stian@Aondo:~/download/source/audio/ardour-2-ongoing/gtk2_ardour$ ./ardbg
GNU gdb 6.6-debian
Copyright (C) 2006 Free Software Foundation, Inc.
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This GDB was configured as "i486-linux-gnu"...
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
(gdb) run
Starting program: /home/stian/download/source/audio/ardour-2-ongoing/gtk2_ardour/ardour-2.1
[Thread debugging using libthread_db enabled]
[New Thread -1238493504 (LWP 6403)]
Ardour/GTK 2.1
   (built using 2513 and GCC version 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2))
Copyright (C) 1999-2007 Paul Davis
Some portions Copyright (C) Steve Harris, Ari Johnson, Brett Viren, Joel Baker

Ardour comes with ABSOLUTELY NO WARRANTY
not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
This is free software, and you are welcome to redistribute it
under certain conditions; see the source for copying conditions.
loading default ui configuration file gtk2_ardour/ardour2_ui_default.conf
loading user ui configuration file /home/stian/.ardour2/ardour2_ui.conf
ardour: [INFO]: Loading ui configuration file gtk2_ardour/ardour2_ui_dark.rc
theme_init() called from internal clearlooks engine
loading system configuration file /home/stian/bin/ardour2-ongoing/etc/ardour2/ardour_system.rc
loading user configuration file /home/stian/.ardour2/ardour.rc
ardour: [INFO]: Using SSE optimized routines
[New Thread -1241117808 (LWP 6406)]
[New Thread -1249510512 (LWP 6407)]
ardour: [INFO]: looking for control protocols in /home/stian/.ardour2/surfaces/:/home/stian/bin/ardour2-ongoing/lib/ardour2/surfaces/
ardour: [INFO]: Control surface protocol discovered: "Generic MIDI"
ardour: [INFO]: Control surface protocol discovered: "Mackie"
powermate: Opening of powermate failed - No such file or directory
ardour: [INFO]: Control protocol powermate not usable
ardour: [INFO]: Control protocol Tranzport not usable
[New Thread -1282491504 (LWP 6408)]
[New Thread -1290884208 (LWP 6409)]
[Thread -1290884208 (LWP 6409) exited]
[Thread -1282491504 (LWP 6408) exited]
[New Thread -1282491504 (LWP 6410)]
[New Thread -1290884208 (LWP 6411)]
[Thread -1290884208 (LWP 6411) exited]
[New Thread -1290884208 (LWP 6414)]
[New Thread -1299276912 (LWP 6415)]
[New Thread -1307669616 (LWP 6416)]
[Thread -1307669616 (LWP 6416) exited]
[Thread -1299276912 (LWP 6415) exited]
[Thread -1290884208 (LWP 6414) exited]
[Thread -1282491504 (LWP 6410) exited]
[New Thread -1282491504 (LWP 6417)]
[New Thread -1290884208 (LWP 6418)]
[New Thread -1299276912 (LWP 6419)]
[New Thread -1307669616 (LWP 6420)]
[Thread -1307669616 (LWP 6420) exited]
[Thread -1290884208 (LWP 6418) exited]
[Thread -1282491504 (LWP 6417) exited]
[New Thread -1320162128 (LWP 6423)]
loading bindings from gtk2_ardour/ardour.bindings
[New Thread -1282491504 (LWP 6424)]
nsd now on page 1
Loading session /home/stian/musikkprod/somedays using snapshot somedays (1)
[New Thread -1322734416 (LWP 6425)]
[New Thread -1323238224 (LWP 6426)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1282491504 (LWP 6424)]
0xb67a7cbc in memcpy () from /lib/tls/i686/cmov/libc.so.6
(gdb) thread apply all bt

