actually writing state to /home/colinf/ardour3-sessions/wwww/wwww.tmp renaming state to /home/colinf/ardour3-sessions/wwww/wwww.ardour Segmentation fault (core dumped) colinf@colinf-laptop:~/src/ardour2/ardour/gtk2_ardour$ ./ardbg GNU gdb (Debian 7.10-1+b1) 7.10 Copyright (C) 2015 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from ./../build/gtk2_ardour/ardour-4.6.251...done. (gdb) core-file core [New LWP 21160] [New LWP 21202] [New LWP 21242] [New LWP 21209] [New LWP 21162] [New LWP 21163] [New LWP 21164] [New LWP 21165] [New LWP 21166] [New LWP 21167] [New LWP 21176] [New LWP 21177] [New LWP 21199] [New LWP 21208] [New LWP 21216] [New LWP 21217] [New LWP 21218] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `./../build/gtk2_ardour/ardour-4.6.251'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f2405fc8251 in ArdourSurface::Mackie::Fader::factory (surface=..., id=8, name=0x7f240607711e "master", group=...) at ../libs/surfaces/mackie/fader.cc:42 42 group.add (*f); [Current thread is 1 (Thread 0x7f2424bc9a40 (LWP 21160))] (gdb) thread apply all bt Thread 17 (Thread 0x7f23d23fc700 (LWP 21218)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007f2420c5c9ff in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f242457f26b in ArdourCanvas::WaveView::drawing_thread () at ../libs/canvas/wave_view.cc:1543 #3 0x0000000000d038a3 in sigc::pointer_functor0::operator() (this=0x7253548) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77 #4 0x0000000000d00eb4 in sigc::adaptor_functor >::operator() (this=0x7253540) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256 #5 0x0000000000cfcf91 in sigc::internal::slot_call0, void>::call_it (rep=0x7253510) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:108 #6 0x00007f242117e75d in ?? () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #7 0x00007f2420c3e9c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #8 0x00007f241cbe3284 in start_thread (arg=0x7f23d23fc700) at pthread_create.c:333 #9 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 16 (Thread 0x7f23e5b35700 (LWP 21217)): #0 0x00007f241cbebedd in nanosleep () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f2420c40038 in g_usleep () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f2423464721 in ARDOUR::AutomationWatch::thread (this=0x3acc940) at ../libs/ardour/automation_watch.cc:153 #3 0x00007f2423467c2d in boost::_mfi::mf0::operator() (this=0x6b36110, p=0x3acc940) at /usr/include/boost/bind/mem_fn_template.hpp:49 #4 0x00007f242346788c in boost::_bi::list1 >::operator(), boost::_bi::list0> ( this=0x6b36120, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253 #5 0x00007f242346732d in boost::_bi::bind_t, boost::_bi::list1 > >::operator() ( this=0x6b36110) at /usr/include/boost/bind/bind.hpp:893 #6 0x00007f24234672ba in sigc::adaptor_functor, boost::_bi::list1 > > >::operator() (this=0x6b36110) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256 #7 0x00007f2423466d98 in sigc::internal::slot_call0, boost::_bi::list1 > >, void>::call_it (rep=0x6b360e0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:108 #8 0x00007f242117e75d in ?? () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #9 0x00007f2420c3e9c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #10 0x00007f241cbe3284 in start_thread (arg=0x7f23e5b35700) at pthread_create.c:333 #11 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 15 (Thread 0x7f23d37fe700 (LWP 21216)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007f24237f79d5 in ARDOUR::Session::emit_thread_run (this=0x304fb80) at ../libs/ardour/session_process.cc:1313 #2 0x00007f24237f7972 in ARDOUR::Session::emit_thread (arg=0x304fb80) at ../libs/ardour/session_process.cc:1302 #3 0x00007f241cbe3284 in start_thread (arg=0x7f23d37fe700) at pthread_create.c:333 #4 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 14 (Thread 0x7f23e5c3e800 (LWP 21208)): #0 0x00007f2419bcda9d in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f2421e0cc7a in CrossThreadChannel::poll_for_request (this=0x304ea28) at ../libs/pbd/crossthread.posix.cc:80 #2 0x00007f2421e0cce3 in CrossThreadChannel::receive (this=0x304ea28, msg=@0x7f23e5c3d2ef: 0 '\000', wait=true) at ../libs/pbd/crossthread.posix.cc:101 #3 0x00007f2423477eca in ARDOUR::Butler::thread_work (this=0x304e990) at ../libs/ardour/butler.cc:175 #4 0x00007f2423477c4b in ARDOUR::Butler::_thread_work (arg=0x304e990) at ../libs/ardour/butler.cc:156 #5 0x00007f2421e28c2e in fake_thread_start (arg=0x3a085c0) at ../libs/pbd/pthread_utils.cc:101 #6 0x00007f241cbe3284 in start_thread (arg=0x7f23e5c3e800) at pthread_create.c:333 #7 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 13 (Thread 0x7f23eed4e700 (LWP 