Type:
Priority:
Resolution:
Fixed
Affects Version/s:
None
Fix Version/s:
None
Component/s:
None
Environment:
Kubuntu 12.10 x64
I am getting a crash when trying to use prepared statements. I'm connecting to MySQL 5.5 via sockets. I'm using version 1.0.0 of the C library. The application does not crash when using the MySQL 5.1 or 5.5 client libraries.
Back trace:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffeeeff700 (LWP 28598)]
_db_enter_ (_func_=_func_@entry=0x7ffff01f5360 "my_malloc", _file_=_file_@entry=0x7ffff01f5330 "/tmp/mariadb-native-client/libmysql/my_malloc.c", _line_=_line_@entry=31, _sfunc_=_sfunc_@entry=0x7fffeeefe708,
_sfile_=_sfile_@entry=0x7fffeeefe710, _slevel_=_slevel_@entry=0x7fffeeefe704, _sframep_=_sframep_@entry=0x7fffeeefe718) at /tmp/mariadb-native-client/libmysql/dbug.c:712
712 /tmp/mariadb-native-client/libmysql/dbug.c: No such file or directory.
(gdb) bt
#0 _db_enter_ (_func_=_func_@entry=0x7ffff01f5360 "my_malloc", _file_=_file_@entry=0x7ffff01f5330 "/tmp/mariadb-native-client/libmysql/my_malloc.c", _line_=_line_@entry=31, _sfunc_=_sfunc_@entry=0x7fffeeefe708,
_sfile_=_sfile_@entry=0x7fffeeefe710, _slevel_=_slevel_@entry=0x7fffeeefe704, _sframep_=_sframep_@entry=0x7fffeeefe718) at /tmp/mariadb-native-client/libmysql/dbug.c:712
#1 0x00007ffff01e4543 in my_malloc (Size=Size@entry=864, MyFlags=MyFlags@entry=48) at /tmp/mariadb-native-client/libmysql/my_malloc.c:31
#2 0x00007ffff01ec1d8 in mysql_stmt_init (mysql=0x555555941618) at /tmp/mariadb-native-client/libmysql/my_stmt.c:1029
#3 0x00007ffff040a11d in MySQL_Execute (sql_conn_num=0, stmt=0x7fffeeefe9d0, request=0x0, query_type=1, error=0x7fffeeefe890 "[", errlen=255) at monetra_mysql.c:599
#4 0x0000555555633750 in M_SQL_Execute (prepared_stmt_ptr=0x7fffeeefe9d0, stmt=0x0, tran_type=1, error=0x0, errlen=0) at sql.c:805
#5 0x000055555561f540 in M_Recurring_init () at recurring/recurring_manage.c:1190
#6 0x00005555555a443e in cron_loop (arg=0x0) at cron.c:1515
#7 0x000055555566fc13 in M_thread_func (arg=0x555555a41d68) at thread/thread.c:531
#8 0x00007ffff7377e9a in start_thread (arg=0x7fffeeeff700) at pthread_create.c:308
#9 0x00007ffff6c85cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()
When trying to build the client with debug symbols I'm running into another issue:
[ 42%] Building C object libmysql/CMakeFiles/libmariadb.dir/my_stmt.c.o
cd /tmp/mariadb-native-client/libmysql && /usr/bin/gcc -Dlibmariadb_EXPORTS -DHAVE_OPENSSL -g -DSAFEMALLOC -DSAFE_MUTEX -fPIC -I/tmp/mariadb-native-client/include -I/tmp/mariadb-native-client/libmysql -I/usr/local/ssl/include -D ENABLED_LOCAL_INFILE -D HAVE_COMPRESS -D THREAD -o CMakeFiles/libmariadb.dir/my_stmt.c.o -c /tmp/mariadb-native-client/libmysql/my_stmt.c
/tmp/mariadb-native-client/libmysql/my_stmt.c: In function ‘mysql_stmt_execute_generate_request’:
/tmp/mariadb-native-client/libmysql/my_stmt.c:640:3: error: ‘ALLOW_ZERO_PTR’ undeclared (first use in this function)
/tmp/mariadb-native-client/libmysql/my_stmt.c:640:3: note: each undeclared identifier is reported only once for each function it appears in
make[2]: *** [libmysql/CMakeFiles/libmariadb.dir/my_stmt.c.o] Error 1
make[2]: Leaving directory `/tmp/mariadb-native-client'
make[1]: *** [libmysql/CMakeFiles/libmariadb.dir/all] Error 2
make[1]: Leaving directory `/tmp/mariadb-native-client'
make: *** [all] Error 2
Here is my build line:
cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mariadb -DOPENSSL_INCLUDE_DIR=/usr/local/ssl/include -DOPENSSL_CRYPTO_LIBRARY=/usr/local/ssl/lib/libcrypto.so -DOPENSSL_SSL_LIBRARY=/usr/local/ssl/lib/libssl.so -DCMAKE_BUILD_TYPE=Debug . && make VERBOSE=1
Since the debug build is failing when trying to compile my_stmt.c I think these two issues are related.
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Bug
Major
seems to be a typo in my_stmt.c:
libmysql/my_stmt.c:640: my_free((gptr)start, MYF(ALLOW_ZERO_PTR));
should be:
libmysql/my_stmt.c:640: my_free((gptr)start, MYF(MY_ALLOW_ZERO_PTR));
to use MY_ALLOW_ZERO_PTR constant from include/my_sys.h