SELECT ST_Buffer(ST_PolygonFromText('POLYGON((3 5, 2 4, 2 5, 3 5))'), -100);

sql/gcalc_slicescan.cc:1221: int Gcalc_scan_iterator::arrange_event(int, int): Assertion `!cur_p->event' failed.

150128  1:17:03 [ERROR] mysqld got signal 6 ;

#6  0x00007f25692dc311 in *__GI___assert_fail (assertion=0xe4c408 "((result[0]) & 0x7FFFFFFF) < 1000000000", file=<optimized out>, line=317, function=0xe4cec0 "void do_add(Gcalc_internal_coord*, int, const Gcalc_internal_coord*, const Gcalc_internal_coord*)") at assert.c:81

#7  0x00000000009605e1 in do_add (result=0x7f25408a8168, result_len=2, a=0x7f25408b3e18, b=0x7f25408b3dc8) at 5.5/sql/gcalc_slicescan.cc:317

#8  0x0000000000960bec in gcalc_sub_coord (result=0x7f25408a8168, result_len=2, a=0x7f25408b3e18, b=0x7f25408b3dc8) at 5.5/sql/gcalc_slicescan.cc:497

#9  0x0000000000964c17 in gcalc_sub_coord1 (result=0x7f25408a8168, a=0x7f25408b3e18, b=0x7f25408b3dc8) at 5.5/sql/gcalc_slicescan.cc:522

#10 0x0000000000964c7b in calc_dx_dy (p=0x7f25408a8158) at 5.5/sql/gcalc_slicescan.cc:1076

#11 0x0000000000962e40 in Gcalc_scan_iterator::insert_top_node (this=0x7f256b49df40) at 5.5/sql/gcalc_slicescan.cc:1447

#12 0x0000000000962a74 in Gcalc_scan_iterator::step (this=0x7f256b49df40) at 5.5/sql/gcalc_slicescan.cc:1335

#13 0x000000000096864f in Gcalc_operation_reducer::count_all (this=0x7f254084a730, hp=0x7f254084a618) at 5.5/sql/gcalc_tools.cc:1216

#14 0x000000000086324e in Item_func_buffer::val_str (this=0x7f254084a558, str_value=0x7f256b49e230) at 5.5/sql/item_geofunc.cc:1311

#15 0x0000000000806aef in Item::send (this=0x7f254084a558, protocol=0x7f2550053628, buffer=0x7f256b49e230) at 5.5/sql/item.cc:6474

#16 0x000000000059ae46 in Protocol::send_result_set_row (this=0x7f2550053628, row_items=0x7f2550056b78) at 5.5/sql/protocol.cc:903

#17 0x00000000005fd95c in select_send::send_data (this=0x7f254084a8d0, items=...) at 5.5/sql/sql_class.cc:2370

#18 0x000000000066972a in JOIN::exec (this=0x7f254084a8f0) at 5.5/sql/sql_select.cc:2281

#19 0x000000000066c39d in mysql_select (thd=0x7f2550053060, rref_pointer_array=0x7f2550056cd0, tables=0x0, wild_num=0, fields=..., conds=0x0, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2147748608, result=0x7f254084a8d0, unit=0x7f2550056380, select_lex=0x7f2550056a60) at 5.5/sql/sql_select.cc:3094

#20 0x0000000000662e6d in handle_select (thd=0x7f2550053060, lex=0x7f25500562d0, result=0x7f254084a8d0, setup_tables_done_option=0) at 5.5/sql/sql_select.cc:319

#21 0x000000000063c0ac in execute_sqlcom_select (thd=0x7f2550053060, all_tables=0x0) at 5.5/sql/sql_parse.cc:4689

#22 0x000000000063528e in mysql_execute_command (thd=0x7f2550053060) at 5.5/sql/sql_parse.cc:2234

#23 0x000000000063eb92 in mysql_parse (thd=0x7f2550053060, rawbuf=0x7f254084a078 "SELECT ST_Buffer(ST_PolygonFromText('POLYGON((3 5, 2 4, 2 5, 3 5))'), -100)", length=75, parser_state=0x7f256b49f670) at 5.5/sql/sql_parse.cc:5909

#24 0x00000000006327d5 in dispatch_command (command=COM_QUERY, thd=0x7f2550053060, packet=0x7f255010b061 "", packet_length=75) at 5.5/sql/sql_parse.cc:1079

#25 0x0000000000631961 in do_command (thd=0x7f2550053060) at 5.5/sql/sql_parse.cc:793

#26 0x0000000000733fee in do_handle_one_connection (thd_arg=0x7f2550053060) at 5.5/sql/sql_connect.cc:1266

#27 0x0000000000733aad in handle_one_connection (arg=0x7f2550053060) at 5.5/sql/sql_connect.cc:1181

#28 0x00007f256b0d7b50 in start_thread (arg=<optimized out>) at pthread_create.c:304

#29 0x00007f256938d70d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112