. Thread 2 (Thread 3141): #0 0x00007f78cf932b8d in read () from /lib/libpthread.so.0 No symbol table info available. #1 0x00007f78ceeffa5b in g_source_attach () from /lib/libglib-2.0.so.0 No symbol table info available. #2 0x0000000001544c10 in ?? () No symbol table info available. #3 0x00007f78cf92ec70 in ?? () from /lib/libpthread.so.0 No symbol table info available. #4 0x0000000000000001 in ?? () No symbol table info available. #5 0x00007f78cf19d788 in ?? () from /lib/libglib-2.0.so.0 No symbol table info available. #6 0x0000000000000001 in ?? () No symbol table info available. #7 0x0000000000000003 in ?? () No symbol table info available. #8 0x00007f78cef27ee4 in g_thread_pool_set_sort_function () from /lib/libglib-2.0.so.0 No symbol table info available. #9 0x00007f78c38539d0 in ?? () No symbol table info available. #10 0x00007f78d0c2f040 in ?? () from /lib64/ld-linux-x86-64.so.2 No symbol table info available. #11 0x00007f78cf92b971 in start_thread () from /lib/libpthread.so.0 No symbol table info available. #12 0x00007f78cec2092d in clone () from /lib/libc.so.6 No symbol table info available. #13 0x0000000000000000 in ?? () No symbol table info available. . Thread 1 (Thread 1870): #0 0x00007f78cfe7617e in ?? () from /usr/lib/libgtk-x11-2.0.so.0 No symbol table info available. #1 0x00007f78cfe7ca3a in ?? () from /usr/lib/libgtk-x11-2.0.so.0 No symbol table info available. #2 0x0000000001452fd0 in ?? () No symbol table info available. #3 0x0000000000000000 in ?? () No symbol table info available.