# mysqld options required:  --sql_mode=

CREATE TEMPORARY TABLE t1 (i INT) ENGINE=RocksDB;

CREATE UNIQUE INDEX i ON t1 (i);

ALTER TABLE t1 ADD COLUMN e ENUM ('a', 'b') FIRST;

DROP TABLE t1;

CREATE TEMPORARY TABLE temp_ignore (c1 INT) ENGINE=RocksDB;

CREATE TEMPORARY TABLE t1 (KEYc INT, c1 CHAR(100), c2 CHAR(100), PRIMARY KEY(KEYc)) ENGINE=RocksDB;

SET GLOBAL innodb_defragment_stats_accuracy=1;

CREATE TEMPORARY TABLE tmp (c1 CHAR(100));

DROP TABLE t1;

CREATE TEMPORARY TABLE t1 (c1 INT NOT NULL, c2 INT NOT NULL, c3 CHAR(255) NOT NULL, c4 TEXT (6000) NOT NULL, c5 BLOB (6000) NOT NULL, c6 VARCHAR(2000) NOT NULL, c7 VARCHAR(2000) NOT NULL, c8 DATETIME, c9 DECIMAL(6,3), PRIMARY KEY(c1), INDEX (c3,c4 (50),c5 (50)), INDEX (c2)) ENGINE=RocksDB;

INSERT INTO t1 VALUES (3792709,107,'bx9gGjR4CiwHK9V9lFmJ','wAMO93uhIrkQzodNeR8T7QxZMVzKcsQeECbyIkXAUZMDTQI0ZAgyjYD7VITQDK4W2LnSh3ZepFQiwNUh13piM6L0AcuaSfRpLEomxcjx9v1Mqfn5hL6RLT5OaNZDNs6I9wK24bvcmP21udCh5WA7I4RzPHFBOWe1OWjyTIvVOTr5HZx1gToLfcDKVQuFtUcTjCZvwMeHGJtbwd3ExPnXeRtA9nyBMLzsFnfDnp67Djrr4aH','FbPyKA2resmBzjRGP','H4boLxbibNiRR3Cc6aozLNXd8PwXAb9WBwS8D3hT8wqY7lPRDEVVfW5L4QD3JsgEq2CO4LGpXq3pXYttIn5XBKXdwYEWzsJcsokqyrFHvMuOQdGhp4meIrQ6','v','Hv',6);

INSERT INTO t1 VALUES (1941919362,-89,'o25lFD6yZcK','SxXR20TCKRZw8CytWCR90UBGgxCTFlSX3AO5','ZEOnEBYqDhkKwtYV0LvHIn0xMlJ7e4peXzLT1EFX3MB','OA','9','Z',3);

INSERT INTO t1 VALUES (1444293002,648016786,'HbY4xbRx9wLRvDGE4gr5pBKusm','Ku0bNy4Gaw4fjzfvEYKnZbyxsfsUX0ytFgdEVb2d0RJoM1qnI6aLhfmJEVf8qw4olJcT30IF8Yn053hwLaqpaGhPajxVwnDfb6SFtGEvnnkcrx6f4uNn8keoohRauRZC','1','1AxmkbgvnEbxlNTlXMh','j','H',3);

INSERT INTO t1 VALUES (-1448915294450022741,-187701819,'RSDp3D9UCeg65YN','KMV8x9SdMnQRlCEIo','aNLmbAmmnLelbKA0goXWais','GTcUltWVAFP','t','m',4);

INSERT INTO t1 VALUES (10437286018070182185,30439,'j0HIPFTkthYOm0KU3Qvxhpo4js6ZZPbTC6887KD','isQ1rH5omSjfzTbpGIjsSGgF3b1Rh1toIwfd5yOfH6xyfMoXknBanXvt3c1DEBciU9AoPRcgLcgZbuKqlQvHaM4EKkucH0XlrCJxiXyCiTZEJQY4TvdhgolYyu','qGJlDODgup0S','9W5PnxVs6GVejucJgrOEuGWhgWYsSzt','G','Lv',3);

INSERT INTO t1 VALUES (7118530,4126170,'yh','WODRNFoqXGb30szrmv2sdYIFQAOpZidHdvgT4nKmKSPim8d8XQyVdgIkU1rkjpmxWoLwdzxOmRGGIFPYHjjXUHkSUY4jNZeiVtsHUteuyvXkBQkurlB7C3tiXKdLT97ftxE5J2pypX26Y50z1DSLsqsHxIwgXwNfQdTKFaWIxMDmxG8hfGAkXwFXjWZG54CXnU5r','SivJexqd0Ao','ETMOtmlawEMLYI9VR4GpbUctDlLFVBHBvYQVBUwR041SFqvhqLawxoN9ERFzYDNA618KcWzjnz1Rta9fjEEE0dhTrs9XKSmxYrj0xgbuBTOJq231HqmcxOBxrQpLbploSHXcRfUIcyelak75gmQuaRA','ME','CJ',14);

