GOT A BACKTRACE. WHOOP.

I was going through my normal workflow, dragged the waveform for Channel1, and boom, segfault.

Let me know if I can provide more. Seg Fault happens about 11 lines down and then I got the dump after.

p/04 Big Gigantic - Touch The Sky.mp3)" QSize(300, 300) 
Debug [AnalyserQueue 1]: AnalysisDAO fetched 2 analyses, 2617441 bytes for track 3363 in 27 ms 
Debug [AnalyserQueue 1]: Reading waveform from byte array: allSignalSize 270974 visualSampleRate 441 audioVisualRatio 100 
Debug [AnalyserQueue 1]: Reading waveform from byte array: allSignalSize 3842 visualSampleRate 6.24947 audioVisualRatio 7056.6 
Debug [AnalyserQueue 1]: AnalyserWaveform::loadStored - Stored waveform loaded 
Debug [AnalyserQueue 1]: Track is BpmLocked: Beat calculation will not start 
Debug [AnalyserQueue 1]: Key detection is deactivated 
Debug [AnalyserQueue 1]: Skipping track analysis because no analyzer initialized. 
[Thread 0x7ffee4cde700 (LWP 3852) exited]
Debug [Main]: Committing transaction on "qt_sql_default_connection" result: true 

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffeedffe700 (LWP 3848)]
soundtouch::InterpolateCubic::transposeStereo (this=0x1f54eb0, 
    pdest=<optimized out>, psrc=0x7ffee100e160, srcSamples=@0x7ffeedffd2ac: 1000)
    at lib/soundtouch-1.8.0/InterpolateCubic.cpp:139
139	        pdest[2*i+1] = (SAMPLETYPE)out1;
(gdb) thread apply all bt

