.
Thread 4 (LWP 2123):
#0  0xb77d6424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb7350eeb in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#2  0xb7165392 in poll (__timeout=-1, __nfds=2, __fds=0xb59ff2d0) at /usr/include/i386-linux-gnu/bits/poll2.h:46
No locals.
#3  linux_udev_event_thread_main (arg=0x0) at ../../libusb/os/linux_udev.c:175
        dummy = 0 '\000'
        udev_dev = <optimized out>
        fds = {{fd = 9, events = 1, revents = 0}, {fd = 8, events = 1, revents = 0}}
        __FUNCTION__ = "linux_udev_event_thread_main"
#4  0xb7428d78 in start_thread (arg=0xb59ffb40) at pthread_create.c:311
        __res = <optimized out>
        pd = 0xb59ffb40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1220304896, 0, 4001536, -1247808536, -1041732588, 2064967185}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#5  0xb73604fe in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131
No locals.
.
Thread 3 (LWP 2121):
#0  0xb77d6424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb7350eeb in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#2  0xb74e3a3b in poll (__timeout=-1, __nfds=3, __fds=0xb64023c8) at /usr/include/i386-linux-gnu/bits/poll2.h:46
No locals.
#3  g_poll (fds=fds@entry=0xb64023c8, nfds=nfds@entry=3, timeout=timeout@entry=-1) at /build/buildd/glib2.0-2.38.0/./glib/gpoll.c:132
No locals.
#4  0xb74d4b58 in g_main_context_poll (priority=2147483647, n_fds=3, fds=0xb64023c8, timeout=-1, context=0x89f5138) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:4006
        poll_func = 0xb74e3a10 <g_poll>
#5  g_main_context_iterate (context=0x89f5138, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3707
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 3
        allocated_nfds = <optimized out>
        fds = 0xb64023c8
#6  0xb74d503b in g_main_loop_run (loop=0x89f5100) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3906
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#7  0xb76c20ea in gdbus_shared_thread_func (user_data=0x89f5120) at /build/buildd/glib2.0-2.38.0/./gio/gdbusprivate.c:278
        data = 0x89f5120
#8  0xb74fac3a in g_thread_proxy (data=0x89ec4f0) at /build/buildd/glib2.0-2.38.0/./glib/gthread.c:798
        thread = 0x89ec4f0
#9  0xb7428d78 in start_thread (arg=0xb6d31b40) at pthread_create.c:311
        __res = <optimized out>
        pd = 0xb6d31b40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1220304896, 0, 4001536, -1227680792, 1479044114, 2064967185}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#10 0xb73604fe in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131
No locals.
.
Thread 2 (LWP 2120):
#0  0xb77d6424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb7350eeb in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#2  0xb74e3a3b in poll (__timeout=-1, __nfds=2, __fds=0x8a00408) at /usr/include/i386-linux-gnu/bits/poll2.h:46
No locals.
#3  g_poll (fds=fds@entry=0x8a00408, nfds=nfds@entry=2, timeout=timeout@entry=-1) at /build/buildd/glib2.0-2.38.0/./glib/gpoll.c:132
No locals.
#4  0xb74d4b58 in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x8a00408, timeout=-1, context=0x89ef5b8) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:4006
        poll_func = 0xb74e3a10 <g_poll>
#5  g_main_context_iterate (context=0x89ef5b8, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3707
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = <optimized out>
        fds = 0x8a00408
#6  0xb74d503b in g_main_loop_run (loop=0x89f54a0) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3906
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#7  0x08050ffc in daemon_main (argc=argc@entry=4, argv=argv@entry=0xbfb5dad4, max_job_threads=max_job_threads@entry=-1, default_type=default_type@entry=0x805113b "mtp", mountable_name=mountable_name@entry=0x0, first_type_name=first_type_name@entry=0x805113b "mtp") at daemon-main.c:405
        var_args = 0xbfb5da30 "\220\020\005\b"
        type = <optimized out>
        name_owner_id = 0
        data = 0x89f5530
#8  0x0804b623 in main (argc=4, argv=0xbfb5dad4) at daemon-main-generic.c:42
No locals.
.
Thread 1 (LWP 2122):
#0  get_device (job=<optimized out>, id=0x89ef730 "[usb:002,003]", backend=0xb6404aa8) at gvfsbackendmtp.c:856
        device = 0x0
        numrawdevices = 1
        err = <optimized out>
        i = <optimized out>
        extension = <optimized out>
        rawdevices = 0xb5a07228
#1  do_mount (backend=0xb6404aa8, job=0x89f45e8, mount_spec=0x89f9890, mount_source=0xb64050c8, is_automount=0) at gvfsbackendmtp.c:711
        op_backend = <optimized out>
        host = 0x89ef730 "[usb:002,003]"
        subsystems = {0x805181f "usb", 0x0}
#2  0xb77be9d0 in run (job=0x89f45e8) at gvfsjobmount.c:116
        op_job = <optimized out>
        backend = <optimized out>
        class = <optimized out>
#3  0xb77bd7c5 in g_vfs_job_run (job=job@entry=0x89f45e8) at gvfsjob.c:197
        class = 0x8a00518
#4  0xb77b71bf in job_handler_callback (data=0x89f45e8, user_data=0x89f4478) at gvfsdaemon.c:200
        job = 0x89f45e8
#5  0xb74fb6d5 in g_thread_pool_thread_proxy (data=0x89f7570) at /build/buildd/glib2.0-2.38.0/./glib/gthreadpool.c:309
        task = 0x89f45e8
        pool = 0x89f7570
#6  0xb74fac3a in g_thread_proxy (data=0x89f3200) at /build/buildd/glib2.0-2.38.0/./glib/gthread.c:798
        thread = 0x89f3200
#7  0xb7428d78 in start_thread (arg=0xb63ffb40) at pthread_create.c:311
        __res = <optimized out>
        pd = 0xb63ffb40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1220304896, 0, 4001536, -1237322776, -2115474413, 2064967185}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0xb73604fe in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131
No locals.