INSERT INTO t1 VALUES (-108,37,'fV','Jz8VHylg','RRUdtmZQ1sElrfO7phsakzy2rBCDmCu3HjkbbOolR','PDAYF1zW7KqFFYaZZLsEKKC','j','A',5);

UPDATE t1 SET c4=REPEAT ("c4", 1024);

Core was generated by `/test/MD180921-mariadb-10.6.5-linux-x86_64-opt/bin/mysqld --no-defaults --max_a'.

Program terminated with signal SIGSEGV, Segmentation fault.

#0  dict_table_find_index_on_id (table=table@entry=0x0, id=id@entry=225)

    at /test/10.6_opt/storage/innobase/dict/dict0dict.cc:1342

[Current thread is 1 (Thread 0x14c07bbfd700 (LWP 356879))]

(gdb) bt

#0  dict_table_find_index_on_id (table=table@entry=0x0, id=id@entry=225) at /test/10.6_opt/storage/innobase/dict/dict0dict.cc:1342

#1  0x0000557e1e3ad507 in dict_stats_process_entry_from_defrag_pool () at /test/10.6_opt/storage/innobase/dict/dict0defrag_bg.cc:193

#2  dict_defrag_process_entries_from_defrag_pool () at /test/10.6_opt/storage/innobase/dict/dict0defrag_bg.cc:212

#3  0x0000557e1e3abcd9 in dict_stats_func () at /test/10.6_opt/storage/innobase/dict/dict0stats_bg.cc:394

#4  0x0000557e1e412289 in tpool::thread_pool_generic::timer_generic::run (this=0x557e21150a80) at /test/10.6_opt/tpool/tpool_generic.cc:313

#5  tpool::thread_pool_generic::timer_generic::execute (arg=0x557e21150a80) at /test/10.6_opt/tpool/tpool_generic.cc:332

#6  0x0000557e1e4132ba in tpool::task::execute (this=0x557e21150ac0) at /test/10.6_opt/tpool/task.cc:37

#7  tpool::task::execute (this=0x557e21150ac0) at /test/10.6_opt/tpool/task.cc:27

#8  0x0000557e1e411d77 in tpool::thread_pool_generic::worker_main (this=0x557e20e106a0, thread_var=0x557e20e20140) at /test/10.6_opt/tpool/tpool_generic.cc:549

#9  0x000014c0b5c12de4 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#10 0x000014c0b5d2d609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#11 0x000014c0b591b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Version: '10.7.0-MariaDB-debug'  socket: '/test/UBASAN_MD060921-mariadb-10.7.0-linux-x86_64-dbg/socket.sock'  port: 28739  MariaDB Server

----

/test/10.7_dbg_san/storage/innobase/dict/dict0defrag_bg.cc:194:44: runtime error: null pointer passed as argument 1, which is declared to never be null

    #0 0x564fd9540592 in dict_stats_process_entry_from_defrag_pool /test/10.7_dbg_san/storage/innobase/dict/dict0defrag_bg.cc:194

    #1 0x564fd9540592 in dict_defrag_process_entries_from_defrag_pool() /test/10.7_dbg_san/storage/innobase/dict/dict0defrag_bg.cc:212

    #2 0x564fd9534aae in dict_stats_func /test/10.7_dbg_san/storage/innobase/dict/dict0stats_bg.cc:394

    #3 0x564fd9802d6b in tpool::thread_pool_generic::timer_generic::run() /test/10.7_dbg_san/tpool/tpool_generic.cc:313

    #4 0x564fd9802d6b in tpool::thread_pool_generic::timer_generic::execute(void*) /test/10.7_dbg_san/tpool/tpool_generic.cc:333

    #5 0x564fd980c9fc in tpool::task::execute() /test/10.7_dbg_san/tpool/task.cc:52

    #6 0x564fd97fffa2 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) /test/10.7_dbg_san/tpool/tpool_generic.cc:550

    #7 0x564fd9802121 in void std::__invoke_impl<void, void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>(std::__invoke_memfun_deref, void (tpool::thread_pool_generic::*&&)(tpool::worker_data*), tpool::thread_pool_generic*&&, tpool::worker_data*&&) /usr/include/c++/9/bits/invoke.h:73

