.
Thread 7 (Thread 0x7fd873a98700 (LWP 23604)):
#0  0x00007fd876b8239d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fd872e8329c in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
No symbol table info available.
#2  0x00007fd872e83f03 in libusb_handle_events_timeout_completed () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
No symbol table info available.
#3  0x00007fd872e84000 in libusb_handle_events_completed () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
No symbol table info available.
#4  0x00007fd872e84851 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
No symbol table info available.
#5  0x00007fd872e84929 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
No symbol table info available.
#6  0x00007fd872e84cb4 in libusb_bulk_transfer () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
No symbol table info available.
#7  0x00007fd87309512e in ?? () from /usr/lib/x86_64-linux-gnu/libgphoto2_port/0.10.0/usb1.so
No symbol table info available.
#8  0x00007fd8777e5191 in gp_port_read () from /usr/lib/x86_64-linux-gnu/libgphoto2_port.so.10
No symbol table info available.
#9  0x00007fd87242cdb4 in ?? () from /usr/lib/x86_64-linux-gnu/libgphoto2/2.5.4/ptp2.so
No symbol table info available.
#10 0x00007fd87242d43b in ?? () from /usr/lib/x86_64-linux-gnu/libgphoto2/2.5.4/ptp2.so
No symbol table info available.
#11 0x00007fd87240fda0 in ?? () from /usr/lib/x86_64-linux-gnu/libgphoto2/2.5.4/ptp2.so
No symbol table info available.
#12 0x00007fd87240ffc9 in ?? () from /usr/lib/x86_64-linux-gnu/libgphoto2/2.5.4/ptp2.so
No symbol table info available.
#13 0x00007fd8724121d2 in ?? () from /usr/lib/x86_64-linux-gnu/libgphoto2/2.5.4/ptp2.so
No symbol table info available.
#14 0x00007fd87241e50f in ?? () from /usr/lib/x86_64-linux-gnu/libgphoto2/2.5.4/ptp2.so
No symbol table info available.
#15 0x00007fd87242bdc5 in ?? () from /usr/lib/x86_64-linux-gnu/libgphoto2/2.5.4/ptp2.so
No symbol table info available.
#16 0x00007fd8779fd46b in gp_filesystem_list_folders () from /usr/lib/x86_64-linux-gnu/libgphoto2.so.6
No symbol table info available.
#17 0x00007fd8779f6cba in gp_camera_folder_list_folders () from /usr/lib/x86_64-linux-gnu/libgphoto2.so.6
No symbol table info available.
#18 0x0000000000408d98 in ?? ()
No symbol table info available.
#19 0x00007fd87822fc2a in g_vfs_job_run () from /usr/lib/x86_64-linux-gnu/gvfs/libgvfsdaemon.so
No symbol table info available.
#20 0x00007fd87822a33f in ?? () from /usr/lib/x86_64-linux-gnu/gvfs/libgvfsdaemon.so
No symbol table info available.
