manta QWork segfault

gistfile1.txt

Thread 5 (Thread 0x7fffe844d700 (LWP 24462)):
#0  0x00007fffe8e8f0b6 in flext_base_multi_d::GetOut (this=0xbf5a70, ix=3)
    at source/flclass.h:195
#1  0x00007fffe8e8f23d in flext_base_multi_d::ToSysAnything (this=0xbf5a70, n=3, 
    s=0x6dc160, argc=48, argv=0x7fffe00008d0) at source/flclass.h:865
#2  0x00007fffe8e937ef in flext_multi_d::MsgBundle::Msg::Send (this=0xbf73a8)
    at source/flqueue.cpp:270
#3  0x00007fffe8e933de in flext_multi_d::MsgBundle::Send (this=0xbf73a0)
    at source/flqueue.cpp:190
#4  0x00007fffe8e9256a in QWork (syslock=true, flushobj=0x0) at source/flqueue.cpp:398
#5  0x00007fffe8e9271b in flext_base_multi_d::QWorker () at source/flqueue.cpp:507
#6  0x00007fffe8e89716 in LaunchHelper (e=0xbf4f30) at source/flthr.cpp:159
#7  0x00007ffff702bd8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007ffff6d7704d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fffe8c4e700 (LWP 24461)):
#0  0x00007ffff7030bac in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fffe8e8a615 in flext_multi_d::ThrCond::Wait (this=0xbfeab0)
    at source/flthr.cpp:702
#2  0x00007fffe8e898be in flext_multi_d::ThrHelper () at source/flthr.cpp:230
#3  0x00007ffff702bd8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007ffff6d7704d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7ffff3a3e700 (LWP 24460)):
#0  0x00007ffff7030bac in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fffea511fc3 in pdp_procqueue_thread ()
   from /usr/lib/pd-extended/extra/pdp/pdp.pd_linux
#2  0x00007ffff702bd8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00007ffff6d7704d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ffff7fcf720 (LWP 24453)):
#0  0x00007ffff6d6f143 in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000000000048123c in sys_domicrosleep (microsec=<value optimized out>, 
    pollem=<value optimized out>) at s_inter.c:189
#2  0x000000000047c69d in m_pollingscheduler () at m_sched.c:513
#3  m_mainloop () at m_sched.c:563
#4  0x000000000047f235 in sys_main (argc=1, argv=<value optimized out>)
    at s_main.c:304
#5  0x00007ffff6cafeff in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x0000000000410e19 in _start ()