    #8 0x564fd9802121 in std::__invoke_result<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>::type std::__invoke<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>(void (tpool::thread_pool_generic::*&&)(tpool::worker_data*), tpool::thread_pool_generic*&&, tpool::worker_data*&&) /usr/include/c++/9/bits/invoke.h:95

    #9 0x564fd9802121 in void std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> >::_M_invoke<0ul, 1ul, 2ul>(std::_Index_tuple<0ul, 1ul, 2ul>) /usr/include/c++/9/thread:244

    #10 0x564fd9802121 in std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> >::operator()() /usr/include/c++/9/thread:251

    #11 0x564fd9802121 in std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> > >::_M_run() /usr/include/c++/9/thread:195

    #12 0x148d3b658de3  (/usr/lib/x86_64-linux-gnu/libstdc++.so.6+0xd6de3)

    #13 0x148d3b775608 in start_thread /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477

    #14 0x148d3a9eb292 in __clone (/lib/x86_64-linux-gnu/libc.so.6+0x122292)

/test/10.7_dbg_san/storage/innobase/include/dict0dict.ic:211:2: runtime error: member access within null pointer of type 'const struct dict_table_t'

    #0 0x564fd944896e in dict_table_get_first_index /test/10.7_dbg_san/storage/innobase/include/dict0dict.ic:211

    #1 0x564fd944896e in dict_table_find_index_on_id(dict_table_t const*, unsigned long) /test/10.7_dbg_san/storage/innobase/dict/dict0dict.cc:1340

    #2 0x564fd95402c5 in dict_stats_process_entry_from_defrag_pool /test/10.7_dbg_san/storage/innobase/dict/dict0defrag_bg.cc:194

    #3 0x564fd95402c5 in dict_defrag_process_entries_from_defrag_pool() /test/10.7_dbg_san/storage/innobase/dict/dict0defrag_bg.cc:212

    #4 0x564fd9534aae in dict_stats_func /test/10.7_dbg_san/storage/innobase/dict/dict0stats_bg.cc:394

    #5 0x564fd9802d6b in tpool::thread_pool_generic::timer_generic::run() /test/10.7_dbg_san/tpool/tpool_generic.cc:313

    #6 0x564fd9802d6b in tpool::thread_pool_generic::timer_generic::execute(void*) /test/10.7_dbg_san/tpool/tpool_generic.cc:333

    #7 0x564fd980c9fc in tpool::task::execute() /test/10.7_dbg_san/tpool/task.cc:52

    #8 0x564fd97fffa2 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) /test/10.7_dbg_san/tpool/tpool_generic.cc:550

    #9 0x564fd9802121 in void std::__invoke_impl<void, void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>(std::__invoke_memfun_deref, void (tpool::thread_pool_generic::*&&)(tpool::worker_data*), tpool::thread_pool_generic*&&, tpool::worker_data*&&) /usr/include/c++/9/bits/invoke.h:73

    #10 0x564fd9802121 in std::__invoke_result<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>::type std::__invoke<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>(void (tpool::thread_pool_generic::*&&)(tpool::worker_data*), tpool::thread_pool_generic*&&, tpool::worker_data*&&) /usr/include/c++/9/bits/invoke.h:95

    #11 0x564fd9802121 in void std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> >::_M_invoke<0ul, 1ul, 2ul>(std::_Index_tuple<0ul, 1ul, 2ul>) /usr/include/c++/9/thread:244

    #12 0x564fd9802121 in std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> >::operator()() /usr/include/c++/9/thread:251

    #13 0x564fd9802121 in std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> > >::_M_run() /usr/include/c++/9/thread:195

    #14 0x148d3b658de3  (/usr/lib/x86_64-linux-gnu/libstdc++.so.6+0xd6de3)

    #15 0x148d3b775608 in start_thread /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477

    #16 0x148d3a9eb292 in __clone (/lib/x86_64-linux-gnu/libc.so.6+0x122292)

210918 16:03:23 [ERROR] mysqld got signal 11 ;

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: 10.7.0-MariaDB-debug

key_buffer_size=134217728

read_buffer_size=131072

max_used_connections=1

max_threads=153

thread_count=1

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 468081 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x62b0000af288

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 = 0x0 thread_stack 0x100000

