[Jami] nightly F28 segfaults

[Josh]

$ rpm -q ring
ring-20190602.3.f44a0ac-1.fc28.x86_64
$ gdb jami-gnome
GNU gdb (GDB) Fedora 8.1.1-4.fc28
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Reading symbols from jami-gnome...Reading symbols from 
/usr/lib/debug/usr/bin/jami-gnome-20190602.3.f44a0ac-1.fc28.x86_64.debug...done.
done.
(gdb) run
Starting program: /usr/bin/jami-gnome
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7fffd9bfd700 (LWP 13964)]
[New Thread 0x7fffd93fc700 (LWP 13965)]
[New Thread 0x7fffd8bfb700 (LWP 13966)]
** Message: 09:30:52.747: Jami GNOME client version: 
79a3fac84dbd0110279d59ff0f3a42e4f59e992c
** Message: 09:30:52.747: git ref: unknown
[New Thread 0x7fffb7fff700 (LWP 13967)]
[New Thread 0x7fffb77fe700 (LWP 13968)]
[New Thread 0x7fffb6ffd700 (LWP 13969)]
[New Thread 0x7fffb67fc700 (LWP 13970)]
[New Thread 0x7fffb5ffb700 (LWP 13971)]
[New Thread 0x7fffb57fa700 (LWP 13972)]
[New Thread 0x7fffb4ff9700 (LWP 13973)]
[New Thread 0x7fff97fff700 (LWP 13974)]
[Thread 0x7fff97fff700 (LWP 13974) exited]
[New Thread 0x7fff97fff700 (LWP 13975)]
[New Thread 0x7fff977fe700 (LWP 13976)]
[New Thread 0x7fff96ffd700 (LWP 13977)]
[Thread 0x7fff96ffd700 (LWP 13977) exited]
[New Thread 0x7fff96ffd700 (LWP 13978)]

