backtrace:

warning: core file may not match specified executable file.
[New LWP 15879]
[New LWP 15881]
[New LWP 15945]
[New LWP 15880]
[New LWP 15890]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `/usr/sbin/Thunar'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x000055972808d050 in ?? ()
[Current thread is 1 (Thread 0x7f6552ca0000 (LWP 15879))]
(gdb) bt
#0  0x000055972808d050 in  ()
#1  0x00005597280cb378 in  ()
#2  0x00007f6555c498d1 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6555c4b5e9 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f6555c4b62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6555df093e in g_application_run () at /usr/lib/libgio-2.0.so.0
#6  0x000055972806f0db in  ()
#7  0x00007f6555a1b223 in __libc_start_main () at /usr/lib/libc.so.6
#8  0x000055972806f1fe in  ()
(gdb)