21199)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007f23efbdeecb in mb_thread_func () from /usr/lib/x86_64-linux-gnu/libjack.so.0 #2 0x00007f241cbe3284 in start_thread (arg=0x7f23eed4e700) at pthread_create.c:333 #3 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 12 (Thread 0x7f23e6f5a700 (LWP 21177)): #0 0x00007f2419bcda9d in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f2420c181cc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f2420c18552 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 ---Type to continue, or q to quit--- #3 0x00007f241f2bc396 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #4 0x00007f2420c3e9c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007f241cbe3284 in start_thread (arg=0x7f23e6f5a700) at pthread_create.c:333 #6 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 11 (Thread 0x7f23edef8700 (LWP 21176)): #0 0x00007f2419bcda9d in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f2420c181cc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f2420c182dc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f2420c18319 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f2420c3e9c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007f241cbe3284 in start_thread (arg=0x7f23edef8700) at pthread_create.c:333 #6 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 10 (Thread 0x7f2404cd5700 (LWP 21167)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007f2420c5c9ff in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f242340eea8 in ARDOUR::AudioEngine::do_devicelist_update (this=0x2bb3610) at ../libs/ardour/audioengine.cc:559 #3 0x00007f242341ba1f in boost::_mfi::mf0::operator() (this=0x2bb3ea0, p=0x2bb3610) at /usr/include/boost/bind/mem_fn_template.hpp:49 #4 0x00007f242341b432 in boost::_bi::list1 >::operator(), boost::_bi::list0> (this=0x2bb3eb0, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253 #5 0x00007f242341a7c5 in boost::_bi::bind_t, boost::_bi::list1 > >::operator() ( this=0x2bb3ea0) at /usr/include/boost/bind/bind.hpp:893 #6 0x00007f2423419f60 in sigc::adaptor_functor, boost::_bi::list1 > > >::operator() (this=0x2bb3ea0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256 #7 0x00007f2423418eec in sigc::internal::slot_call0, boost::_bi::list1 > >, void>::call_it (rep=0x2bb3e70) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:108 #8 0x00007f242117e75d in ?? () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #9 0x00007f2420c3e9c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #10 0x00007f241cbe3284 in start_thread (arg=0x7f2404cd5700) at pthread_create.c:333 #11 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 9 (Thread 0x7f24054d6700 (LWP 21166)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007f2420c5c9ff in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f242340ec82 in ARDOUR::AudioEngine::do_reset_backend (this=0x2bb3610) at ../libs/ardour/audioengine.cc:524 #3 0x00007f242341ba1f in boost::_mfi::mf0::operator() (this=0x2bb2420, p=0x2bb3610) at /usr/include/boost/bind/mem_fn_template.hpp:49 #4 0x00007f242341b432 in boost::_bi::list1 >::operator(), boost::_bi::list0> (this=0x2bb2430, f=..., a=...) at /usr/include/boost/bind/bind.hpp:253 #5 0x00007f242341a7c5 in boost::_bi::bind_t, boost::_bi::list1 > >::operator() ( this=0x2bb2420) at /usr/include/boost/bind/bind.hpp:893 #6 0x00007f2423419f60 in sigc::adaptor_functor, boost::_bi::list1 > > >::operator() (this=0x2bb2420) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256 #7 0x00007f2423418eec in sigc::internal::slot_call0, boost::_bi::list1 > >, void>::call_it (rep=0x2bb23f0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:108 #8 0x00007f242117e75d in ?? () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #9 0x00007f2420c3e9c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #10 0x00007f241cbe3284 in start_thread (arg=0x7f24054d6700) at pthread_create.c:333 #11 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 8 (Thread 0x7f24074a4700 (LWP 21165)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007f2420c5c9ff in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f24233bd890 in ARDOUR::Analyser::work () at ../libs/ardour/analyser.cc:86 #3 0x00007f24233bd67c in analyser_work () at ../libs/ardour/analyser.cc:51 #4 0x0000000000d038a3 in sigc::pointer_functor0::operator() (this=0x2aea508) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77 #5 0x0000000000d00eb4 in sigc::adaptor_functor >::operator() (this=0x2aea500) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256 #6 0x0000000000cfcf91 in sigc::internal::slot_call0, void>::call_it (rep=0x2aea4d0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:108 ---Type to continue, or q to