Thread 18 (Thread -1323238224 (LWP 6426)):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb67ff5e7 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7e394e0 in ARDOUR::Session::midi_thread_work (this=0x8f8ca00) at libs/ardour/session_midi.cc:1220
#3  0xb7e39a6d in ARDOUR::Session::_midi_thread_work (arg=0x8f8ca00) at libs/ardour/session_midi.cc:1141
#4  0xb699346b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0xb68096de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 17 (Thread -1322734416 (LWP 6425)):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb699a1fb in ?? () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6ce4698 in psf_fread (ptr=0xb0d7f008, bytes=4, items=262144, psf=0xb1740ec8) at libs/libsndfile/src/file_io.c:316
#3  0xb6cbf66e in host_read_f (psf=0xb1740ec8, ptr=0xb0d7f008, len=65536) at libs/libsndfile/src/float32.c:538
#4  0xb6ccf2d9 in sf_read_float (sndfile=0xb1740ec8, ptr=0xb0d7f008, len=65536) at libs/libsndfile/src/sndfile.c:1566
#5  0xb7e6c346 in ARDOUR::SndFileSource::read_unlocked (this=0xb170a710, dst=0xb0d7f008, start=65536, cnt=65536) at libs/ardour/sndfilesource.cc:341
#6  0xb7d037c1 in ARDOUR::AudioSource::read (this=0xb170a710, dst=0xb0d7f008, start=65536, cnt=65536) at libs/ardour/audiosource.cc:242
#7  0xb7cfac0a in ARDOUR::AudioRegion::_read_at (this=0xb10effa8, srcs=@0xb10f003c, buf=0xb0d7f008, mixdown_buffer=0xb0d7f008, gain_buffer=0x8fcf468, position=65536,
    cnt=65536, chan_n=1, read_frames=0, skip_frames=0) at libs/ardour/audioregion.cc:498
#8  0xb7cfb192 in ARDOUR::AudioRegion::read_at (this=0xb10effa8, buf=0xb0d7f008, mixdown_buffer=0x8f8f460, gain_buffer=0x8fcf468, position=65536, cnt=65536, chan_n=1,
    read_frames=0, skip_frames=0) at libs/ardour/audioregion.cc:445
#9  0xb7cceae2 in ARDOUR::AudioPlaylist::read (this=0xb10efdc0, buf=0xb0d7f008, mixdown_buffer=0x8f8f460, gain_buffer=0x8fcf468, start=65536, cnt=65536, chan_n=1)
    at libs/ardour/audio_playlist.cc:198
#10 0xb7cb9f4c in ARDOUR::AudioDiskstream::read (this=0xb10f1b80, buf=0xb0d7f008, mixdown_buffer=0x8f8f460, gain_buffer=0x8fcf468, start=@0xb128a33c, cnt=65536,
    channel_info=0xb10f26f0, channel=1, reversed=false) at libs/ardour/audio_diskstream.cc:1076
#11 0xb7cbaafd in ARDOUR::AudioDiskstream::_do_refill (this=0xb10f1b80, mixdown_buffer=0x8f8f460, gain_buffer=0x8fcf468) at libs/ardour/audio_diskstream.cc:1326
#12 0xb7cc77e1 in ARDOUR::AudioDiskstream::do_refill (this=0xb10f1b80) at libs/ardour/ardour/audio_diskstream.h:219
#13 0xb7e1b43b in ARDOUR::Session::butler_thread_work (this=0x8f8ca00) at libs/ardour/session_butler.cc:256
#14 0xb7e1bdd3 in ARDOUR::Session::_butler_thread_work (arg=0x8f8ca00) at libs/ardour/session_butler.cc:157
#15 0xb699346b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#16 0xb68096de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 16 (Thread -1282491504 (LWP 6424)):
#0  0xb67a7cbc in memcpy () from /lib/tls/i686/cmov/libc.so.6
#1  0xb7d76f35 in ARDOUR::IO::collect_input (this=0xb0b41f60, bufs=@0x8f8cbc8, nbufs=3, nframes=1024, offset=0) at libs/ardour/io.cc:570
#2  0xb7dce4c0 in ARDOUR::Route::passthru (this=0xb0b41f60, start_frame=0, end_frame=1024, nframes=1024, offset=0, declick=0, meter_first=false)
    at libs/ardour/route.cc:740
