During robustness tests, I obtained a crash when randomly killing the local indiserver while the Scheduler is running jobs. In that situation, a SIGPIPE fires while writing commands through the server pipe.

Thread 1 "kstars" received signal SIGPIPE, Broken pipe.
0x00007ffff14f2cc0 in __libc_write (fd=52, buf=buf@entry=0x7fffffffc9f0, nbytes=31) at ../sysdeps/unix/sysv/linux/write.c:26
26	../sysdeps/unix/sysv/linux/write.c: No such file or directory.
(gdb) bt
#0  0x00007ffff14f2cc0 in __libc_write (fd=52, buf=buf@entry=0x7fffffffc9f0, nbytes=31) at ../sysdeps/unix/sysv/linux/write.c:26
#1  0x0000555555f758c3 in INDI::BaseClient::sendString (this=this@entry=0x55555b526290, fmt=fmt@entry=0x5555560fb0dc "  device='%s'\n") at /home/tallfurryman/dev/indi/libindi/libs/indibase/baseclient.cpp:1035
#2  0x0000555555f75b14 in INDI::BaseClient::sendNewNumber (this=0x55555b526290, nvp=0x7fffb00488d0) at /home/tallfurryman/dev/indi/libindi/libs/indibase/baseclient.cpp:772
#3  0x0000555555b26c0d in Ekos::Mount::save (this=0x555559b2b150) at /home/tallfurryman/dev/kstars/kstars/ekos/mount/mount.cpp:626
#4  0x0000555555b2826f in Ekos::Mount::setTelescopeInfo (this=0x555559b2b150, primaryFocalLength=0, primaryAperture=0, guideFocalLength=0, guideAperture=0) at /home/tallfurryman/dev/kstars/kstars/ekos/mount/mount.cpp:867
#5  0x00005555559cb2f1 in EkosManager::setTelescope (this=0x555558ec5b30, scopeDevice=0x55555afb51f0) at /home/tallfurryman/dev/kstars/kstars/ekos/ekosmanager.cpp:1130
#6  0x00005555558e36b8 in EkosManager::qt_static_metacall (_o=0x555558ec5b30, _c=QMetaObject::InvokeMetaMethod, _id=22, _a=0x7fffffffd5f0)
    at /home/tallfurryman/dev/kstars_build/kstars/KStarsLib_autogen/CI6HWGPKSW/moc_ekosmanager.cpp:345
#7  0x00007ffff24268e5 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00005555558f37ba in INDIListener::newTelescope (this=0x55555938aa70, _t1=0x55555afb51f0) at /home/tallfurryman/dev/kstars_build/kstars/KStarsLib_autogen/FRI4DANIHA/moc_indilistener.cpp:399
#9  0x00005555559698ad in INDIListener::registerProperty (this=0x55555938aa70, prop=0x7fffb0085420) at /home/tallfurryman/dev/kstars/kstars/indi/indilistener.cpp:255
#10 0x00005555558f2dd2 in INDIListener::qt_static_metacall (_o=0x55555938aa70, _c=QMetaObject::InvokeMetaMethod, _id=11, _a=0x7fff50be6320)
    at /home/tallfurryman/dev/kstars_build/kstars/KStarsLib_autogen/FRI4DANIHA/moc_indilistener.cpp:182
#11 0x00007ffff2427452 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007ffff387946c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007ffff3880d34 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007ffff23f7de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007ffff23fa55d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007ffff2450e53 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fffec221fb7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fffec2221f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fffec22227c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007ffff245047f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007ffff23f5e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007ffff23feda4 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x000055555563c8df in main (argc=1, argv=0x7fffffffe038) at /home/tallfurryman/dev/kstars/kstars/main.cpp:331