I have a unmounted partition on my HD which is a hidden entry in dolphin

when I need access it I right click and chose show hidden places, then I click the partition to get mounted, then chose the dir and I copy or past a file, usually small ones

between click to mount and copy or past kdeinit5 crash report pops up, it happens every time not occasional 

it is plasma 5.14, kde 5.8, qt 5.15.2

while it says it might not help very much I past the crash report here:


Application: kdeinit5 (kdeinit5), signal: Segmentation fault

[New LWP 51059]
[New LWP 51060]
[New LWP 51061]
[New LWP 51062]
[New LWP 51063]
[New LWP 51064]
[New LWP 51065]
[New LWP 51066]
[New LWP 51067]
[New LWP 51068]
[New LWP 51069]
[New LWP 51070]
[New LWP 51071]
[New LWP 51072]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f5b3c8d9aff in __GI___poll (fds=0x7fffddc84728, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f5b39403cc0 (LWP 51058))]

Thread 15 (Thread 0x7f5af7fff700 (LWP 51072)):
#0  0x00007f5b3c8d9aff in __GI___poll (fds=0x7f5aec004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f5b3b32736e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5b3b3274a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5b3ccc3ffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5b3cc681eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5b3ca82a52 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5b388aef4b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f5b3ca83bec in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f5b20ff9700 (LWP 51071)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5b300059e8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5b30005998, cond=0x7f5b300059c0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f5b300059c0, mutex=0x7f5b30005998) at pthread_cond_wait.c:638
#3  0x00007f5b2ed5eb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2ed5e75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f5b217fa700 (LWP 51070)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5b300059e8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5b30005998, cond=0x7f5b300059c0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f5b300059c0, mutex=0x7f5b30005998) at pthread_cond_wait.c:638
#3  0x00007f5b2ed5eb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2ed5e75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f5b21ffb700 (LWP 51069)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5b300059e8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5b30005998, cond=0x7f5b300059c0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f5b300059c0, mutex=0x7f5b30005998) at pthread_cond_wait.c:638
#3  0x00007f5b2ed5eb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2ed5e75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f5b227fc700 (LWP 51068)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5b300059e8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5b30005998, cond=0x7f5b300059c0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f5b300059c0, mutex=0x7f5b30005998) at pthread_cond_wait.c:638
#3  0x00007f5b2ed5eb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2ed5e75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f5b22ffd700 (LWP 51067)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555bde177380) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555bde177330, cond=0x555bde177358) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555bde177358, mutex=0x555bde177330) at pthread_cond_wait.c:638
#3  0x00007f5b2f0029cb in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2f00294b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f5b237fe700 (LWP 51066)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555bde177380) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555bde177330, cond=0x555bde177358) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555bde177358, mutex=0x555bde177330) at pthread_cond_wait.c:638
#3  0x00007f5b2f0029cb in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2f00294b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f5b288fd700 (LWP 51065)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555bde177380) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555bde177330, cond=0x555bde177358) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555bde177358, mutex=0x555bde177330) at pthread_cond_wait.c:638
#3  0x00007f5b2f0029cb in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2f00294b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f5b290fe700 (LWP 51064)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555bde177380) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555bde177330, cond=0x555bde177358) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555bde177358, mutex=0x555bde177330) at pthread_cond_wait.c:638
#3  0x00007f5b2f0029cb in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2f00294b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f5b298ff700 (LWP 51063)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555bde1371c8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555bde137178, cond=0x555bde1371a0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555bde1371a0, mutex=0x555bde137178) at pthread_cond_wait.c:638
#3  0x00007f5b2f005603 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2f00546b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f5b23fff700 (LWP 51062)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555bde137068) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555bde137018, cond=0x555bde137040) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555bde137040, mutex=0x555bde137018) at pthread_cond_wait.c:638
#3  0x00007f5b2f005603 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2f00546b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f5b34bc8700 (LWP 51061)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555bde136f08) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555bde136eb8, cond=0x555bde136ee0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555bde136ee0, mutex=0x555bde136eb8) at pthread_cond_wait.c:638
#3  0x00007f5b2f005603 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2f00546b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f5b353c9700 (LWP 51060)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555bde136da8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555bde136d58, cond=0x555bde136d80) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555bde136d80, mutex=0x555bde136d58) at pthread_cond_wait.c:638
#3  0x00007f5b2f005603 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007f5b2f00546b in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f5b367cf700 (LWP 51059)):
#0  0x00007f5b3c8d9aff in __GI___poll (fds=0x7f5b367cec68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f5b3d636c1a in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f5b3d63890a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f5b36c55d58 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f5b3ca83bec in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5b3be42609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f5b3c8e6293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f5b39403cc0 (LWP 51058)):
[KCrash Handler]
#4  __memmove_sse2_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:500
#5  0x00007f5b3cac0d4b in QListData::remove(int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5b3cac109d in QListData::erase(void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f5b203af99c in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/debthumbnailer.so
#8  0x00007f5b3d81080f in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so
#9  0x00007f5b3d811606 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so
#10 0x00007f5b3d812ca1 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so
#11 0x00007f5b38d66aa6 in KIO::SlaveBase::dispatch(int, QByteArray const&) () from /usr/lib/x86_64-linux-gnu/libKF5KIOCore.so.5
#12 0x00007f5b38d67146 in KIO::SlaveBase::dispatchLoop() () from /usr/lib/x86_64-linux-gnu/libKF5KIOCore.so.5
#13 0x00007f5b3d80fc82 in kdemain () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so
#14 0x0000555bdd235076 in ?? ()
#15 0x0000555bdd2364da in ?? ()
#16 0x0000555bdd236eca in ?? ()
#17 0x0000555bdd2320ff in ?? ()
#18 0x00007f5b3c7eb0b3 in __libc_start_main (main=0x555bdd231750, argc=3, argv=0x7fffddc85c28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffddc85c18) at ../csu/libc-start.c:308
#19 0x0000555bdd232cce in ?? ()
[Inferior 1 (process 51058) detached]