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This GDB was configured as "i386-asplinux-linux-gnu"...Using host libthread_db library "/lib/tls/libthread_db.so.1".

(gdb) run
Starting program: /opt/mysql-gui-tools-5.0/mysql-query-browser-bin
Reading symbols from shared object read from target memory...done.
Loaded system supplied DSO at 0xb7f30000
[Thread debugging using libthread_db enabled]
[New Thread -1224431936 (LWP 10373)]

(mysql-query-browser-bin:10373): Gtk-WARNING **: Unable to locate theme engine in module_path: "bluecurve",
[New Thread -1227871312 (LWP 10376)]
[Thread -1227871312 (LWP 10376) exited]
[New Thread -1227871312 (LWP 10377)]
[New Thread -1238963280 (LWP 10378)]
[Thread -1238963280 (LWP 10378) exited]
[New Thread -1250952272 (LWP 10379)]
[Thread -1250952272 (LWP 10379) exited]
[New Thread -1250952272 (LWP 10380)]
[Thread -1250952272 (LWP 10380) exited]
[New Thread -1238963280 (LWP 10381)]
[Thread -1238963280 (LWP 10381) exited]
[New Thread -1238963280 (LWP 10382)]
[Thread -1238963280 (LWP 10382) exited]
[New Thread -1238963280 (LWP 10383)]
[Thread -1238963280 (LWP 10383) exited]
[New Thread -1238963280 (LWP 10384)]
*** glibc detected *** double free or corruption (!prev): 0xb5703800 ***

Program received signal SIGABRT, Aborted.
[Switching to Thread -1238963280 (LWP 10384)]
0xb7f30402 in __kernel_vsyscall ()
(gdb) bt
#0  0xb7f30402 in __kernel_vsyscall ()
#1  0xb719e2b9 in raise () from /lib/tls/libc.so.6
#2  0xb719fd27 in abort () from /lib/tls/libc.so.6
#3  0xb71d166e in __libc_message () from /lib/tls/libc.so.6
#4  0xb71da9e7 in malloc_printerr () from /lib/tls/libc.so.6
#5  0xb71d954d in _int_free () from /lib/tls/libc.so.6
#6  0xb71dab0b in free () from /lib/tls/libc.so.6
#7  0xb73cfeec in g_free () from /opt/mysql-gui-tools-5.0/lib/libglib-2.0.so.0
#8  0x0819e1d3 in G_string::~G_string ()
#9  0x08196077 in s_get_table_charset ()
#10 0x08198dae in s_query_get_query_tables_columns ()
#11 0x0819c997 in Query::analyze ()
#12 0x0819d5ca in s_query_analyze ()
#13 0x0819d62a in query_analyze ()
#14 0x0818f298 in myx_query_execute ()
#15 0x08079613 in MQQueryDispatcher::QueryRequest::execute (this=0xa27cf20,
    mysql=0xa0efed0) at MQQueryDispatcher.cc:74
#16 0x0807a718 in MQQueryDispatcher::normal_thread (this=0xa2add10, req=0xa27cf20)
    at MQQueryDispatcher.cc:332
#17 0x0807c817 in sigc::internal::slot_call0<sigc::bind_functor<-1, sigc::bound_mem_functor1<void, MQQueryDispatcher, MQQueryDispatcher::Request*>, MQQueryDispatcher::Request*, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, void>::call_it (
    rep=0xa0f1710) at mem_fun.h:1851
#18 0xb7713f4c in Glib::Mutex::unlock ()
   from /opt/mysql-gui-tools-5.0/lib/libglibmm-2.4.so.1
#19 0xb73e45a2 in g_static_private_free ()
   from /opt/mysql-gui-tools-5.0/lib/libglib-2.0.so.0
#20 0xb7f10be4 in start_thread () from /lib/tls/libpthread.so.0
#21 0xb7235f3e in clone () from /lib/tls/libc.so.6