.
Thread 3 (process 6200):
#0  0xb7fc7430 in __kernel_vsyscall ()
#1  0xb72900e5 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb72a778f in mb_thread_func (arg=0x0) at messagebuffer.c:70
No locals.
#3  0xb728c4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#4  0xb70d949e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
.
Thread 2 (process 6201):
#0  0xb7fc7430 in __kernel_vsyscall ()
#1  0xb72938f6 in nanosleep () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7853718 in wxHandleFatalExceptions (doit=16)
    at /usr/include/bits/string3.h:85
	act = {__sigaction_handler = {sa_handler = 0xffffffff, 
    sa_sigaction = 0xffffffff}, sa_mask = {__val = {3086897140, 3078054800, 
      3083918136, 3051971184, 3086835323, 2897671269, 1070805461, 0, 
      1072693248, 0, 3078246720, 3072907726, 3078000640, 1331684, 5, 
      3072882760, 3079331828, 0, 164189440, 3072913500, 3086858672, 
      3051971256, 3079331828, 0, 3072932086, 0, 3078960920, 3051971244, 0, 
      3051971240, 3078929997, 164186328}}, sa_flags = -1215635468, 
  sa_restorer = 0xb5e962b8}
	ok = <value optimized out>
	s_savedHandlers = false
	s_handlerFPE = {__sigaction_handler = {sa_handler = 0, 
    sa_sigaction = 0}, sa_mask = {__val = {0 <repeats 32 times>}}, 
  sa_flags = 0, sa_restorer = 0}
	s_handlerILL = {__sigaction_handler = {sa_handler = 0, 
    sa_sigaction = 0}, sa_mask = {__val = {0 <repeats 32 times>}}, 
  sa_flags = 0, sa_restorer = 0}
	s_handlerBUS = {__sigaction_handler = {sa_handler = 0, 
    sa_sigaction = 0}, sa_mask = {__val = {0 <repeats 32 times>}}, 
  sa_flags = 0, sa_restorer = 0}
	s_handlerSEGV = {__sigaction_handler = {sa_handler = 0, 
    sa_sigaction = 0}, sa_mask = {__val = {0 <repeats 32 times>}}, 
  sa_flags = 0, sa_restorer = 0}
#3  0xb7853741 in wxHandleFatalExceptions (doit=10)
    at ../src/unix/utilsunx.cpp:1137
	act = {__sigaction_handler = {sa_handler = 0xb5e96270, 
    sa_sigaction = 0xb5e96270}, sa_mask = {__val = {3086835323, 2897671269, 
      1070805461, 0, 1072693248, 0, 3078246720, 3072907726, 3078000640, 
      1331684, 5, 3072882760, 3079331828, 0, 164189440, 3072913500, 
      3086858672, 3051971256, 3079331828, 0, 3072932086, 0, 3078960920, 
      3051971244, 0, 3051971240, 3078929997, 164186328, 3079331828, 
      3051971256, 0, 10000000}}, sa_flags = -1215635468, 
  sa_restorer = 0xb5e962c8}
	ok = <value optimized out>
	s_savedHandlers = false
	s_handlerFPE = {__sigaction_handler = {sa_handler = 0, 
    sa_sigaction = 0}, sa_mask = {__val = {0 <repeats 32 times>}}, 
  sa_flags = 0, sa_restorer = 0}
	s_handlerILL = {__sigaction_handler = {sa_handler = 0, 
    sa_sigaction = 0}, sa_mask = {__val = {0 <repeats 32 times>}}, 
  sa_flags = 0, sa_restorer = 0}
	s_handlerBUS = {__sigaction_handler = {sa_handler = 0, 
    sa_sigaction = 0}, sa_mask = {__val = {0 <repeats 32 times>}}, 
  sa_flags = 0, sa_restorer = 0}
	s_handlerSEGV = {__sigaction_handler = {sa_handler = 0, 
    sa_sigaction = 0}, sa_mask = {__val = {0 <repeats 32 times>}}, 
  sa_flags = 0, sa_restorer = 0}
#4  0xb784b8ed in wxConditionInternal::WaitTimeout (this=0xa, 
    milliseconds=3079331828) at ../include/wx/longlong.h:278
	tspec = {tv_sec = 10000, tv_nsec = -1215635468}
	err = -1215635468
#5  0x08087777 in AudioThread::Entry (this=0xb784b8ed) at AudioIO.cpp:1828
No locals.
#6  0xb784d393 in wxThreadModule::OnInit (this=0x9c954f8)
    at ../src/unix/threadpsx.cpp:1631
	rc = <value optimized out>
#7  0xb784d40d in ?? () from /usr/lib/libwx_baseu-2.8.so.0
No locals.
#8  0xb728c4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9  0xb70d949e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
.
Thread 1 (process 6195):
#0  0xb728d9e0 in pthread_mutex_lock ()
   from /lib/tls/i686/cmov/libpthread.so.0
#1  0xb784bf5d in ?? () from /usr/lib/libwx_baseu-2.8.so.0
No locals.
#2  0xb784bfa8 in wxThread::Pause (this=0xa448010)
    at ../include/wx/thread.h:272
No locals.
#3  0x082225ba in ODWaveTrackTaskQueue::ContainsWaveTrack (this=0xa447ff8, 
    track=0xa3b97b8) at ondemand/ODWaveTrackTaskQueue.cpp:80
No locals.
#4  0x0821f551 in ODManager::RemoveWaveTrack (this=0xa27de68, track=0xa3b97b8)
    at ondemand/ODManager.cpp:373
	i = 0
#5  0x08189fb5 in ~WaveTrack (this=0xa3b97b8) at WaveTrack.cpp:147
No locals.
#6  0x08149a34 in TrackList::Clear (this=0x9acc778, deleteTracks=true)
    at Track.cpp:333
No locals.
#7  0x08105ebf in AudacityProject::DeleteClipboard () at Project.cpp:3132
No locals.
#8  0x08081c2d in QuitAudacity (bForce=false) at AudacityApp.cpp:293
	lw = (class wxLogWindow *) 0x9b72820
#9  0x08081c92 in QuitAudacity () at AudacityApp.cpp:306
No locals.
#10 0x081137ce in AudacityProject::OnCloseWindow (this=0x9cc8bc8, 
    event=@0xbfee4334) at Project.cpp:1758
	quitOnClose = true
	iter2 = {l = 0x9dcc128, cur = 0xa0f2188}
	bHasTracks = <value optimized out>
#11 0xb77af2a1 in wxWakeUpIdle () at ../src/common/appbase.cpp:643
No locals.
#12 0xbfee4334 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)