quit--- #7 0x00007f242117e75d in ?? () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #8 0x00007f2420c3e9c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #9 0x00007f241cbe3284 in start_thread (arg=0x7f24074a4700) at pthread_create.c:333 #10 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 7 (Thread 0x7f2407ca5700 (LWP 21164)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007f2420c5c9ff in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f2423865af6 in peak_thread_work () at ../libs/ardour/source_factory.cc:71 #3 0x0000000000d038a3 in sigc::pointer_functor0::operator() (this=0x2b64df8) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77 #4 0x0000000000d00eb4 in sigc::adaptor_functor >::operator() (this=0x2b64df0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256 #5 0x0000000000cfcf91 in sigc::internal::slot_call0, void>::call_it (rep=0x2b64dc0) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:108 #6 0x00007f242117e75d in ?? () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #7 0x00007f2420c3e9c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #8 0x00007f241cbe3284 in start_thread (arg=0x7f2407ca5700) at pthread_create.c:333 #9 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 6 (Thread 0x7f24084a6700 (LWP 21163)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007f2420c5c9ff in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f2423865af6 in peak_thread_work () at ../libs/ardour/source_factory.cc:71 #3 0x0000000000d038a3 in sigc::pointer_functor0::operator() (this=0x2b64958) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77 #4 0x0000000000d00eb4 in sigc::adaptor_functor >::operator() (this=0x2b64950) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256 #5 0x0000000000cfcf91 in sigc::internal::slot_call0, void>::call_it (rep=0x2b64920) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:108 #6 0x00007f242117e75d in ?? () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #7 0x00007f2420c3e9c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #8 0x00007f241cbe3284 in start_thread (arg=0x7f24084a6700) at pthread_create.c:333 #9 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 5 (Thread 0x7f2408ca7700 (LWP 21162)): #0 0x00007f241cbebedd in nanosleep () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f2420c40038 in g_usleep () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x0000000000fe23c1 in gui_event_loop (ptr=0x0) at ../gtk2_ardour/linux_vst_gui_support.cc:475 #3 0x00007f241cbe3284 in start_thread (arg=0x7f2408ca7700) at pthread_create.c:333 #4 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 4 (Thread 0x7f23e4b33700 (LWP 21209)): #0 0x00007f2419bcda9d in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f2420c181cc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f2420c18552 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f2421df6a1b in BaseUI::main_thread (this=0x3a08830) at ../libs/pbd/base_ui.cc:86 #4 0x00007f2421dfaa70 in sigc::bound_mem_functor0::operator() (this=0x3a08f68) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787 #5 0x00007f2421dfa6ae in sigc::adaptor_functor >::operator() (this=0x3a08f60) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256 #6 0x00007f2421dfa169 in sigc::internal::slot_call0, void>::call_it (rep=0x3a08f30) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:108 #7 0x00007f242117e75d in ?? () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #8 0x00007f2420c3e9c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #9 0x00007f241cbe3284 in start_thread (arg=0x7f23e4b33700) at pthread_create.c:333 #10 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 3 (Thread 0x7f23beffd700 (LWP 21242)): #0 0x00007f2419bcda9d in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f2420c181cc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f2420c18552 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f2421df6a1b in BaseUI::main_thread (this=0x30df960) at ../libs/pbd/base_ui.cc:86 #4 0x00007f2421dfaa70 in sigc::bound_mem_functor0::operator() (this=0x30dff38) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787 #5 0x00007f2421dfa6ae in sigc::adaptor_functor >::operator() (this=0x30dff30) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256 ---Type to continue, or q to quit--- #6 0x00007f2421dfa169 in sigc::internal::slot_call0, void>::call_it (rep=0x30dff00) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:108 #7 0x00007f242117e75d in ?? () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #8 0x00007f2420c3e9c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #9 0x00007f241cbe3284 in start_thread (arg=0x7f23beffd700) at pthread_create.c:333 #10 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 