Starting program: /usr/local/bin/ardour 
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 23303)]

Gdk-WARNING **: locale not supported by C library
[New Thread 32769 (LWP 23304)]
[New Thread 16386 (LWP 23305)]
Ardour/GTK 0.510.4 running with libardour 0.810.4
Loading UI configuration file /usr/local/etc/ardour/ardour_ui.rc
Loading system configuration file /usr/local/etc/ardour/ardour_system.rc
Loading user configuration file /root/.ardour/ardour.rc
[New Thread 32771 (LWP 23310)]
[New Thread 49156 (LWP 23311)]
Loading session /home/tommy/prov2 using snapshot Mon May 24 11:27:14 
2004
[New Thread 65541 (LWP 23316)]
[New Thread 81926 (LWP 23317)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 49156 (LWP 23311)]
0x4108a24d in _int_malloc () from /lib/libc.so.6
(gdb) thread apply all bt

Thread 7 (Thread 81926 (LWP 23317)):
#0  0x410e608a in poll () from /lib/libc.so.6
#1  0x085f8bbf in ARDOUR::Session::midi_thread_work() (this=0x89fb628)
    at session_midi.cc:841
#2  0x085f8b27 in ARDOUR::Session::_midi_thread_work(void*) 
(arg=0x89fb628)
    at session_midi.cc:815
#3  0x4128af50 in pthread_start_thread () from /lib/libpthread.so.0
#4  0x4128b052 in pthread_start_thread_event () from 
/lib/libpthread.so.0
#5  0x410ee81a in clone () from /lib/libc.so.6

Thread 6 (Thread 65541 (LWP 23316)):
#0  0x4128d6d4 in __pthread_sigsuspend () from /lib/libpthread.so.0
#1  0x4128d518 in __pthread_wait_for_restart_signal ()
   from /lib/libpthread.so.0
#2  0x41289f3b in pthread_cond_wait@GLIBC_2.0 () from 
/lib/libpthread.so.0
#3  0x085d3483 in ARDOUR::Session::butler_thread_work() (this=0x89fb628)
    at session_butler.cc:292
#4  0x085d2c5d in ARDOUR::Session::_butler_thread_work(void*) 
(arg=0x89fb628)
    at session_butler.cc:148
#5  0x4128af50 in pthread_start_thread () from /lib/libpthread.so.0
#6  0x4128b052 in pthread_start_thread_event () from 
/lib/libpthread.so.0
#7  0x410ee81a in clone () from /lib/libc.so.6

Thread 5 (Thread 49156 (LWP 23311)):
#0  0x4108a24d in _int_malloc () from /lib/libc.so.6
#1  0x41089291 in malloc () from /lib/libc.so.6
#2  0x4108def0 in strdup () from /lib/libc.so.6
#3  0x084ae11d in Gtkmmext::UI::receive(Transmitter::Channel, char 
const*) (
    this=0x879cdc0, chn=Error, 
    str=0x8c0bcd4 "warning, leftover frames overflowed, glitches might 
occur in output") at gtk_ui.cc:411
#4  0x08637ad6 in SigC::ObjectSlot2_<void, Transmitter::Channel, char 
const*, Receiver>::callback(void*, Transmitter::Channel, char const*) 
(d=0x89ec534, 
    p1=Error, 
    p2=0x8c0bcd4 "warning, leftover frames overflowed, glitches might 
occur in output") at object_slot.h:250
#5  0x08638b6d in SigC::Callback2<void, Transmitter::Channel, char 
const*>::call(Transmitter::Channel const&, char const* const&) 
(this=0x89ec534, 
    p1=@0x878c7a4, p2=@0x433b8610) at slot.h:456
#6  0x08638b43 in SigC::Signal2<void, Transmitter::Channel, char const*, 
SigC::Marshal<void> >::emit(Transmitter::Channel const&, char const* 
const&) (
    this=0x878c7b4, p1=@0x878c7a4, p2=@0x433b8610) at basic_signal.h:471
#7  0x08638a81 in SigC::Signal2<void, Transmitter::Channel, char const*, 
SigC::Marshal<void> >::operator()(Transmitter::Channel const&, char 
const* const&) (
    this=0x878c7b4, p1=@0x878c7a4, p2=@0x433b8610) at basic_signal.h:449
#8  0x086388ba in Transmitter::deliver() (this=0x878c740) at 
transmitter.cc:74
#9  0x0822f1d2 in endmsg (ostr=@0x878c748) at transmitter.h:95
#10 0x414547af in std::ostream::operator<<(std::ostream& 
(*)(std::ostream&)) ()
   from /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.2/libstdc++.so.5
#11 0x085f4c20 in ARDOUR::AudioExportSpecification::process(unsigned) (
    this=0x8bc53f4, nframes=512) at session_export.cc:281
#12 0x085f5961 in ARDOUR::Session::process_export(unsigned, 
ARDOUR::AudioExportSpecification*) (this=0x89fb628, nframes=512, 
spec=0x8bc53f4)
    at session_export.cc:529
#13 0x085f5fc8 in SigC::ObjectSlot2_<int, unsigned, 
ARDOUR::AudioExportSpecification*, ARDOUR::Session>::callback(void*, 
unsigned, ARDOUR::AudioExportSpecification*) (d=0x89f0530, p1=512, 
p2=0x8bc53f4) at object_slot.h:250
#14 0x085f621b in SigC::Callback2<int, unsigned, 
ARDOUR::AudioExportSpecification*>::operator()(unsigned const&, 
ARDOUR::AudioExportSpecification* const&) (
    this=0x89f0530, p1=@0x433b8958, p2=@0x89f0540) at slot.h:458
#15 0x085f60c6 in SigC::AdaptorBindSlot1_1<int, unsigned, 
ARDOUR::AudioExportSpecification*>::callback(void*, unsigned) 
(d=0x8c836c4, p1=512) at bind.h:192
#16 0x0852e3b6 in SigC::Callback1<int, unsigned>::call(unsigned const&) 
(
    this=0x8c836c4, p1=@0x433b8a38) at slot.h:358
#17 0x0852de58 in SigC::Signal1<int, unsigned, SigC::Marshal<int> 
>::emit(unsigned const&) (this=0x88453cc, p1=@0x433b8a38) at 
basic_signal.h:269
#18 0x0852d7e0 in SigC::Signal1<int, unsigned, SigC::Marshal<int> 
>::operator()(unsigned const&) (this=0x88453cc, p1=@0x433b8a38) at 
basic_signal.h:246
#19 0x0852c2ef in ARDOUR::AudioEngine::process_callback(unsigned) (
    this=0x88453c8, nframes=512) at audioengine.cc:281
#20 0x0852c09a in ARDOUR::AudioEngine::_process_callback(unsigned, 
void*) (
    nframes=512, arg=0x88453c8) at audioengine.cc:185
#21 0x4001c33a in jack_port_type_size () from /usr/lib/libjack.so.0
#22 0x00000200 in ?? ()
Previous frame inner to this frame (corrupt stack?)