#0  __pthread_kill_implementation
    (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0)
    at pthread_kill.c:44
#1  0x00007fffefa8e3d3 in __pthread_kill_internal
    (signo=6, threadid=<optimized out>) at pthread_kill.c:78
#2  0x00007fffefa3e838 in __GI_raise (sig=sig@entry=6)
    at ../sysdeps/posix/raise.c:26
#3  0x00007fffefa28535 in __GI_abort () at abort.c:79
#4  0x00007fffefed2002 in std::__glibcxx_assert_fail(char const*, int, char const*, char const*)
    (file=file@entry=0x7ffff73cdfa0 "/usr/include/c++/12.1.0/bits/stl_vector.h", line=line@entry=1123, function=function@entry=0x7ffff73d0a08 "std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = float; _Alloc = std::allocator<float>; reference = float&; size_type = long unsigned int]", condition=condition@entry=0x7ffff73cde84 "__n < this->size()")
    at /usr/src/debug/gcc/libstdc++-v3/src/c++11/debug.cc:60
#5  0x00007ffff713f171 in std::vector<float, std::allocator<float> >::operator[](unsigned long) (this=<optimized out>, __n=<optimized out>)
    at /usr/include/c++/12.1.0/bits/stl_vector.h:1121
#6  std::vector<float, std::allocator<float> >::operator[](unsigned long)
    (this=<optimized out>, __n=<optimized out>)
    at /usr/include/c++/12.1.0/bits/stl_vector.h:1121
#7  AudioFilter::sinc_blackman(float, bool) const
    (this=0x555555859ea8, cutoff=<optimized out>, invert=<optimized out>)
    at ../src/lib/audio_filter.cc:44
#8  0x00007ffff713f4c3 in BandPassAudioFilter::BandPassAudioFilter(float, float, float)
    (this=this@entry=0x555555859ea8, transition_bandwidth=transition_bandwidth@entry=0.0199999996, lower=lower@entry=0.0395833328, higher=higher@entry=0.100000001)
    at ../src/lib/audio_filter.cc:142
#9  0x00007ffff738353a in UpmixerA::UpmixerA(int)
    (this=this@entry=0x555555859ea0, sampling_rate=sampling_rate@entry=48000)
    at ../src/lib/upmixer_a.cc:37
#10 0x00007ffff7164b09 in AudioProcessor::setup_audio_processors() ()
    at ../src/lib/audio_processor.cc:43
#11 0x00007ffff738831e in dcpomatic_setup() () at ../src/lib/util.cc:423
#12 0x00005555555e1d7b in App::OnInit() (this=0x555555814420)
    at ../src/tools/dcpomatic.cc:1632
#13 0x00007ffff030efe2 in wxEntry(int&, wchar_t**)
    (argc=<optimized out>, argv=<optimized out>)
    at /usr/src/debug/wxWidgets-3.2.0/src/common/init.cpp:487
#14 0x00005555555a6792 in main(int, char**)
    (argc=<optimized out>, argv=<optimized out>) at ../src/tools/dcpomatic.cc:1915