CURRENT_TEST: backup.backup_bml 090309 23:47:40 [Warning] The syntax '--log' is deprecated and will be removed in MySQL 7.0. Please use '--general-log --general-log-file' instead. 090309 23:47:40 [Warning] The syntax '--log-slow-queries' is deprecated and will be removed in MySQL 7.0. Please use '--slow-query-log'/'--slow-query-log-file' instead. InnoDB: The first specified data file .\ibdata1 did not exist: InnoDB: a new database to be created! 090309 16:47:40 InnoDB: Setting file .\ibdata1 size to 10 MB InnoDB: Database physically writes the file full: wait... 090309 16:47:41 InnoDB: Log file .\ib_logfile0 did not exist: new to be created InnoDB: Setting log file .\ib_logfile0 size to 5 MB InnoDB: Database physically writes the file full: wait... 090309 16:47:41 InnoDB: Log file .\ib_logfile1 did not exist: new to be created InnoDB: Setting log file .\ib_logfile1 size to 5 MB InnoDB: Database physically writes the file full: wait... InnoDB: Doublewrite buffer not found: creating new InnoDB: Doublewrite buffer created InnoDB: Creating foreign key constraint system tables InnoDB: Foreign key constraint system tables created 090309 16:47:42 InnoDB: Started; log sequence number 0 0 090309 23:47:42 [Note] Falcon: unable to open system data files. 090309 23:47:42 [Note] Falcon: creating new system data files. 090309 23:47:43 [Note] Event Scheduler: Loaded 0 events 090309 23:47:43 [Note] c:/source/bzr/mysql-6.0-test-backup/sql/debug/mysqld.exe: ready for connections. Version: '6.0.11-alpha-debug-log' socket: '' port: 12500 MySQL-6.0-backup Windows Build 090309 23:47:45 [Note] Backup: Starting backup process 090309 23:47:45 [Note] Backup: Backing up 2 database(s) `bml_test`,`bml_test_db1` 090309 23:47:45 [Note] Backup: Backup completed 090309 23:47:46 [Note] Backup: Starting backup process 090309 23:47:46 [Note] Backup: Backing up 1 database(s) `bml_test` 090309 23:47:46 [Note] Backup: Backup completed 090309 23:47:47 [Note] Restore: Starting restore process 090309 23:47:47 [Note] Restore: Restoring 1 database(s) `bml_test` 090309 23:47:47 [Note] Restore: Restore completed 090309 23:47:47 [Note] Backup: Starting backup process 090309 23:47:47 [Note] Backup: Backing up 1 database(s) `bml_test` 090309 23:47:48 [Note] Backup: Backup completed 090309 23:47:48 [Note] Restore: Starting restore process 090309 23:47:48 [Note] Restore: Restoring 1 database(s) `bml_test` 090309 23:47:48 [Note] Restore: Restore completed 090309 23:47:49 [Note] Restore: Starting restore process 090309 23:47:49 [Note] Restore: Restoring 2 database(s) `bml_test`,`bml_test_db1` 090309 23:47:49 [Note] Restore: Restore completed 090309 23:47:49 [Note] Backup: Starting backup process 090309 23:47:49 [Note] Backup: Backing up 1 database(s) `bml_test` 090309 23:47:49 [Note] Backup: Backup completed 090309 23:47:49 [Note] Restore: Starting restore process 090309 23:47:49 [Note] Restore: Restoring 2 database(s) `bml_test`,`bml_test_db1` 090309 23:47:49 [Note] Restore: Restore completed 090309 23:47:49 [Note] Restore: Starting restore process 090309 23:47:50 [Note] Restore: Restoring 1 database(s) `bml_test` 090309 23:47:50 [Note] Restore: Restore completed 090309 23:47:50 [Note] Restore: Starting restore process 090309 23:47:50 [Note] Restore: Restoring 2 database(s) `bml_test`,`bml_test_db1` 090309 23:47:50 [Note] Restore: Restore completed 090309 23:47:50 [Note] Backup: Starting backup process 090309 23:47:50 [Note] Backup: Backing up 1 database(s) `bml_test` 090309 23:47:50 [Note] Backup: Backup completed 090309 23:47:50 - mysqld got exception 0xc0000005 ; 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. 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. key_buffer_size=1048576 read_buffer_size=131072 max_used_connections=6 max_threads=151 thread_count=6 connection_count=6 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 60054 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. thd: 0x35419c8 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... 017B075C mysqld.exe!strcmp()[strcmp.asm:139] 01555C72 mysqld.exe!InList()[dbug.c:1583] 01555D6B mysqld.exe!_db_keyword_()[dbug.c:1830] 015550B7 mysqld.exe!_db_doprnt_()[dbug.c:1342] 014E9F63 mysqld.exe!alloc_root()[my_alloc.c:223] 013E088B mysqld.exe!open_table_from_share()[table.cc:2009] 0129E9D8 mysqld.exe!open_temporary_table()[sql_base.cc:4695] 013B5E8C mysqld.exe!create_altered_table()[sql_table.cc:5931] 013B8911 mysqld.exe!mysql_alter_table()[sql_table.cc:7102] 013041EC mysqld.exe!mysql_execute_command()[sql_parse.cc:2888] 0130BC3D mysqld.exe!mysql_parse()[sql_parse.cc:5823] 01300F58 mysqld.exe!dispatch_command()[sql_parse.cc:1057] 013007D9 mysqld.exe!do_command()[sql_parse.cc:739] 01421579 mysqld.exe!handle_one_connection()[sql_connect.cc:1146] 0150FC18 mysqld.exe!pthread_start()[my_winthread.c:61] 017C5A63 mysqld.exe!_callthreadstartex()[threadex.c:348] 017C5A04 mysqld.exe!_threadstartex()[threadex.c:331] 75C54911 kernel32.dll!BaseThreadInitThunk() 773CE4B6 ntdll.dll!RtlInitializeExceptionChain() 773CE489 ntdll.dll!RtlInitializeExceptionChain() Trying to get some variables. Some pointers may be invalid and cause the dump to abort... thd->query at 0354BF10=ALTER TABLE t1 ADD INDEX `i` (a) thd->thread_id=6 thd->killed=NOT_KILLED The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains information that should help you find out what is causing the crash. Writing a core file Minidump written to c:\source\bzr\mysql-6.0-test-backup\mysql-test\var\mysqld.1\data\mysqld.dmp