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    <div class="moz-cite-prefix">Thanks for the quick reply Paul, have
      modified the original post down here, so it can be read in one
      time.<br>
      <br>
      Le 17/11/2015 23:14, Paul Davis a écrit :<br>
    </div>
    <blockquote
cite="mid:CAFa_cKkmJ1pZCL2TEFLmTcR-PqwmKYVPaBxTYM0aXywHTBOOaQ@mail.gmail.com"
      type="cite">
      <div dir="ltr">Please paste the few lines from gdb before you
        typed "threads apply all bt". These show where it actually
        crashed.<br>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Tue, Nov 17, 2015 at 3:54 PM, fred <span
            dir="ltr"><<a moz-do-not-send="true"
              href="mailto:f.rech@yahoo.fr" target="_blank">f.rech@yahoo.fr</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi list,<br>
            <br>
            mix was almost done, just like to work on common reverb (IR
            lv2 on a stereo bus).<br>
            transport was rolling, I double clic on the IR plugin
            up-left in the editor view.<br>
            A4 (from the site) immediatly freeze.<br>
            have wait a long time, but nothing happened.<br>
            have to reboot like a vulgar winblows system.<br>
            after many tries, have updated to 4.4.0 from the site and
            try to start the session again.<br>
            it doesn't want to.<br>
            if someone here like to help, it will be really appreciated.<br>
            launch the session from terminal with --debug gives that :<br>
            <br>
            [New Thread 0x9c2ffb70 (LWP 2935)]<br>
            [New Thread 0x997ffb70 (LWP 2936)]<br>
            [New Thread 0x94155b70 (LWP 2937)]<br>
            Set buffering params to 262144|131072|10|10<br>
            Skip explicit buffer seconds, preset in use<br>
            Skip explicit buffer seconds, preset in use<br>
            unknown source port in attempted connection [jamin:out_L]<br>
            unknown source port in attempted connection [jamin:out_R]<br>
            unknown destination port in attempted connection
            [jamin:in_L]<br>
            unknown destination port in attempted connection
            [jamin:in_R]<br>
            [New Thread 0x93155b70 (LWP 2938)]<br>
            <br>
            Program received signal SIGSEGV, Segmentation fault.<br>
            [Switching to Thread 0xa8276b70 (LWP 2891)]<br>
            0x40e77000 in ?? ()<br>
            (gdb) subgraph starting at ardour timed out
            (subgraph_wait_fd=22, status = 0, state = Triggered, pollret
            = 0 revents = 0x0)<br>
            pp: cannot clean up byte from graph wait fd () - no data
            present<br>
            <br>
            <br>
            **** alsa_pcm: xrun of at least 179.780 msecs<br>
            <br>
            <br>
            timeout waiting for client ardour to handle a xrun event<br>
            <br>
            <br>
            **** alsa_pcm: xrun of at least 1957.419 msecs<br>
            <br>
            <br>
            thread apply all bt<br>
            <br>
            Thread 31 (Thread 0x93155b70 (LWP 2938)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ea20a in __pthread_cond_wait (cond=0x8dc5828,
            mutex=0x8dc5810) at pthread_cond_wait.c:153<br>
            #2  0xb7c87a3c in ARDOUR::Session::emit_thread_run() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #3  0xb7c87a7b in ARDOUR::Session::emit_thread(void*) ()
            from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #4  0xb63e5c39 in start_thread (arg=0x93155b70) at
            pthread_create.c:304<br>
            #5  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 30 (Thread 0x94155b70 (LWP 2937)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63edb16 in nanosleep () at
            ../sysdeps/unix/syscall-template.S:82<br>
            #2  0xa6d10d41 in ?? () from /usr/lib/lv2/ir.lv2/ir.so<br>
            #3  0xb73fa5d2 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #4  0xb73989c5 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #5  0xb63e5c39 in start_thread (arg=0x94155b70) at
            pthread_create.c:304<br>
            #6  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 29 (Thread 0x997ffb70 (LWP 2936)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63edb16 in nanosleep () at
            ../sysdeps/unix/syscall-template.S:82<br>
            #2  0xa6d10d41 in ?? () from /usr/lib/lv2/ir.lv2/ir.so<br>
            #3  0xb73fa5d2 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #4  0xb73989c5 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #5  0xb63e5c39 in start_thread (arg=0x997ffb70) at
            pthread_create.c:304<br>