Thread 27 (Thread 0x7ffeedffe700 (LWP 3848)):
#0  soundtouch::InterpolateCubic::transposeStereo (this=0x1f54eb0, 
    pdest=<optimized out>, psrc=0x7ffee100e160, srcSamples=@0x7ffeedffd2ac: 1000)
    at lib/soundtouch-1.8.0/InterpolateCubic.cpp:139
#1  0x00000000004ae7b6 in soundtouch::TransposerBase::transpose (this=0x1f54eb0, 
    dest=..., src=...) at lib/soundtouch-1.8.0/RateTransposer.cpp:240
#2  0x00000000004aedaf in processSamples (nSamples=<optimized out>, 
    src=<optimized out>, this=<optimized out>)
    at lib/soundtouch-1.8.0/RateTransposer.cpp:157
#3  soundtouch::RateTransposer::putSamples (this=0x1f51d30, 
    samples=0x7ffee1047008, nSamples=3774931296)
    at lib/soundtouch-1.8.0/RateTransposer.cpp:123
#4  0x00000000004af051 in soundtouch::SoundTouch::putSamples (this=0x1f51ce0, 
    samples=<optimized out>, nSamples=<optimized out>)
    at lib/soundtouch-1.8.0/SoundTouch.cpp:325
#5  0x000000000081b3f2 in EngineBufferScaleST::getScaled (this=0x1f51bd0, 
    buf_size=2048) at src/engine/enginebufferscalest.cpp:152
#6  0x000000000080f582 in readToCrossfadeBuffer (iBufferSize=2048, this=0x1e442b0)
    at src/engine/enginebuffer.cpp:444
#7  EngineBuffer::enableIndependentPitchTempoScaling (this=this@entry=0x1e442b0, 
    bEnable=bEnable@entry=false, iBufferSize=iBufferSize@entry=2048)
    at src/engine/enginebuffer.cpp:375
#8  0x0000000000816d3c in EngineBuffer::process (this=0x1e442b0, 
    pOutput=0x7fffcd4d3010, iBufferSize=2048) at src/engine/enginebuffer.cpp:839
#9  0x000000000081cc69 in EngineDeck::process (this=0x1e20d30, 
    pOut=0x7fffcd4d3010, iBufferSize=2048) at src/engine/enginedeck.cpp:90
#10 0x0000000000832fa5 in EngineMaster::processChannels (this=this@entry=
    0x13efdb0, iBufferSize=iBufferSize@entry=2048)
    at src/engine/enginemaster.cpp:332
#11 0x0000000000837791 in EngineMaster::process (this=0x13efdb0, 
    iBufferSize=iBufferSize@entry=2048) at src/engine/enginemaster.cpp:364
#12 0x0000000000a93dbb in SoundManager::onDeviceOutputCallback (
    this=<optimized out>, iFramesPerBuffer=iFramesPerBuffer@entry=1024)
    at src/soundmanager.cpp:483
#13 0x0000000000a8dceb in SoundDevicePortAudio::callbackProcessClkRef (
    this=0x1d250d0, framesPerBuffer=1024, out=0x1a1d7dc0, in=<optimized out>, 
    timeInfo=<optimized out>, statusFlags=0) at src/sounddeviceportaudio.cpp:834
#14 0x00007ffff7bb3e63 in ?? () from /usr/lib/x86_64-linux-gnu/libportaudio.so.2
#15 0x00007ffff7bb5e20 in ?? () from /usr/lib/x86_64-linux-gnu/libportaudio.so.2
#16 0x00007ffff7bbe66e in ?? () from /usr/lib/x86_64-linux-gnu/libportaudio.so.2
#17 0x00007ffff31bc182 in start_thread (arg=0x7ffeedffe700)
    at pthread_create.c:312
#18 0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 24 (Thread 0x7ffeecbec700 (LWP 3833)):
#0  0x00007ffff1a6c12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffff0256fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff02570ec in g_main_context_iteration ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff552f7be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007ffff55010af in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff55013a5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
    () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007ffff53fdc5f in QThread::exec() ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007ffff54e2823 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007ffff31bc182 in start_thread (arg=0x7ffeecbec700)
    at pthread_create.c:312
#10 0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 23 (Thread 0x7ffeed7fd700 (LWP 3832)):
#0  0x00007ffff1a6c12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffff0256fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff02570ec in g_main_context_iteration ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff552f7be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007ffff55010af in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff55013a5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
    () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007ffff53fdc5f in QThread::exec() ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007ffff54e2823 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007ffff31bc182 in start_thread (arg=0x7ffeed7fd700)
    at pthread_create.c:312
#10 0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 21 (Thread 0x7ffef4dbe700 (LWP 3830)):
#0  0x00007ffff1a6c12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffff0256fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff02570ec in g_main_context_iteration ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff552f7a1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007ffff55010af in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff55013a5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
    () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007ffff53fdc5f in QThread::exec() ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00000000009b1a8d in LibraryScanner::run (this=0xf340f30)
    at src/library/scanner/libraryscanner.cpp:166
#8  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007ffff31bc182 in start_thread (arg=0x7ffef4dbe700)
    at pthread_create.c:312
#10 0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 20 (Thread 0x7fff7d106700 (LWP 3829)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff59efffb in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007ffff59f0039 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007ffff31bc182 in start_thread (arg=0x7fff7d106700)
    at pthread_create.c:312
#4  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 19 (Thread 0x7fff91ffe700 (LWP 3828)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007ffff53fef4a in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007ffff53ff805 in QThread::usleep(unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x0000000000b383fc in VSyncThread::run (this=0x31a90b0)
    at src/waveform/vsyncthread.cpp:90
#4  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff31bc182 in start_thread (arg=0x7fff91ffe700)
    at pthread_create.c:312
#6  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 18 (Thread 0x7fff997fd700 (LWP 3827)):
#0  0x00007ffff1a6c12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffff0256fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff02570ec in g_main_context_iteration ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff552f7a1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007ffff55010af in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff55013a5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
    () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007ffff53fdc5f in QThread::exec() ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007ffff31bc182 in start_thread (arg=0x7fff997fd700)
    at pthread_create.c:312
#9  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 17 (Thread 0x7fff99ffe700 (LWP 3826)):
#0  0x00007ffff1a6c12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffff2da3248 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007ffff31bc182 in start_thread (arg=0x7fff99ffe700)
    at pthread_create.c:312
#3  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 16 (Thread 0x7fffa0def700 (LWP 3825)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00000000004c4f7e in AnalyserQueue::dequeueNextBlocking (this=this@entry=
    0x3092730) at src/analyserqueue.cpp:121
#3  0x00000000004c749a in AnalyserQueue::run (this=0x3092730)
    at src/analyserqueue.cpp:279
#4  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff31bc182 in start_thread (arg=0x7fffa0def700)
    at pthread_create.c:312
#6  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 15 (Thread 0x7fffa15f0700 (LWP 3824)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00000000008d72ba in BrowseThread::run (this=0x2f68fe0)
    at src/library/browse/browsethread.cpp:79
#3  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007ffff31bc182 in start_thread (arg=0x7fffa15f0700)
    at pthread_create.c:312
#5  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 14 (Thread 0x7fffa1ffe700 (LWP 3823)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007ffff53fc95b in QSemaphore::acquire(int) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00000000004e4b31 in CachingReaderWorker::run (this=0x2cb6630)
    at src/cachingreaderworker.cpp:118
#4  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff31bc182 in start_thread (arg=0x7fffa1ffe700)
    at pthread_create.c:312
#6  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 13 (Thread 0x7fffa9afd700 (LWP 3822)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007ffff53fc95b in QSemaphore::acquire(int) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00000000004e4b31 in CachingReaderWorker::run (this=0x2a953d0)
    at src/cachingreaderworker.cpp:118
#4  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff31bc182 in start_thread (arg=0x7fffa9afd700)
    at pthread_create.c:312
#6  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 12 (Thread 0x7fffb0f86700 (LWP 3821)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007ffff53fc95b in QSemaphore::acquire(int) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00000000004e4b31 in CachingReaderWorker::run (this=0x2874240)
    at src/cachingreaderworker.cpp:118
#4  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff31bc182 in start_thread (arg=0x7fffb0f86700)
    at pthread_create.c:312
#6  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 11 (Thread 0x7fffb1ffe700 (LWP 3820)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007ffff53fc95b in QSemaphore::acquire(int) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00000000004e4b31 in CachingReaderWorker::run (this=0x2652dc0)
    at src/cachingreaderworker.cpp:118
#4  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff31bc182 in start_thread (arg=0x7fffb1ffe700)
    at pthread_create.c:312
#6  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 10 (Thread 0x7fffc17ea700 (LWP 3819)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007ffff53fc95b in QSemaphore::acquire(int) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00000000004e4b31 in CachingReaderWorker::run (this=0x250b010)
    at src/cachingreaderworker.cpp:118
#4  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff31bc182 in start_thread (arg=0x7fffc17ea700)
    at pthread_create.c:312
#6  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 9 (Thread 0x7fffccd5d700 (LWP 3818)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007ffff53fc95b in QSemaphore::acquire(int) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00000000004e4b31 in CachingReaderWorker::run (this=0x21cb500)
    at src/cachingreaderworker.cpp:118
#4  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff31bc182 in start_thread (arg=0x7fffccd5d700)
    at pthread_create.c:312
#6  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7fffd4f44700 (LWP 3817)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007ffff53fc95b in QSemaphore::acquire(int) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00000000004e4b31 in CachingReaderWorker::run (this=0x1e500c0)
    at src/cachingreaderworker.cpp:118
#4  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ffff31bc182 in start_thread (arg=0x7fffd4f44700)
    at pthread_create.c:312
#6  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7fffdd17b700 (LWP 3813)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x000000000085d395 in EngineSideChain::run (this=0x13ed5d0)
    at src/engine/sidechain/enginesidechain.cpp:104
#3  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007ffff31bc182 in start_thread (arg=0x7fffdd17b700)
    at pthread_create.c:312
#5  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7fffddd6b700 (LWP 3812)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x000000000083ef4b in EngineWorkerScheduler::run (this=0x13b4650)
    at src/engine/engineworkerscheduler.cpp:54
#3  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007ffff31bc182 in start_thread (arg=0x7fffddd6b700)
    at pthread_create.c:312
#5  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fffde56c700 (LWP 3811)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff5400816 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x0000000000afe436 in StatsManager::run (this=0x137fa70)
    at src/util/statsmanager.cpp:238
#3  0x00007ffff540032f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007ffff31bc182 in start_thread (arg=0x7fffde56c700)
    at pthread_create.c:312
#5  0x00007ffff1a7947d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7ffff7fa7800 (LWP 3810)):
#0  0x00007ffff1a6c12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffff0256fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff02570ec in g_main_context_iteration ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff552f7a1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007ffff5f7cbb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#5  0x00007ffff55010af in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007ffff55013a5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
    () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007ffff5506b79 in QCoreApplication::exec() ()
   from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x0000000000480583 in main (argc=6, argv=<optimized out>) at src/main.cpp:350