#3  0xb7cdf246 in ARDOUR::AudioTrack::no_roll (this=0xb0b41f60, nframes=1024, start_frame=0, end_frame=1024, offset=0, session_state_changing=false, can_record=false,
    rec_monitors_input=false) at libs/ardour/audio_track.cc:521
#4  0xb7e41c6b in ARDOUR::Session::no_roll (this=0x8f8ca00, nframes=1024, offset=0) at libs/ardour/session_process.cc:103
#5  0xb7e42a8e in ARDOUR::Session::process_without_events (this=0x8f8ca00, nframes=1024) at libs/ardour/session_process.cc:742
#6  0xb7e42e79 in ARDOUR::Session::process_with_events (this=0x8f8ca00, nframes=1024) at libs/ardour/session_process.cc:288
#7  0xb7e43512 in ARDOUR::Session::process (this=0x8f8ca00, nframes=1024) at libs/ardour/session_process.cc:62
#8  0xb7ce8f8e in ARDOUR::AudioEngine::process_callback (this=0x8c3f398, nframes=1024) at libs/ardour/audioengine.cc:304
#9  0xb7ce925a in ARDOUR::AudioEngine::_process_callback (nframes=1024, arg=0x8c3f398) at libs/ardour/audioengine.cc:258
#10 0xb69ad279 in jack_client_thread (arg=0x8c80ba8) at client.c:1551
#11 0xb699346b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#12 0xb68096de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 15 (Thread -1320162128 (LWP 6423)):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb699a9f6 in ?? () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7562962 in g_usleep () from /usr/lib/libglib-2.0.so.0
#3  0xb6c7fa75 in Glib::usleep (microseconds=10000) at libs/glibmm2/glibmm/timer.cc:68
#4  0xb7ce8a40 in ARDOUR::AudioEngine::meter_thread (this=0x8c3f398) at libs/ardour/audioengine.cc:431
#5  0xb7ceb78e in sigc::bound_mem_functor0<void, ARDOUR::AudioEngine>::operator() (this=0x8c380a4) at libs/sigc++2/sigc++/functors/mem_fun.h:1781
#6  0xb7ceb7b0 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR::AudioEngine> >::operator() (this=0x8c380a0)
    at libs/sigc++2/sigc++/adaptors/adaptor_trait.h:251
#7  0xb7ceb7dc in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR::AudioEngine>, void>::call_it (rep=0x8c38088)
    at libs/sigc++2/sigc++/functors/slot.h:103
#8  0x083b30c8 in sigc::slot0<void>::operator() (this=0x8c38108) at libs/sigc++2/sigc++/functors/slot.h:440
#9  0xb6c7f943 in call_thread_entry_slot (data=0x8c38108) at libs/glibmm2/glibmm/thread.cc:43
#10 0xb75605af in ?? () from /usr/lib/libglib-2.0.so.0
#11 0x08c38108 in ?? ()
#12 0x08c74e48 in ?? ()
#13 0x00000000 in ?? ()

Thread 13 (Thread -1299276912 (LWP 6419)):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb69978fc in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb75d7123 in ?? () from /usr/lib/libgthread-2.0.so.0
#3  0xb4dd71f8 in ?? ()
#4  0x08b5ecf8 in ?? ()
#5  0xb28e9308 in ?? ()
#6  0xb75ca21c in ?? () from /usr/lib/libglib-2.0.so.0
#7  0xb6996c80 in ?? () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x00000001 in ?? ()
#9  0xb754ce9f in g_queue_peek_tail_link () from /usr/lib/libglib-2.0.so.0
#10 0xb751fe91 in ?? () from /usr/lib/libglib-2.0.so.0
#11 0xb4dd71f8 in ?? ()
#12 0x08b5ecf8 in ?? ()
#13 0xb28e9384 in ?? ()
#14 0xb751ff1f in g_async_queue_timed_pop_unlocked () from /usr/lib/libglib-2.0.so.0
#15 0xb75622c3 in ?? () from /usr/lib/libglib-2.0.so.0
#16 0x08b5ec00 in ?? ()
#17 0xb28e9384 in ?? ()
#18 0xb28e9398 in ?? ()
#19 0x00000001 in ?? ()
#20 0xb6999f31 in __lll_mutex_unlock_wake () from /lib/tls/i686/cmov/libpthread.so.0