            #6  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 28 (Thread 0x9c2ffb70 (LWP 2935)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63edb16 in nanosleep () at
            ../sysdeps/unix/syscall-template.S:82<br>
            #2  0xa6d10d41 in ?? () from /usr/lib/lv2/ir.lv2/ir.so<br>
            #3  0xb73fa5d2 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #4  0xb73989c5 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #5  0xb63e5c39 in start_thread (arg=0x9c2ffb70) at
            pthread_create.c:304<br>
            #6  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 27 (Thread 0xa2d4db70 (LWP 2934)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb5bd8041 in select () at
            ../sysdeps/unix/syscall-template.S:82<br>
            #2  0xa2db801a in ?? () from
            /usr/lib/lv2/drowaudio-reverb.lv2/drowaudio-reverb.so<br>
            #3  0xa2db821a in ?? () from
            /usr/lib/lv2/drowaudio-reverb.lv2/drowaudio-reverb.so<br>
            #4  0xa2d70152 in ?? () from
            /usr/lib/lv2/drowaudio-reverb.lv2/drowaudio-reverb.so<br>
            #5  0xa2daa162 in ?? () from
            /usr/lib/lv2/drowaudio-reverb.lv2/drowaudio-reverb.so<br>
            #6  0xa2daa2ef in ?? () from
            /usr/lib/lv2/drowaudio-reverb.lv2/drowaudio-reverb.so<br>
            #7  0xb63e5c39 in start_thread (arg=0xa2d4db70) at
            pthread_create.c:304<br>
            #8  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 26 (Thread 0xa9dafb70 (LWP 2895)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb5bd1356 in *__GI___poll (fds=0xb5c67ff4, nfds=5,
            timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87<br>
            ---Type <return> to continue, or q <return> to
            quit---<br>
            #2  0xb73df0db in g_poll () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #3  0xb73ce2cc in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #4  0xb73ce3ff in g_main_loop_run () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #5  0xb7541e05 in Glib::MainLoop::run() () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #6  0xb7694db6 in BaseUI::main_thread() () from
            /opt/Ardour-4.4.0/lib/libpbd.so.4<br>
            #7  0xb769588c in
            sigc::internal::slot_call0<sigc::bound_mem_functor0<void,
            BaseUI>, void>::call_it(sigc::internal::slot_rep*) ()
            from /opt/Ardour-4.4.0/lib/libpbd.so.4<br>
            #8  0xb7535422 in ?? () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #9  0xb73fa5d2 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #10 0xb63e5c39 in start_thread (arg=0xa9dafb70) at
            pthread_create.c:304<br>
            #11 0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 25 (Thread 0xa7ff8c90 (LWP 2894)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb5bdb2c8 in mmap () at
            ../sysdeps/unix/sysv/linux/i386/mmap.S:62<br>
            #2  0xb5b7c4be in sYSMALLOc (av=<value optimized out>,
            bytes=<value optimized out>) at malloc.c:3026<br>
            #3  _int_malloc (av=<value optimized out>,
            bytes=<value optimized out>) at malloc.c:4776<br>
            #4  0xb5b7d97c in *__GI___libc_malloc (bytes=8388608) at
            malloc.c:3660<br>
            #5  0xb5cff7b5 in operator new(unsigned int) () from
            /usr/lib/i386-linux-gnu/libstdc++.so.6<br>
            #6  0xb5cff8bb in operator new[](unsigned int) () from
            /usr/lib/i386-linux-gnu/libstdc++.so.6<br>
            #7  0xb795004f in
            ARDOUR::AudioDiskstream::_do_refill_with_alloc(bool) () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #8  0xb7948d5b in ARDOUR::AudioDiskstream::seek(long long,
            bool) () from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #9  0xb7947a5a in
            ARDOUR::AudioDiskstream::non_realtime_locate(long long) ()
            from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #10 0xb7cf883f in ARDOUR::Track::non_realtime_locate(long
            long) () from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #11 0xb7cc87f7 in ARDOUR::Session::butler_transport_work()
            () from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #12 0xb79d5393 in ARDOUR::Butler::thread_work() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #13 0xb79d5cc7 in ARDOUR::Butler::_thread_work(void*) ()
            from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #14 0xb76ba937 in ?? () from
            /opt/Ardour-4.4.0/lib/libpbd.so.4<br>
            #15 0xb63e5c39 in start_thread (arg=0xa7ff8c90) at
            pthread_create.c:304<br>