2 (Thread 0x7f23e62c5700 (LWP 21202)): #0 0x00007f2419bcda9d in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f23efbdd756 in jack_cycle_wait () from /usr/lib/x86_64-linux-gnu/libjack.so.0 #2 0x00007f2404269ed9 in ARDOUR::JACKAudioBackend::process_thread (this=0x2dced90) at ../libs/backends/jack/jack_audiobackend.cc:965 #3 0x00007f2404269e76 in ARDOUR::JACKAudioBackend::_process_thread (arg=0x2dced90) at ../libs/backends/jack/jack_audiobackend.cc:944 #4 0x00007f23efbddad8 in jack_process_thread_work () from /usr/lib/x86_64-linux-gnu/libjack.so.0 #5 0x00007f241cbe3284 in start_thread (arg=0x7f23e62c5700) at pthread_create.c:333 #6 0x00007f2419bd697d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7f2424bc9a40 (LWP 21160)): #0 0x00007f2405fc8251 in ArdourSurface::Mackie::Fader::factory (surface=..., id=8, name=0x7f240607711e "master", group=...) at ../libs/surfaces/mackie/fader.cc:42 #1 0x00007f2406058464 in ArdourSurface::Mackie::Surface::setup_master (this=0x7bd0c00) at ../libs/surfaces/mackie/surface.cc:393 #2 0x00007f24060559ee in ArdourSurface::Mackie::Surface::Surface (this=0x7bd0c00, mcp=..., device_name="Behringer X-Touch Compact", number=0, stype=ArdourSurface::Mackie::mcu) at ../libs/surfaces/mackie/surface.cc:121 #3 0x00007f2405ff208b in ArdourSurface::MackieControlProtocol::create_surfaces (this=0x30df7d0) at ../libs/surfaces/mackie/mackie_control_protocol.cc:857 #4 0x00007f2405ff1a22 in ArdourSurface::MackieControlProtocol::set_device (this=0x30df7d0, device_name="Behringer X-Touch Compact", force=false) at ../libs/surfaces/mackie/mackie_control_protocol.cc:798 #5 0x00007f2405fd3f9b in ArdourSurface::MackieControlProtocolGUI::surface_combo_changed (this=0x4a3b230) at ../libs/surfaces/mackie/gui.cc:813 #6 0x00007f2405fe320a in sigc::bound_mem_functor0::operator() (this=0x4a40368) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787 #7 0x00007f2405fe188e in sigc::adaptor_functor >::operator() (this=0x4a40360) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256 #8 0x00007f2405fdfb43 in sigc::internal::slot_call0, void>::call_it (rep=0x4a40330) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:108 #9 0x00007f242118b7b8 in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1 #10 0x00007f2420eecf45 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #11 0x00007f2420eff234 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #12 0x00007f2420f07d2c in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #13 0x00007f2420f0805f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #14 0x00007f24202283bb in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #15 0x00007f242022b018 in gtk_combo_box_set_active_iter () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #16 0x00007f242022b378 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #17 0x00007f2420eecf45 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #18 0x00007f2420efef91 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #19 0x00007f2420f07d2c in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #20 0x00007f2420f0805f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #21 0x00007f24203c40ae in gtk_widget_activate () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #22 0x00007f24202bf74d in gtk_menu_shell_activate_item () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #23 0x00007f24202bfaae in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #24 0x00007f24202ad9bc in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #25 0x00007f2420eecf45 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #26 0x00007f2420eff53e in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #27 0x00007f2420f077c9 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #28 0x00007f2420f0805f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #29 0x00007f24203c531c in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #30 0x00007f24202ac154 in gtk_propagate_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #31 0x00007f24202ac50b in gtk_main_do_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #32 0x00007f241ff20c2c in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0 #33 0x00007f2420c17fd7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #34 0x00007f2420c18230 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #35 0x00007f2420c18552 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #36 0x00007f24202ab587 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 ---Type to continue, or q to quit--- #37 0x00007f24241b0510 in Gtkmm2ext::UI::run (this=0x2c78950, old_receiver=...) at ../libs/gtkmm2ext/gtk_ui.cc:284 #38 0x0000000000ae8f1d in main (argc=1, argv=0x7ffc2fee6db8) at ../gtk2_ardour/main.cc:396 (gdb)