#21 0xb6996c98 in _L_mutex_unlock_175 () from /lib/tls/i686/cmov/libpthread.so.0
#22 0xb6996984 in __pthread_mutex_unlock_usercnt () from /lib/tls/i686/cmov/libpthread.so.0
#23 0x00000000 in ?? ()

Thread 3 (Thread -1249510512 (LWP 6407)):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb6997676 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6c7eee5 in Glib::Cond::wait (this=0x8b33d28, mutex=@0xb7f14984) at libs/glibmm2/glibmm/thread.cc:362
#3  0xb7e72f91 in peak_thread_work () at libs/ardour/source_factory.cc:61
#4  0x086db6ad in sigc::pointer_functor0<void>::operator() (this=0x8b3f85c) at libs/sigc++2/sigc++/functors/ptr_fun.h:77
#5  0x086db6c4 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x8b3f858) at libs/sigc++2/sigc++/adaptors/adaptor_trait.h:251
#6  0x086db6e0 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x8b3f840) at libs/sigc++2/sigc++/functors/slot.h:103
#7  0x083b30c8 in sigc::slot0<void>::operator() (this=0x8b3f830) at libs/sigc++2/sigc++/functors/slot.h:440
#8  0xb6c7f943 in call_thread_entry_slot (data=0x8b3f830) at libs/glibmm2/glibmm/thread.cc:43
#9  0xb75605af in ?? () from /usr/lib/libglib-2.0.so.0
#10 0x08b3f830 in ?? ()
#11 0x08b3f868 in ?? ()
#12 0x00000000 in ?? ()

Thread 2 (Thread -1241117808 (LWP 6406)):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb6997676 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6c7eee5 in Glib::Cond::wait (this=0x8b33d28, mutex=@0xb7f14984) at libs/glibmm2/glibmm/thread.cc:362
#3  0xb7e72f91 in peak_thread_work () at libs/ardour/source_factory.cc:61
#4  0x086db6ad in sigc::pointer_functor0<void>::operator() (this=0x8b3f764) at libs/sigc++2/sigc++/functors/ptr_fun.h:77
#5  0x086db6c4 in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x8b3f760) at libs/sigc++2/sigc++/adaptors/adaptor_trait.h:251
#6  0x086db6e0 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x8b3f748) at libs/sigc++2/sigc++/functors/slot.h:103
#7  0x083b30c8 in sigc::slot0<void>::operator() (this=0x8b3ea90) at libs/sigc++2/sigc++/functors/slot.h:440
#8  0xb6c7f943 in call_thread_entry_slot (data=0x8b3ea90) at libs/glibmm2/glibmm/thread.cc:43
#9  0xb75605af in ?? () from /usr/lib/libglib-2.0.so.0
#10 0x08b3ea90 in ?? ()
#11 0x08b3f770 in ?? ()
#12 0xb698e000 in ?? ()
#13 0x00015084 in ?? ()
#14 0xb673da6c in ?? () from /lib/tls/i686/cmov/libc.so.6
#15 0xb69a2ff4 in ?? () from /lib/tls/i686/cmov/libpthread.so.0
#16 0xb6995530 in ?? () from /lib/tls/i686/cmov/libpthread.so.0
#17 0xb69a2ff4 in ?? () from /lib/tls/i686/cmov/libpthread.so.0
#18 0x00000000 in ?? ()

Thread 1 (Thread -1238493504 (LWP 6403)):
#0  0xb699697e in __pthread_mutex_unlock_usercnt () from /lib/tls/i686/cmov/libpthread.so.0
#1  0xb75615d7 in g_static_rw_lock_writer_lock () from /usr/lib/libglib-2.0.so.0
#2  0xb760b9ee in g_type_class_ref () from /usr/lib/libgobject-2.0.so.0
#3  0xb75f25b3 in g_object_new_valist () from /usr/lib/libgobject-2.0.so.0
#4  0xb75f2940 in g_object_new () from /usr/lib/libgobject-2.0.so.0
#5  0xb66a8c33 in ?? () from /usr/lib/libpangoft2-1.0.so.0
#6  0x08cd9be0 in ?? ()
#7  0xb66c6c5b in ?? () from /usr/lib/libpangoft2-1.0.so.0
#8  0xb4df3e50 in ?? ()
#9  0x00000000 in ?? ()
#0  0xb67a7cbc in memcpy () from /lib/tls/i686/cmov/libc.so.6
(gdb)