            #16 0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 24 (Thread 0xa8174b70 (LWP 2893)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ec655 in <a class="moz-txt-link-abbreviated" href="mailto:sem_wait@@GLIBC_2.1">sem_wait@@GLIBC_2.1</a> () at
            ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/sem_wait.S:80<br>
            #2  0xb7a823bf in ARDOUR::Graph::run_one() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #3  0xb7a82480 in ARDOUR::Graph::helper_thread() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #4  0xb7a8462b in
            boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void,
            boost::_mfi::mf0<void, ARDOUR::Graph>,
            boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*>
            > >,
            void>::invoke(boost::detail::function::function_buffer&)
            () from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #5  0x08497f09 in boost::function0<void>::operator()()
            const ()<br>
            #6  0xb31a8de4 in
            ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
            from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so<br>
            #7  0xb315ac77 in jack_thread_proxy (varg=0xa0b0198) at
            thread.c:137<br>
            #8  0xb63e5c39 in start_thread (arg=0xa8174b70) at
            pthread_create.c:304<br>
            #9  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 23 (Thread 0xa81f5b70 (LWP 2892)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ec655 in <a class="moz-txt-link-abbreviated" href="mailto:sem_wait@@GLIBC_2.1">sem_wait@@GLIBC_2.1</a> () at
            ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/sem_wait.S:80<br>
            #2  0xb7a823bf in ARDOUR::Graph::run_one() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #3  0xb7a82480 in ARDOUR::Graph::helper_thread() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #4  0xb7a8462b in
            boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void,
            boost::_mfi::mf0<void, ARDOUR::Graph>,
            boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*>
            > >,
            void>::invoke(boost::detail::function::function_buffer&)
            () from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            ---Type <return> to continue, or q <return> to
            quit---<br>
            #5  0x08497f09 in boost::function0<void>::operator()()
            const ()<br>
            #6  0xb31a8de4 in
            ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
            from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so<br>
            #7  0xb315ac77 in jack_thread_proxy (varg=0xa0b2db0) at
            thread.c:137<br>
            #8  0xb63e5c39 in start_thread (arg=0xa81f5b70) at
            pthread_create.c:304<br>
            #9  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 22 (Thread 0xa8276b70 (LWP 2891)):<br>
            #0  0x40e77000 in ?? ()<br>
            #1  0x999fc3b4 in ?? ()<br>
            Backtrace stopped: previous frame inner to this frame
            (corrupt stack?)<br>
            <br>
            Thread 21 (Thread 0xa82f7b70 (LWP 2890)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ec655 in <a class="moz-txt-link-abbreviated" href="mailto:sem_wait@@GLIBC_2.1">sem_wait@@GLIBC_2.1</a> () at
            ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/sem_wait.S:80<br>
            #2  0xb7a823bf in ARDOUR::Graph::run_one() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #3  0xb7a82480 in ARDOUR::Graph::helper_thread() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #4  0xb7a8462b in
            boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void,
            boost::_mfi::mf0<void, ARDOUR::Graph>,
            boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*>
            > >,
            void>::invoke(boost::detail::function::function_buffer&)
            () from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #5  0x08497f09 in boost::function0<void>::operator()()
            const ()<br>
            #6  0xb31a8de4 in
            ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
            from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so<br>
            #7  0xb315ac77 in jack_thread_proxy (varg=0xa0b0198) at
            thread.c:137<br>
            #8  0xb63e5c39 in start_thread (arg=0xa82f7b70) at
            pthread_create.c:304<br>
            #9  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 20 (Thread 0xa8378b70 (LWP 2889)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ec655 in <a class="moz-txt-link-abbreviated" href="mailto:sem_wait@@GLIBC_2.1">sem_wait@@GLIBC_2.1</a> () at
            ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/sem_wait.S:80<br>
