Application: smb4k (2.1.1)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 4.19.0-16-amd64 x86_64
Distribution: Debian GNU/Linux 10 (buster)

-- Information about the crash:
If I want to hang them all at once, this happens a lot. If I hang each one individually, it works.

-- Backtrace:
Application: Smb4K (smb4k), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4a74261880 (LWP 1724))]

Thread 7 (Thread 0x7f4a5f7fe700 (LWP 2480)):
#0  0x00007f4a795f6819 in poll () at /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f4a779f0136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a779f04c2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a685f1266 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f4a77a18415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4a794ecfa3 in start_thread () at /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f4a796014cf in clone () at /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7f4a5ffff700 (LWP 2479)):
#0  0x00007f4a795f24ae in read () at /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f4a77a35aa0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a779efc0f in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a779f00e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4a779f025c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4a779f02a1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f4a77a18415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f4a794ecfa3 in start_thread () at /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f4a796014cf in clone () at /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7f4a6a86c700 (LWP 1777)):
#0  0x00007f4a794f300c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f4a6ae07e83 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#2  0x00007f4a6ae07bd7 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#3  0x00007f4a794ecfa3 in start_thread () at /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f4a796014cf in clone () at /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7f4a6bfff700 (LWP 1774)):
#0  0x00007f4a795f6819 in poll () at /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f4a779f0136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a779f025c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a79b08743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4a79ab615b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a79905e76 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a7990fa67 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a794ecfa3 in start_thread () at /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f4a796014cf in clone () at /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f4a71af6700 (LWP 1765)):
#0  0x00007f4a795f2494 in read () at /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f4a77a35aa0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a779efc0f in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a779f00e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4a779f025c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4a79b08743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a79ab615b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a79905e76 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a7895d545 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f4a7990fa67 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f4a794ecfa3 in start_thread () at /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f4a796014cf in clone () at /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f4a7349f700 (LWP 1761)):
#0  0x00007f4a795f6819 in poll () at /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f4a7796fcf7 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f4a7797191a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f4a73e0cd79 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f4a7990fa67 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a794ecfa3 in start_thread () at /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f4a796014cf in clone () at /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f4a74261880 (LWP 1724)):
[KCrash Handler]
#6  0x00007f4a7ae625d4 in Smb4KMounter::unmountShare(QSharedPointer<Smb4KShare> const&, bool, QWidget*) () at /usr/lib/x86_64-linux-gnu/libsmb4kcore.so.5
#7  0x00007f4a7ae62c84 in Smb4KMounter::unmountShares(QList<QSharedPointer<Smb4KShare> > const&, bool, QWidget*) () at /usr/lib/x86_64-linux-gnu/libsmb4kcore.so.5
#8  0x00007f4a7ae645ff in Smb4KMounter::slotAboutToQuit() () at /usr/lib/x86_64-linux-gnu/libsmb4kcore.so.5
#9  0x00007f4a7aeb6bc5 in  () at /usr/lib/x86_64-linux-gnu/libsmb4kcore.so.5
#10 0x00007f4a79ae07f6 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f4a79ab6667 in QCoreApplication::aboutToQuit(QCoreApplication::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f4a79aba829 in QCoreApplicationPrivate::execCleanup() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f4a79abe14b in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x000055b056be17d8 in  ()
#15 0x00007f4a7952c09b in __libc_start_main () at /lib/x86_64-linux-gnu/libc.so.6
#16 0x000055b056be1e0a in _start ()
[Inferior 1 (process 1724) detached]

Reported using DrKonqi