Backend crash

[New Thread 0x7ffcf4448700 (LWP 30571)]

(process:3217): GLib-ERROR **: Creating pipes for GWakeup: Too many open files


Program received signal SIGTRAP, Trace/breakpoint trap.
[Switching to Thread 0x7ffcf4448700 (LWP 30571)]
0x00007fffe75278e0 in g_logv () from /lib/libglib-2.0.so.0
(gdb) bt
#0  0x00007fffe75278e0 in g_logv () from /lib/libglib-2.0.so.0
#1  0x00007fffe7527b1f in g_log () from /lib/libglib-2.0.so.0
#2  0x00007fffe7563802 in ?? () from /lib/libglib-2.0.so.0
#3  0x00007fffe751ea13 in g_main_context_new () from /lib/libglib-2.0.so.0
#4  0x00007fffec3aae99 in QEventDispatcherGlibPrivate::QEventDispatcherGlibPrivate(_GMainContext*) () from /lib/libQt5Core.so.5
#5  0x00007fffec3aaf71 in QEventDispatcherGlib::QEventDispatcherGlib(QObject*)
    () from /lib/libQt5Core.so.5
#6  0x00007fffec172ac0 in ?? () from /lib/libQt5Core.so.5
#7  0x00007fffec173a28 in ?? () from /lib/libQt5Core.so.5
#8  0x00007fffebeb8424 in start_thread () from /lib/libpthread.so.0
#9  0x00007fffeb35acbd in clone () from /lib/libc.so.6
(gdb)