            #2  0xb7a823bf in ARDOUR::Graph::run_one() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #3  0xb7a82480 in ARDOUR::Graph::helper_thread() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #4  0xb7a8462b in
            boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void,
            boost::_mfi::mf0<void, ARDOUR::Graph>,
            boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*>
            > >,
            void>::invoke(boost::detail::function::function_buffer&)
            () from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #5  0x08497f09 in boost::function0<void>::operator()()
            const ()<br>
            #6  0xb31a8de4 in
            ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
            from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so<br>
            #7  0xb315ac77 in jack_thread_proxy (varg=0x8c2e090) at
            thread.c:137<br>
            #8  0xb63e5c39 in start_thread (arg=0xa8378b70) at
            pthread_create.c:304<br>
            #9  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 19 (Thread 0xa83f9b70 (LWP 2888)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ec655 in <a class="moz-txt-link-abbreviated" href="mailto:sem_wait@@GLIBC_2.1">sem_wait@@GLIBC_2.1</a> () at
            ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/sem_wait.S:80<br>
            #2  0xb7a823bf in ARDOUR::Graph::run_one() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #3  0xb7a82480 in ARDOUR::Graph::helper_thread() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #4  0xb7a8462b in
            boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void,
            boost::_mfi::mf0<void, ARDOUR::Graph>,
            boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*>
            > >,
            void>::invoke(boost::detail::function::function_buffer&)
            () from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #5  0x08497f09 in boost::function0<void>::operator()()
            const ()<br>
            #6  0xb31a8de4 in
            ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
            from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so<br>
            #7  0xb315ac77 in jack_thread_proxy (varg=0x8e823f0) at
            thread.c:137<br>
            #8  0xb63e5c39 in start_thread (arg=0xa83f9b70) at
            pthread_create.c:304<br>
            #9  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            ---Type <return> to continue, or q <return> to
            quit---<br>
            Thread 18 (Thread 0xa847ab70 (LWP 2887)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ec655 in <a class="moz-txt-link-abbreviated" href="mailto:sem_wait@@GLIBC_2.1">sem_wait@@GLIBC_2.1</a> () at
            ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/sem_wait.S:80<br>
            #2  0xb7a823bf in ARDOUR::Graph::run_one() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #3  0xb7a826ea in ARDOUR::Graph::main_thread() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #4  0xb7a8462b in
            boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void,
            boost::_mfi::mf0<void, ARDOUR::Graph>,
            boost::_bi::list1<boost::_bi::value<ARDOUR::Graph*>
            > >,
            void>::invoke(boost::detail::function::function_buffer&)
            () from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #5  0x08497f09 in boost::function0<void>::operator()()
            const ()<br>
            #6  0xb31a8de4 in
            ARDOUR::JACKAudioBackend::_start_process_thread(void*) ()
            from /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so<br>
            #7  0xb315ac77 in jack_thread_proxy (varg=0x8dd3c60) at
            thread.c:137<br>
            #8  0xb63e5c39 in start_thread (arg=0xa847ab70) at
            pthread_create.c:304<br>
            #9  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 16 (Thread 0xa924ab70 (LWP 2884)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb5bd1356 in *__GI___poll (fds=0xb5c67ff4, nfds=2,
            timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:87<br>
            #2  0xb3153eb1 in jack_client_core_wait (client=0xa0d0d18)
            at client.c:2007<br>
            #3  0xb31541cf in jack_cycle_wait (client=0xa0d0d18) at
            client.c:2189<br>
            #4  0xb31bb774 in WJACK_cycle_wait () from
            /opt/Ardour-4.4.0/lib/backends/libjack_audiobackend.so<br>
            #5  0x00000000 in ?? ()<br>
            <br>
            Thread 15 (Thread 0xaa5b0b70 (LWP 2876)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ea20a in __pthread_cond_wait (cond=0xb316b960,
            mutex=0xb316b934) at pthread_cond_wait.c:153<br>
            #2  0xb3155e8a in mb_thread_func (arg=0x0) at
