000b00, lex=0x7f025416a6a8, result=0x7f02541767d8, setup_tables_done_option=0) at /data/src/10.2/sql/sql_select.cc:373#14 0x00007f0277bdc3c8 in execute_sqlcom_select (thd=0x7f0254000b00, all_tables=0x7f025406cb08) at /data/src/10.2/sql/sql_parse.cc:6443#15 0x00007f0277bd2407 in mysql_execute_command (thd=0x7f0254000b00) at /data/src/10.2/sql/sql_parse.cc:3458#16 0x00007f0277fd70c4 in mysql_open_cursor (thd=0x7f0254000b00, result=0x7f0254015d88, pcursor=0x7f0254015dc0) at /data/src/10.2/sql/sql_cursor.cc:141#17 0x00007f0277fc501e in sp_cursor::open (this=0x7f0254015d80, thd=0x7f0254000b00) at /data/src/10.2/sql/sp_rcontext.cc:459#18 0x00007f0277fbf89b in sp_instr_copen::exec_core (this=0x7f025406b3c0, thd=0x7f0254000b00, nextp=0x7f026b7b21c4) at /data/src/10.2/sql/sp_head.cc:3832#19 0x00007f0277fbd965 in sp_lex_keeper::reset_lex_and_exec_core (this=0x7f025406afa0, thd=0x7f0254000b00, nextp=0x7f026b7b21c4, open_tables=false, instr=0x7f025406b3c0) at /data/src/10.2/sql/sp_head.cc:2998#20 0x00007f0277fbf7dc in sp_instr_copen::execute (this=0x7f025406b3c0, thd=0x7f0254000b00, nextp=0x7f026b7b21c4) at /data/src/10.2/sql/sp_head.cc:3817#21 0x00007f0277fb91e4 in sp_head::execute (this=0x7f02540098e8, thd=0x7f0254000b00, merge_da_on_success=true) at /data/src/10.2/sql/sp_head.cc:1324#22 0x00007f0277fbb26f in sp_head::execute_procedure (this=0x7f02540098e8, thd=0x7f0254000b00, args=0x7f02540052f8) at /data/src/10.2/sql/sp_head.cc:2113#23 0x00007f0277bd0aec in do_execute_sp (thd=0x7f0254000b00, sp=0x7f02540098e8) at /data/src/10.2/sql/sql_parse.cc:2889#24 0x00007f0277bd9ba2 in mysql_execute_command (thd=0x7f0254000b00) at /data/src/10.2/sql/sql_parse.cc:5799#25 0x00007f0277bdfd88 in mysql_parse (thd=0x7f0254000b00, rawbuf=0x7f0254012378 "call nah_foo()", length=14, parser_state=0x7f026b7b3200, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:7879#26 0x00007f0277bcde34 in dispatch_command (command=COM_QUERY, thd=0x7f0254000b00, packet=0x7f0254163581 "call nah_foo()", packet_length=14, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:1817#27 0x00007f0277bcc775 in do_command (thd=0x7f0254000b00) at /data/src/10.2/sql/sql_parse.cc:1362#28 0x00007f0277d184e7 in do_handle_one_connection (connect=0x7f027a1519f0) at /data/src/10.2/sql/sql_connect.cc:1354#29 0x00007f0277d18274 in handle_one_connection (arg=0x7f027a1519f0) at /data/src/10.2/sql/sql_connect.cc:1260#30 0x00007f027805f922 in pfs_spawn_thread (arg=0x7f027a1ec0a0) at /data/src/10.2/storage/perfschema/pfs.cc:1862#31 0x00007f02771ef064 in start_thread (arg=0x7f026b7b4700) at pthread_create.c:309#32 0x00007f02753d462d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:11110.2 non-debug a76c05bba060f4da5ec7c56e5634eaafb6d2ebfe
#2 <signal handler called>#3 Materialized_cursor::send_result_set_metadata (this=this@entry=0x7fc62405c1f0, thd=0x7fc6240009a8, send_result_set_metadata=...) at /data/src/10.2/sql/sql_cursor.cc:282#4 0x00007fc63cbf4837 in Select_materialize::send_result_set_metadata (this=0x7fc6240984f0, list=..., flags=<optimized out>) at /data/src/10.2/sql/sql_cursor.cc:452#5 0x00007fc63c9709d3 in JOIN::exec_inner (this=this@entry=0x7fc624099f10) at /data/src/10.2/sql/sql_select.cc:3476#6 0x00007fc63c971043 in JOIN::exec (this=this@entry=0x7fc624099f10) at /data/src/10.2/sql/sql_select.cc:3278#7 