/test/UBASAN_MD060921-mariadb-10.7.0-linux-x86_64-dbg/bin/mysqld(+0x7e79790)[0x564fd496d790]

asan_interceptors.o:0(__interceptor_backtrace.part.0)[0x564fd9a33750]

mysys/stacktrace.c:212(my_print_stacktrace)[0x564fd6bc2bcd]

sigaction.c:0(__restore_rt)[0x148d3b7813c0]

include/dict0dict.ic:211(dict_table_find_index_on_id(dict_table_t const*, unsigned long))[0x564fd944891a]

dict/dict0defrag_bg.cc:194(dict_defrag_process_entries_from_defrag_pool())[0x564fd95402c6]

dict/dict0stats_bg.cc:395(dict_stats_func(void*))[0x564fd9534aaf]

tpool/tpool_generic.cc:314(tpool::thread_pool_generic::timer_generic::run())[0x564fd9802d6c]

tpool/task.cc:53(tpool::task::execute())[0x564fd980c9fd]

tpool/tpool_generic.cc:548(tpool::thread_pool_generic::worker_main(tpool::worker_data*))[0x564fd97fffa3]

9/thread:195(std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> > >::_M_run())[0x564fd9802122]

??:0(std::error_code::default_error_condition() const)[0x148d3b658de4]

nptl/pthread_create.c:478(start_thread)[0x148d3b775609]

x86_64/clone.S:97(__GI___clone)[0x148d3a9eb293]

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0x0): (null)

Connection ID (thread ID): 0

Status: NOT_KILLED

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=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off

The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains

information that should help you find out what is causing the crash.

We think the query pointer is invalid, but we will try to print it anyway.

Query:

Writing a core file...

Working directory at /test/UBASAN_MD060921-mariadb-10.7.0-linux-x86_64-dbg/data

Resource Limits:

Limit                     Soft Limit           Hard Limit           Units

Max cpu time              unlimited            unlimited            seconds

Max file size             unlimited            unlimited            bytes

Max data size             unlimited            unlimited            bytes

Max stack size            unlimited            unlimited            bytes

Max core file size        0                    0                    bytes

Max resident set          unlimited            unlimited            bytes

Max processes             unlimited            unlimited            processes

Max open files            1048576              1048576              files

Max locked memory         unlimited            unlimited            bytes

Max address space         unlimited            unlimited            bytes

Max file locks            unlimited            unlimited            locks

Max pending signals       unlimited            unlimited            signals

Max msgqueue size         unlimited            unlimited            bytes

Max nice priority         0                    0

Max realtime priority     0                    0

Max realtime timeout      unlimited            unlimited            us

Core pattern: |/usr/share/apport/apport %p %s %c %d %P %E

----

Thread 11 hit Hardware watchpoint 1: -location defrag_pool._M_impl._M_finish

Old value = (defrag_pool_item_t *) 0x0

New value = (defrag_pool_item_t *) 0x7fe144112cd0

0x00005629fce86f1a in std::vector<defrag_pool_item_t, ut_allocator<defrag_pool_item_t, true> >::_M_realloc_insert<defrag_pool_item_t const&> (

    this=this@entry=0x5629fe1a8000 <defrag_pool>, __position=<optimized out>)

    at /usr/include/c++/11/bits/vector.tcc:504

504	      this->_M_impl._M_end_of_storage = __new_start + __len;

(rr) bt

#0  0x00005629fce86f1a in std::vector<defrag_pool_item_t, ut_allocator<defrag_pool_item_t, true> >::_M_realloc_insert<defrag_pool_item_t const&> (

    this=this@entry=0x5629fe1a8000 <defrag_pool>, __position=<optimized out>)

    at /usr/include/c++/11/bits/vector.tcc:504

#1  0x00005629fce85883 in std::vector<defrag_pool_item_t, ut_allocator<defrag_pool_item_t, true> >::push_back (__x=

      @0x7fe15d25bc80: {table_id = 10, index_id = 23}, 

    this=0x5629fe1a8000 <defrag_pool>)

    at /usr/include/c++/11/bits/stl_iterator.h:1010

#2  dict_stats_defrag_pool_add (index=0x7fe14417b0e0)

    at /mariadb/10.6/storage/innobase/dict/dict0defrag_bg.cc:132

#3  0x00005629fce04352 in btr_defragment_save_defrag_stats_if_needed (

    index=0x7fe14417b0e0)

    at /mariadb/10.6/storage/innobase/btr/btr0defragment.cc:230

#4  0x00005629fcdac5d6 in btr_page_split_and_insert (flags=flags@entry=2, 

    cursor=cursor@entry=0x7fe15d25bf80, offsets=offsets@entry=0x7fe15d25bf70, 

    heap=heap@entry=0x7fe15d25bf68, tuple=tuple@entry=0x7fe144119130, 

    n_ext=n_ext@entry=0, mtr=0x7fe15d25c2d0)

    at /mariadb/10.6/storage/innobase/btr/btr0btr.cc:2771

InnoDB: Failing assertion: table->get_ref_count() == 0

Core was generated by `/test/MD091021-mariadb-10.7.1-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.