            messagebuffer.c:72<br>
            #3  0xb63e5c39 in start_thread (arg=0xaa5b0b70) at
            pthread_create.c:304<br>
            #4  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 11 (Thread 0xb1c5bb70 (LWP 2871)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb5bd1356 in *__GI___poll (fds=0xb5c67ff4, nfds=2,
            timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87<br>
            #2  0xb73df0db in g_poll () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #3  0xb73ce2cc in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #4  0xb73ce533 in g_main_context_iteration () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #5  0xb73ce596 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #6  0xb73fa5d2 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #7  0xb63e5c39 in start_thread (arg=0xb1c5bb70) at
            pthread_create.c:304<br>
            #8  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 7 (Thread 0xb27feb70 (LWP 2865)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ea20a in __pthread_cond_wait (cond=0xb32777f0,
            mutex=0xb3277828) at pthread_cond_wait.c:153<br>
            #2  0xb741d262 in g_cond_wait () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #3  0xb7534d04 in
            Glib::Threads::Cond::wait(Glib::Threads::Mutex&) () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #4  0xb7982478 in
            ARDOUR::AudioEngine::do_devicelist_update() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #5  0xb798520c in
            sigc::internal::slot_call0<boost::_bi::bind_t<void,
            boost::_mfi::mf0<void, ARDOUR::AudioEngine>,
            boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*>
            > >, void>::call_it(sigc::internal::slot_rep*) ()
            from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #6  0xb7535422 in ?? () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #7  0xb73fa5d2 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #8  0xb63e5c39 in start_thread (arg=0xb27feb70) at
            pthread_create.c:304<br>
            ---Type <return> to continue, or q <return> to
            quit---<br>
            #9  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 6 (Thread 0xb2fffb70 (LWP 2864)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ea20a in __pthread_cond_wait (cond=0xb3277798,
            mutex=0xb32777d0) at pthread_cond_wait.c:153<br>
            #2  0xb741d262 in g_cond_wait () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #3  0xb7534d04 in
            Glib::Threads::Cond::wait(Glib::Threads::Mutex&) () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #4  0xb798279c in ARDOUR::AudioEngine::do_reset_backend() ()
            from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #5  0xb798520c in
            sigc::internal::slot_call0<boost::_bi::bind_t<void,
            boost::_mfi::mf0<void, ARDOUR::AudioEngine>,
            boost::_bi::list1<boost::_bi::value<ARDOUR::AudioEngine*>
            > >, void>::call_it(sigc::internal::slot_rep*) ()
            from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #6  0xb7535422 in ?? () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #7  0xb73fa5d2 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #8  0xb63e5c39 in start_thread (arg=0xb2fffb70) at
            pthread_create.c:304<br>
            #9  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 5 (Thread 0xb3b41b70 (LWP 2863)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ea20a in __pthread_cond_wait (cond=0x8ab3060,
            mutex=0x8ab3040) at pthread_cond_wait.c:153<br>
            #2  0xb741d262 in g_cond_wait () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #3  0xb7534d04 in
            Glib::Threads::Cond::wait(Glib::Threads::Mutex&) () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #4  0xb7941dc2 in ARDOUR::Analyser::work() () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #5  0xb7941f64 in ?? () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #6  0xb7535422 in ?? () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #7  0xb73fa5d2 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #8  0xb63e5c39 in start_thread (arg=0xb3b41b70) at
            pthread_create.c:304<br>
            #9  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 4 (Thread 0xb4342b70 (LWP 2862)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ea20a in __pthread_cond_wait (cond=0x8abcff0,
            mutex=0x8abd028) at pthread_cond_wait.c:153<br>
            #2  0xb741d262 in g_cond_wait () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #3  0xb7534d04 in