Thread 1 "jami-gnome" received signal SIGSEGV, Segmentation fault.
__memmove_sse2_unaligned_erms () at 
../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:340
340        VMOVU    (%rsi), %VEC(0)
(gdb) where
#0  __memmove_sse2_unaligned_erms () at 
../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:340
#1  0x00007fffec93f085 in std::char_traits<char>::copy (__n=81, 
__s2=<optimized out>, __s1=<optimized out>)
    at 
/usr/src/debug/gcc-8.3.1-2.fc28.x86_64/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/bits/char_traits.h:352
#2  std::__cxx11::basic_string<char, std::char_traits<char>, 
std::allocator<char> >::_S_copy (__n=81, __s=<optimized out>, 
__d=<optimized out>)
    at 
/usr/src/debug/gcc-8.3.1-2.fc28.x86_64/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/bits/basic_string.h:340
#3  std::__cxx11::basic_string<char, std::char_traits<char>, 
std::allocator<char> >::_M_assign (this=this@entry=0x7fffffffcb70,
    __str=<error reading variable: Cannot create a lazy string with 
address 0x0, and a non-zero length.>)
    at 
/usr/src/debug/gcc-8.3.1-2.fc28.x86_64/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/bits/basic_string.tcc:272
#4  0x00007ffff7ac446b in std::__cxx11::basic_string<char, 
std::char_traits<char>, std::allocator<char> >::assign (__str=..., 
this=0x7fffffffcb70)
    at 
/usr/src/debug/ring-20190602.3.f44a0ac-1.fc28.x86_64/lrc/src/avmodel.cpp:747
#5  std::__cxx11::basic_string<char, std::char_traits<char>, 
std::allocator<char> >::operator= (__str=..., this=0x7fffffffcb70)
    at /usr/include/c++/8/bits/basic_string.h:695
#6  lrc::AVModelPimpl::getDevice[abi:cxx11](int) const () at 
/usr/src/debug/ring-20190602.3.f44a0ac-1.fc28.x86_64/lrc/src/avmodel.cpp:747
#7  0x00007ffff7ac4552 in lrc::api::AVModel::getInputDevice[abi:cxx11]() 
const (this=<optimized out>)
    at 
/usr/src/debug/ring-20190602.3.f44a0ac-1.fc28.x86_64/lrc/src/avmodel.cpp:334
#8  0x000000000049634e in (anonymous 
namespace)::details::CppImpl::drawAudioDevices (this=0xf1ebf0)
    at 
/usr/src/debug/ring-20190602.3.f44a0ac-1.fc28.x86_64/client-gnome/src/mediasettingsview.cpp:162
#9  0x000000000049600c in (anonymous 
namespace)::details::CppImpl::CppImpl (this=0xf1ebf0, widget=..., 
avModel=...)
    at 
/usr/src/debug/ring-20190602.3.f44a0ac-1.fc28.x86_64/client-gnome/src/mediasettingsview.cpp:128
#10 0x0000000000498b1d in media_settings_view_new (avModel=...) at 
/usr/src/debug/ring-20190602.3.f44a0ac-1.fc28.x86_64/client-gnome/src/mediasettingsview.cpp:485
#11 0x0000000000462c15 in (anonymous namespace)::details::CppImpl::init 
(this=0xdd7bc0)
    at 
/usr/src/debug/ring-20190602.3.f44a0ac-1.fc28.x86_64/client-gnome/src/ringmainwindow.cpp:1076
#12 0x000000000046ce79 in ring_main_window_init (win=0xd048c0) at 
/usr/src/debug/ring-20190602.3.f44a0ac-1.fc28.x86_64/client-gnome/src/ringmainwindow.cpp:2507
#13 0x00007ffff586e1da in g_type_create_instance (type=13926640) at 
gtype.c:1866
#14 0x00007ffff5850878 in g_object_new_internal 
(class=class@entry=0xced000, params=params@entry=0x7fffffffd3d0, 
n_params=n_params@entry=1) at gobject.c:1799
#15 0x00007ffff58527fe in g_object_new_valist (object_type=<optimized 
out>, first_property_name=<optimized out>, 
var_args=var_args@entry=0x7fffffffd520)
    at gobject.c:2122
#16 0x00007ffff5852b5d in g_object_new (object_type=<optimized out>, 
first_property_name=<optimized out>) at gobject.c:1642
#17 0x000000000046d6b0 in ring_main_window_new (app=0x7e2140) at 
/usr/src/debug/ring-20190602.3.f44a0ac-1.fc28.x86_64/client-gnome/src/ringmainwindow.cpp:2600
#18 0x000000000045abfe in ring_client_activate (app=0x7e2140) at 
/usr/src/debug/ring-20190602.3.f44a0ac-1.fc28.x86_64/client-gnome/src/ring_client.cpp:447
#19 0x00007ffff584ac8d in g_closure_invoke (closure=0x7dea50, 
return_value=0x0, n_param_values=1, param_values=0x7fffffffd830, 
invocation_hint=0x7fffffffd7b0)
    at gclosure.c:804
#20 0x00007ffff585da14 in signal_emit_unlocked_R 
(node=node@entry=0x7deaa0, detail=detail@entry=0, 
instance=instance@entry=0x7e2140,
    emission_return=emission_return@entry=0x0, 
instance_and_params=instance_and_params@entry=0x7fffffffd830) at 
gsignal.c:3673
#21 0x00007ffff586730a in g_signal_emit_valist (instance=<optimized 
out>, signal_id=<optimized out>, detail=<optimized out>, 
var_args=var_args@entry=0x7fffffffd9f0)
    at gsignal.c:3391
#22 0x00007ffff5867903 in g_signal_emit 
(instance=instance@entry=0x7e2140, signal_id=<optimized out>, 
detail=detail@entry=0) at gsignal.c:3447
#23 0x00007ffff5b32d13 in g_application_activate 
(application=application@entry=0x7e2140) at gapplication.c:2236
#24 0x00007ffff5b334d8 in g_application_real_local_command_line 
(application=0x7e2140, arguments=0x7fffffffdbf8, 
exit_status=0x7fffffffdbf4) at gapplication.c:1119
#25 0x00007ffff5b3368f in g_application_run (application=0x7e2140, 
argc=<optimized out>, argv=0x7fffffffdd58) at gapplication.c:2439
#26 0x000000000045973b in main (argc=1, argv=0x7fffffffdd58) at 
/usr/src/debug/ring-20190602.3.f44a0ac-1.fc28.x86_64/client-gnome/src/main.cpp:38
(gdb)