#21 0x00007fd8770e6208 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#22 0x00007fd8770e5875 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#23 0x00007fd876e5f0a5 in start_thread (arg=0x7fd873a98700) at pthread_create.c:309
        __res = <optimised out>
        pd = 0x7fd873a98700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140567630153472, 7198443270006403942, 0, 0, 140567630154176, 140567630153472, -7181300419190557850, -7181288912511143066}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#24 0x00007fd876b8c84d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 6 (Thread 0x7fd870e5f700 (LWP 23642)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007fd877103537 in g_cond_wait_until () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fd877093a69 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fd87709408b in g_async_queue_timeout_pop () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007fd8770e62cc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fd8770e5875 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#6  0x00007fd876e5f0a5 in start_thread (arg=0x7fd870e5f700) at pthread_create.c:309
        __res = <optimised out>
        pd = 0x7fd870e5f700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140567583782656, 7198443270006403942, 0, 0, 140567583783360, 140567583782656, -7181302107649576090, -7181288912511143066}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fd876b8c84d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 5 (Thread 0x7fd871660700 (LWP 23620)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007fd87710341c in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fd8770e68e0 in g_thread_pool_free () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fd877cef087 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007fd87739923a in g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#5  0x00007fd877cef111 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#6  0x00007fd8770e6208 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#7  0x00007fd8770e5875 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#8  0x00007fd876e5f0a5 in start_thread (arg=0x7fd871660700) at pthread_create.c:309
        __res = <optimised out>
        pd = 0x7fd871660700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140567592175360, 7198443270006403942, 0, 0, 140567592176064, 140567592175360, -7181305405647588506, -7181288912511143066}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#9  0x00007fd876b8c84d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 4 (Thread 0x7fd871e61700 (LWP 23618)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007fd87710341c in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fd8770e68e0 in g_thread_pool_free () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fd877cef087 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007fd87739923a in g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#5  0x00007fd877cef111 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#6  0x00007fd8770e6208 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#7  0x00007fd8770e5875 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#8  0x00007fd876e5f0a5 in start_thread (arg=0x7fd871e61700) at pthread_create.c:309
        __res = <optimised out>
        pd = 0x7fd871e61700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140567600568064, 7198443270006403942, 0, 0, 140567600568768, 140567600568064, -7181304273386835098, -7181288912511143066}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#9  0x00007fd876b8c84d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 3 (Thread 0x7fd872e7a700 (LWP 23607)):
#0  0x00007fd876b8239d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fd872e89248 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
No symbol table info available.
#2  0x00007fd876e5f0a5 in start_thread (arg=0x7fd872e7a700) at pthread_create.c:309
        __res = <optimised out>
        pd = 0x7fd872e7a700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140567617447680, 7198443270006403942, 0, 0, 140567617448384, 140567617447680, -7181297688665099418, -7181288912511143066}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#3  0x00007fd876b8c84d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (Thread 0x7fd874299700 (LWP 23602)):
#0  0x00007fd876b8239d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fd8770beeb4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fd8770bf242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fd877d45b46 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007fd8770e5875 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fd876e5f0a5 in start_thread (arg=0x7fd874299700) at pthread_create.c:309
        __res = <optimised out>
        pd = 0x7fd874299700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140567638546176, 7198443270006403942, 0, 0, 140567638546880, 140567638546176, -7181294923243031706, -7181288912511143066}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007fd876b8c84d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (Thread 0x7fd878641840 (LWP 23601)):
#0  0x00007fd876ac8d27 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 23601
        selftid = 23601
#1  0x00007fd876aca418 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7fd87823a660, sa_sigaction = 0x7fd87823a660}, sa_mask = {__val = {4237679, 87, 140567707465047, 140733193388037, 0, 72057594037927936, 140567680486696, 33518960, 87, 140567705265334, 140567707493685, 0, 0, 140567684384648, 4294967295, 0}}, sa_flags = 0, sa_restorer = 0x1ff7570}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fd8770e4a75 in g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fd8770e4b0a in g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007fd87822acc2 in ?? () from /usr/lib/x86_64-linux-gnu/gvfs/libgvfsdaemon.so
No symbol table info available.
#5  0x00007fd87739923a in g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#6  0x000000000040a82c in ?? ()
No symbol table info available.
#7  0x00000000004049ae in ?? ()
No symbol table info available.
#8  0x00007fd876ab3ec5 in __libc_start_main (main=0x404960, argc=4, argv=0x7fff3397d878, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7fff3397d868) at libc-start.c:287
        result = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 7198443270006403942, 4213175, 140734058977392, 0, 0, -7198892762756254874, -7181289404752563354}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x40a8e0, 0x7fff3397d878}, data = {prev = 0x0, cleanup = 0x0, canceltype = 4237536}}}
        not_first_call = <optimised out>
#9  0x00000000004049e0 in ?? ()
No symbol table info available.