            Glib::Threads::Cond::wait(Glib::Threads::Mutex&) () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #4  0xb7cdbe72 in ?? () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #5  0xb7535422 in ?? () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #6  0xb73fa5d2 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #7  0xb63e5c39 in start_thread (arg=0xb4342b70) at
            pthread_create.c:304<br>
            #8  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 3 (Thread 0xb4b43b70 (LWP 2861)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ea20a in __pthread_cond_wait (cond=0x8abcff0,
            mutex=0x8abd028) at pthread_cond_wait.c:153<br>
            #2  0xb741d262 in g_cond_wait () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #3  0xb7534d04 in
            Glib::Threads::Cond::wait(Glib::Threads::Mutex&) () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #4  0xb7cdbe72 in ?? () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #5  0xb7535422 in ?? () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #6  0xb73fa5d2 in ?? () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #7  0xb63e5c39 in start_thread (arg=0xb4b43b70) at
            pthread_create.c:304<br>
            #8  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 2 (Thread 0xb5344b70 (LWP 2860)):<br>
            ---Type <return> to continue, or q <return> to
            quit---<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63edb16 in nanosleep () at
            ../sysdeps/unix/syscall-template.S:82<br>
            #2  0xb73fc192 in g_usleep () from
            /opt/Ardour-4.4.0/lib/libglib-2.0.so.0<br>
            #3  0xb754bdbd in Glib::usleep(unsigned long) () from
            /opt/Ardour-4.4.0/lib/libglibmm-2.4.so.1<br>
            #4  0x08856863 in ?? ()<br>
            #5  0xb63e5c39 in start_thread (arg=0xb5344b70) at
            pthread_create.c:304<br>
            #6  0xb5bded4e in clone () at
            ../sysdeps/unix/sysv/linux/i386/clone.S:130<br>
            <br>
            Thread 1 (Thread 0xb562d7f0 (LWP 2857)):<br>
            #0  0xb7fe1424 in __kernel_vsyscall ()<br>
            #1  0xb63ec655 in <a class="moz-txt-link-abbreviated" href="mailto:sem_wait@@GLIBC_2.1">sem_wait@@GLIBC_2.1</a> () at
            ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/sem_wait.S:80<br>
            #2  0xb7a8210a in ARDOUR::Graph::routes_no_roll(unsigned
            int, long long, long long, bool, int) () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #3  0xb7c87ebd in ARDOUR::Session::no_roll(unsigned int) ()
            from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #4  0xb7c88a23 in ARDOUR::Session::fail_roll(unsigned int)
            () from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #5  0xb7c88b7a in
            ARDOUR::Session::process_without_events(unsigned int) ()
            from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #6  0xb7c893e5 in
            ARDOUR::Session::process_with_events(unsigned int) () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #7  0xb7c87b2e in ARDOUR::Session::process(unsigned int) ()
            from /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #8  0xb797fecc in
            ARDOUR::AudioEngine::set_session(ARDOUR::Session*) () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #9  0xb7c3f8f0 in
            ARDOUR::Session::Session(ARDOUR::AudioEngine&,
            std::string const&, std::string const&,
            ARDOUR::BusProfile*, std::string) () from
            /opt/Ardour-4.4.0/lib/libardour.so.3<br>
            #10 0x080ec4d7 in ?? ()<br>
            #11 0x080f8afc in ?? ()<br>
            #12 0x08107d3c in ?? ()<br>
            #13 0xb7eded57 in Gtkmm2ext::UI::run(Receiver&) () from
            /opt/Ardour-4.4.0/lib/libgtkmm2ext.so.0<br>
            #14 0x0843a292 in ?? ()<br>
            #15 0xb5b1ee46 in __libc_start_main (main=0x8439860, argc=1,
            ubp_av=0xbfffeab4, init=0x8858d20, fini=0x8858d10,
            rtld_fini=0xb7ff0590, stack_end=0xbfffeaac) at
            libc-start.c:244<br>
            #16 0x080bb491 in ?? ()<br>
            (gdb) <br>
            <br>
            <br>
            Thanks,<br>
            Fred<br>
            _______________________________________________<br>
            Ardour-Users mailing list<br>
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              target="_blank">ardour-users@lists.ardour.org</a><br>
            To unsubscribe  or change your mailing preferences please
            visit:<br>
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              rel="noreferrer" target="_blank">http://lists.ardour.org/listinfo.cgi/ardour-users-ardour.org</a><br>
          </blockquote>
        </div>
        <br>
      </div>
    </blockquote>
    <br>
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