Program terminated with signal SIGABRT, Aborted.

#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50

[Current thread is 1 (Thread 0x1525100e1700 (LWP 1625177))]

(gdb) bt

#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50

#1  0x00001525124bd859 in __GI_abort () at abort.c:79

#2  0x0000563bcd532312 in ut_dbg_assertion_failed (expr=expr@entry=0x563bcdbacbc0 "table->get_ref_count() == 0", file=file@entry=0x563bcdbad1c0 "/test/10.7_dbg/storage/innobase/dict/dict0dict.cc", line=line@entry=1823) at /test/10.7_dbg/storage/innobase/ut/ut0dbg.cc:60

#3  0x0000563bcd6040a0 in dict_sys_t::remove (this=0x563bce1ba4c0 <dict_sys>, table=table@entry=0x1524c697ba68, lru=lru@entry=false, keep=keep@entry=false) at /test/10.7_dbg/storage/innobase/dict/dict0dict.cc:1823

#4  0x0000563bcd636928 in trx_t::commit (this=this@entry=0x1524fd755390, deleted=std::vector of length 5, capacity 8 = {{m_file = 125, m_psi = 0x0}, {m_file = 140, m_psi = 0x0}, {m_file = 144, m_psi = 0x0}, {m_file = 146, m_psi = 0x0}, {m_file = 141, m_psi = 0x0}}) at /test/10.7_dbg/storage/innobase/dict/drop.cc:249

#5  0x0000563bcd2faef4 in ha_innobase::delete_table (this=<optimized out>, name=<optimized out>) at /test/10.7_dbg/storage/innobase/handler/ha_innodb.cc:13600

#6  0x0000563bccf4a731 in hton_drop_table (hton=<optimized out>, path=<optimized out>) at /test/10.7_dbg/sql/handler.cc:576

#7  0x0000563bccf53ff8 in ha_delete_table (thd=thd@entry=0x1524c4000db8, hton=hton@entry=0x563bd091f928, path=path@entry=0x1525100dd5d0 "./test/#sql-backup-18c39f-4", db=db@entry=0x1525100df180, alias=alias@entry=0x1525100dd980, generate_warning=generate_warning@entry=false) at /test/10.7_dbg/sql/handler.cc:3100

#8  0x0000563bccd24232 in quick_rm_table (thd=thd@entry=0x1524c4000db8, base=base@entry=0x563bd091f928, db=db@entry=0x1525100df180, table_name=table_name@entry=0x1525100dd980, flags=3, table_path=table_path@entry=0x0) at /test/10.7_dbg/sql/sql_table.cc:1919

#9  0x0000563bccd3c216 in mysql_alter_table (thd=thd@entry=0x1524c4000db8, new_db=new_db@entry=0x1524c4013d70, new_name=new_name@entry=0x1524c4013d80, create_info=create_info@entry=0x1525100dffc0, table_list=<optimized out>, table_list@entry=0x1524c4013d58, alter_info=alter_info@entry=0x1525100dfed0, order_num=<optimized out>, order=<optimized out>, ignore=<optimized out>, if_exists=<optimized out>) at /test/10.7_dbg/sql/sql_table.cc:10616

#10 0x0000563bccc4d381 in mysql_execute_command (thd=thd@entry=0x1524c4000db8, is_called_from_prepared_stmt=is_called_from_prepared_stmt@entry=false) at /test/10.7_dbg/sql/structs.h:568

#11 0x0000563bccc38d6f in mysql_parse (thd=thd@entry=0x1524c4000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x1525100e0400) at /test/10.7_dbg/sql/sql_parse.cc:8028

#12 0x0000563bccc47968 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x1524c4000db8, packet=packet@entry=0x1524c55f1ed9 "", packet_length=packet_length@entry=31, blocking=blocking@entry=true) at /test/10.7_dbg/sql/sql_class.h:1358

#13 0x0000563bccc4ad6e in do_command (thd=0x1524c4000db8, blocking=blocking@entry=true) at /test/10.7_dbg/sql/sql_parse.cc:1402

#14 0x0000563bccdc0e88 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x563bd0f060b8, put_in_cache=put_in_cache@entry=true) at /test/10.7_dbg/sql/sql_connect.cc:1418

#15 0x0000563bccdc148d in handle_one_connection (arg=arg@entry=0x563bd0f060b8) at /test/10.7_dbg/sql/sql_connect.cc:1312

#16 0x0000563bcd22a83e in pfs_spawn_thread (arg=0x563bd0e45d98) at /test/10.7_dbg/storage/perfschema/pfs.cc:2201

#17 0x00001525129cc609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#18 0x00001525125ba293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95