#0  0x00007f934721a811 in g_type_check_instance_is_a (type_instance=type_instance@entry=0x7f932c0c20d0, iface_type=iface_type@entry=94275285265120) at ../../../../gobject/gtype.c:4013
No locals.
#1  0x00007f934991ce85 in get_preview_thumbnail (size=256, uri=0x55be2e7f4b90 "mtp://%5Busb%3A001,030%5D/Internal%20shared%20storage/DCIM/Camera/IMG_20161004_114104.jpg") at gnome-desktop-thumbnail.c:1085
        __inst = 0x7f932c0c20d0
        __t = 94275285265120
        __r = <optimized out>
        pixbuf = <optimized out>
        file = <optimized out>
        file_info = <optimized out>
        input_stream = 0x0
        object = 0x7f932c0c20d0
#2  gnome_desktop_thumbnail_factory_generate_thumbnail (factory=0x55be2d1cff40, uri=0x55be2e7f4b90 "mtp://%5Busb%3A001,030%5D/Internal%20shared%20storage/DCIM/Camera/IMG_20161004_114104.jpg", mime_type=0x55be2e7f43b0 "image/jpeg") at gnome-desktop-thumbnail.c:1145
        pixbuf = 0x0
        script = <optimized out>
        size = 256
        exit_status = 0
        tmpname = 0x20 <error: Cannot access memory at address 0x20>
        __func__ = "gnome_desktop_thumbnail_factory_generate_thumbnail"
#3  0x000055be2c300a90 in thumbnail_thread_func (task=<optimized out>, source_object=<optimized out>, task_data=<optimized out>, cancellable=<optimized out>) at nautilus-thumbnails.c:567
        info = 0x55be2e7f4c50
        pixbuf = <optimized out>
        current_orig_mtime = 1475599266
        current_time = 1499294408
        node = <optimized out>
        __func__ = "thumbnail_thread_func"
#4  0x00007f93474c2b2d in g_task_thread_pool_thread (thread_data=0x55be2e48ab80, pool_data=<optimized out>) at ../../../../gio/gtask.c:1328
        task = 0x55be2e48ab80
#5  0x00007f9346f4407e in g_thread_pool_thread_proxy (data=<optimized out>) at ../../../../glib/gthreadpool.c:307
        pool = 0x55be2ce3da80
#6  0x00007f9346f43685 in g_thread_proxy (data=0x55be2e8581e0) at ../../../../glib/gthread.c:784
        thread = 0x55be2e8581e0
#7  0x00007f93469b16da in start_thread (arg=0x7f92f41c1700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f92f41c1700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140269137434368, 7072120149651535672, 140735317156286, 140735317156287, 140269137435072, 140269137434368, -7133455560361593032, -7132651808934676680}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007f93466eb17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105
No locals.