Roel Van de Paar added a comment - 2022-08-26 10:56 An additional slightly different stack when varying the testcase to include a partition INSTALL SONAME 'ha_rocksdb' ; CREATE TABLE t (a INT KEY ,b TEXT) ENGINE=RocksDB PARTITION BY KEY (a) PARTITIONS 1; Leads to: 10.10.0 7a41e4fbc62c5e917d9cb4dc045e21c983d4e73f (Optimized) Core was generated by `/test/MDEV-16329_bb-10.10-MDEV-16329_MD240822-mariadb-10.10.0-linux-x86_64-opt/'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x0000152ea645abf0 in myrocks::ha_rocksdb::check_keyread_allowed ( this=this@entry=0x152e20269110, inx=inx@entry=0, part=0, all_parts=<optimized out>) at /test/bb-10.10-MDEV-16329_opt/storage/rocksdb/ha_rocksdb.cc:7931 7931 res = dummy1.setup(nullptr, key_info->key_part[part].field, inx, part, [Current thread is 1 (Thread 0x152ea69a9700 (LWP 1944452))] (gdb) bt #0 0x0000152ea645abf0 in myrocks::ha_rocksdb::check_keyread_allowed (this=this@entry=0x152e20269110, inx=inx@entry=0, part=0, all_parts=<optimized out>) at /test/bb-10.10-MDEV-16329_opt/storage/rocksdb/ha_rocksdb.cc:7931 #1 0x0000152ea645add8 in myrocks::ha_rocksdb::index_flags (this=0x152e20269110, inx=0, part=<optimized out>, all_parts=<optimized out>) at /test/bb-10.10-MDEV-16329_opt/storage/rocksdb/ha_rocksdb.cc:8286 #2 0x00005617fd9508b6 in ha_partition::index_flags (this=<optimized out>, inx=<optimized out>, part=<optimized out>, all_parts=<optimized out>) at /test/preview-10.10-ddl_dbg/sql/ha_partition.h:1307 #3 0x00005617fd4ce0a1 in TABLE_SHARE::init_from_binary_frm_image (this=this@entry=0x152ea69a4db0, thd=thd@entry=0x152e20000db8, write=<optimized out>, frm_image=<optimized out>, frm_length=<optimized out>, par_image=par_image@entry=0x0, par_length=0) at /test/preview-10.10-ddl_dbg/sql/table.cc:3080 #4 0x00005617fd6952b6 in ha_create_table (thd=thd@entry=0x152e20000db8, path=<optimized out>, db=0x152e20014598 "test", table_name=0x152e20013e78 "t", create_info=create_info@entry=0x152ea69a6230, frm=frm@entry=0x152ea69a5c60, skip_frm_file=false) at /test/preview-10.10-ddl_dbg/sql/handler.cc:5894 #5 0x00005617fd47ea05 in create_table_impl (thd=thd@entry=0x152e20000db8, orig_db=@0x152e20013eb0: {str = 0x152e20014598 "test", length = 4}, orig_table_name=@0x152e20013ec0: {str = 0x152e20013e78 "t", length = 1}, db=@0x152e20013eb0: {str = 0x152e20014598 "test", length = 4}, table_name=@0x152e20013ec0: {str = 0x152e20013e78 "t", length = 1}, path=@0x152ea69a5c50: {str = 0x152ea69a5c70 "./test/t", length = 8}, options=<optimized out>, create_info=0x152ea69a6230, alter_info=0x152ea69a6050, create_table_mode=0, is_trans=0x152ea69a5f50, key_info=0x152ea69a5c48, key_count=0x152ea69a5c44, frm=0x152ea69a5c60) at /test/preview-10.10-ddl_dbg/sql/sql_table.cc:4929 #6 0x00005617fd47ee4d in mysql_create_table_no_lock (thd=thd@entry=0x152e20000db8, orig_db=orig_db@entry=0x152e20013eb0, orig_table_name=orig_table_name@entry=0x152e20013ec0, db=0x152e20013eb0, table_name=0x152e20013ec0, create_info=create_info@entry=0x152ea69a6230, alter_info=0x152ea69a6050, is_trans=0x152ea69a5f50, create_table_mode=0, table_list=0x152e20013eb0, frm=0x152ea69a5c60) at /test/preview-10.10-ddl_dbg/sql/sql_table.cc:5056 #7 0x00005617fd4817b2 in mysql_create_table (alter_info=0x152ea69a6050, create_info=0x152ea69a6230, create_table=<optimized out>, thd=0x152e20000db8) at /test/preview-10.10-ddl_dbg/sql/sql_table.cc:5183 #8 Sql_cmd_create_table_like::execute (this=<optimized out>, thd=0x152e20000db8) at /test/preview-10.10-ddl_dbg/sql/sql_table.cc:12935 #9 0x00005617fd3aaa4d in mysql_execute_command (thd=thd@entry=0x152e20000db8, is_called_from_prepared_stmt=is_called_from_prepared_stmt@entry=false) at /test/preview-10.10-ddl_dbg/sql/sql_parse.cc:5996 #10 0x00005617fd3930cd in mysql_parse (thd=thd@entry=0x152e20000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x152ea69a8470) at /test/preview-10.10-ddl_dbg/sql/sql_parse.cc:8038 #11 0x00005617fd3a06b0 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x152e20000db8, packet=packet@entry=0x152e2000b7f9 "CREATE TABLE t (a INT KEY,b TEXT) ENGINE=RocksDB PARTITION BY KEY(a) PARTITIONS 1", packet_length=packet_length@entry=81, blocking=blocking@entry=true) at /test/preview-10.10-ddl_dbg/sql/sql_class.h:1365 #12 0x00005617fd3a2dc1 in do_command (thd=0x152e20000db8, blocking=blocking@entry=true) at /test/preview-10.10-ddl_dbg/sql/sql_parse.cc:1407 #13 0x00005617fd5057ba in do_handle_one_connection (connect=<optimized out>, connect@entry=0x5617ff6eb1f8, put_in_cache=put_in_cache@entry=true) at /test/preview-10.10-ddl_dbg/sql/sql_connect.cc:1418 #14 0x00005617fd505cc3 in handle_one_connection (arg=0x5617ff6eb1f8) at /test/preview-10.10-ddl_dbg/sql/sql_connect.cc:1312 #15 0x0000152ec5a5c609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #16 0x0000152ec5648133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Roel Van de Paar added a comment - 2022-08-26 10:58 UniqueID's/stacks seen so far SIGSEGV|myrocks::ha_rocksdb::check_keyread_allowed|myrocks::ha_rocksdb::index_flags|TABLE_SHARE::init_from_binary_frm_image|ha_create_table SIGSEGV|myrocks::ha_rocksdb::check_keyread_allowed|myrocks::ha_rocksdb::index_flags|ha_partition::index_flags|TABLE_SHARE::init_from_binary_frm_image

Roel Van de Paar added a comment - 2022-08-26 23:57 - edited Given the oddity of the errors, I decided to rebuild the branch & retest. The rebuild branch did not show the same issues, so I discarded the runs. It looks like the 4 builds (2 branches, opt+dbg) collided (same temporary dir use during untar) with the builds of one branch being affected. Apologies for the false alarm.