(gdb) where
#0 0x00000037f4e8ca0a in g_mutex_get_impl (mutex=0x0) at gthread-posix.c:120
#1 0x00000037f4e8cd69 in g_mutex_lock (mutex=<optimized out>) at gthread-posix.c:209
#2 0x00007ffff7930005 in vips_error_buffer () from /lib64/libvips.so.37
#3 0x00007ffff7930359 in vips_error_exit () from /lib64/libvips.so.37
#4 0x000000000056a274 in main (argc=1, argv=0x7fffffffe038) at /home/hub/source/PhotoFlow/src/main.cc:58
The stack trace: