090124 3:35:15 [Note] /usr/local/mysql-6.0.9/libexec/mysqld: ready for connections. Version: '6.0.9-alpha' socket: '/tmp/mysql.sock' port: 3306 Source distribution [Falcon] Error: assertion (transaction->state != Initializing) failed at line 807 in file Transaction.cpp 090124 4:34:24 - mysqld got signal 6 ; 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=8384512 read_buffer_size=131072 max_used_connections=64 max_threads=3000 thread_count=64 connection_count=64 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 615992 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. thd: 0x2aad38165700 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 = 0x5251a100 thread_stack 0x31000 /usr/local/mysql-6.0.9/libexec/mysqld(my_print_stacktrace+0x29) [0xa389f9] /usr/local/mysql-6.0.9/libexec/mysqld(handle_segfault+0x339) [0x616819] /lib64/libpthread.so.0 [0x37a420de70] /lib64/libpthread.so.0(raise+0x2d) [0x37a420dd4d] /usr/local/mysql-6.0.9/libexec/mysqld(Error::error(char const*, ...)+0xef) [0x84639f] /usr/local/mysql-6.0.9/libexec/mysqld(Transaction::commitNoUpdates()+0x164) [0x817724] /usr/local/mysql-6.0.9/libexec/mysqld(Transaction::commit()+0x472) [0x817cd2] /usr/local/mysql-6.0.9/libexec/mysqld(Connection::commit()+0x56) [0x82e1e6] /usr/local/mysql-6.0.9/libexec/mysqld(StorageConnection::commit()+0x52) [0x7f7792] /usr/local/mysql-6.0.9/libexec/mysqld(StorageInterface::external_lock(THD*, int)+0x1f5) [0x7f3765] /usr/local/mysql-6.0.9/libexec/mysqld(handler::ha_external_lock(THD*, int)+0x1a) [0x71290a] /usr/local/mysql-6.0.9/libexec/mysqld(mysql_unlock_tables(THD*, st_mysql_lock*)+0x64) [0x610b34] /usr/local/mysql-6.0.9/libexec/mysqld(select_send::send_eof()+0x59) [0x6029d9] /usr/local/mysql-6.0.9/libexec/mysqld [0x68b1c6] /usr/local/mysql-6.0.9/libexec/mysqld(JOIN::exec()+0x901) [0x6a12f1] /usr/local/mysql-6.0.9/libexec/mysqld(mysql_select(THD*, Item***, TABLE_LIST*, unsigned int, List&, Item*, unsigned int, s t_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*)+0x1b6) [0x6a2ec6 ] /usr/local/mysql-6.0.9/libexec/mysqld(handle_select(THD*, LEX*, select_result*, unsigned long)+0x16f) [0x6a389f] /usr/local/mysql-6.0.9/libexec/mysqld [0x6228a9] /usr/local/mysql-6.0.9/libexec/mysqld(mysql_execute_command(THD*)+0x1a51) [0x627021] /usr/local/mysql-6.0.9/libexec/mysqld(Prepared_statement::execute(String*, bool)+0x3ac) [0x6af2bc] /usr/local/mysql-6.0.9/libexec/mysqld(Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*)+0x5f) [0x6 b1b1f] /usr/local/mysql-6.0.9/libexec/mysqld(mysql_stmt_execute(THD*, char*, unsigned int)+0x1bb) [0x6b211b] /usr/local/mysql-6.0.9/libexec/mysqld(dispatch_command(enum_server_command, THD*, char*, unsigned int)+0xd4c) [0x62bf5c] /usr/local/mysql-6.0.9/libexec/mysqld(do_command(THD*)+0xc2) [0x62c5d2] /usr/local/mysql-6.0.9/libexec/mysqld(handle_one_connection+0xe6) [0x61f7c6] /lib64/libpthread.so.0 [0x37a42062f7] /lib64/libc.so.6(clone+0x6d) [0x37a3ad1e3d] Trying to get some variables. Some pointers may be invalid and cause the dump to abort... thd->query at 0x252dd620 = SELECT name FROM sbtest WHERE id = ? thd->thread_id=386 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.