0x00007fc63c97118c in mysql_select (thd=thd@entry=0x7fc6240009a8, tables=0x7fc624089b60, wild_num=0, fields=..., conds=0x0, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2684620544, result=0x7fc6240984f0, unit=0x7fc62408c648, select_lex=0x7fc62408cd80) at /data/src/10.2/sql/sql_select.cc:3672#8 0x00007fc63c971b77 in handle_select (thd=thd@entry=0x7fc6240009a8, lex=lex@entry=0x7fc62408c580, result=result@entry=0x7fc6240984f0, setup_tables_done_option=setup_tables_done_option@entry=0) at /data/src/10.2/sql/sql_select.cc:373#9 0x00007fc63c90d17e in execute_sqlcom_select (thd=thd@entry=0x7fc6240009a8, all_tables=0x7fc624089b60) at /data/src/10.2/sql/sql_parse.cc:6443#10 0x00007fc63c9186ba in mysql_execute_command (thd=thd@entry=0x7fc6240009a8) at /data/src/10.2/sql/sql_parse.cc:3458#11 0x00007fc63cbf4ab4 in mysql_open_cursor (thd=0x7fc6240009a8, result=0x7fc6240127c0, pcursor=0x7fc6240127f8) at /data/src/10.2/sql/sql_cursor.cc:141#12 0x00007fc63cbe684e in sp_cursor::open (this=<optimized out>, thd=<optimized out>) at /data/src/10.2/sql/sp_rcontext.cc:459#13 0x00007fc63cbdbd97 in sp_instr_copen::exec_core (this=0x7fc6240a2668, thd=<optimized out>, nextp=0x7fc634e54844) at /data/src/10.2/sql/sp_head.cc:3832#14 0x00007fc63cbe2c49 in sp_lex_keeper::reset_lex_and_exec_core (this=0x7fc6240a2248, thd=thd@entry=0x7fc6240009a8, nextp=0x7fc634e54844, open_tables=open_tables@entry=false, instr=0x7fc6240a2668) at /data/src/10.2/sql/sp_head.cc:2998#15 0x00007fc63cbe3028 in sp_instr_copen::execute (this=<optimized out>, thd=0x7fc6240009a8, nextp=<optimized out>) at /data/src/10.2/sql/sp_head.cc:3817#16 0x00007fc63cbdeda6 in sp_head::execute (this=this@entry=0x7fc62409e760, thd=thd@entry=0x7fc6240009a8, merge_da_on_success=merge_da_on_success@entry=true) at /data/src/10.2/sql/sp_head.cc:1324#17 0x00007fc63cbe0480 in sp_head::execute_procedure (this=0x7fc62409e760, thd=thd@entry=0x7fc6240009a8, args=0x7fc624005060) at /data/src/10.2/sql/sp_head.cc:2113#18 0x00007fc63c90c9d6 in do_execute_sp (thd=0x7fc6240009a8, sp=<optimized out>) at /data/src/10.2/sql/sql_parse.cc:2889#19 0x00007fc63c917354 in mysql_execute_command (thd=thd@entry=0x7fc6240009a8) at /data/src/10.2/sql/sql_parse.cc:5809#20 0x00007fc63c91b71a in mysql_parse (thd=0x7fc6240009a8, rawbuf=<optimized out>, length=14, parser_state=0x7fc634e56210, is_com_multi=<optimized out>, is_next_command=<optimized out>) at /data/src/10.2/sql/sql_parse.cc:7879#21 0x00007fc63c91e1f9 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x7fc6240009a8, packet=packet@entry=0x7fc624006c19 "call nah_foo()", packet_length=packet_length@entry=14, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /data/src/10.2/sql/sql_parse.cc:1817#22 0x00007fc63c91ea84 in do_command (thd=0x7fc6240009a8) at /data/src/10.2/sql/sql_parse.cc:1362#23 0x00007fc63c9f2042 in do_handle_one_connection (connect=connect@entry=0x7fc63e5c05d8) at /data/src/10.2/sql/sql_connect.cc:1354#24 0x00007fc63c9f21dd in handle_one_connection (arg=arg@entry=0x7fc63e5c05d8) at /data/src/10.2/sql/sql_connect.cc:1260#25 0x00007fc63cc614a1 in pfs_spawn_thread (arg=0x7fc63e576518) at /data/src/10.2/storage/perfschema/pfs.cc:1862#26 0x00007fc63c006064 in start_thread (arg=0x7fc634e57700) at pthread_create.c:309#27 0x00007fc63ac7962d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111