Application: plasma-discover (5.14.4)

Qt Version: 5.11.2
Frameworks Version: 5.54.0
Operating System: Linux 4.15.0-43-generic x86_64
Distribution: KDE neon Developer Edition

-- Information about the crash:
Discover chrashes after installing Krita, KDE Dev, Chromium, Fritzing, and RealVNC Connect via DEB.

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f94dbc53200 (LWP 4118))]

Thread 28 (Thread 0x7f9456935700 (LWP 4219)):
#0  0x00007f94d71bf839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f94d176829a in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d16f54f1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94d174aaa4 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f9456935700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7f9457136700 (LWP 4218)):
#0  0x00007f94d71bf839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f94d176829a in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d16f54f1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94d174aaa4 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f9457136700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7f9457937700 (LWP 4217)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f9457936270, nfds=2, timeout=60000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94a69a258d in g_socket_condition_timed_wait () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#2  0x00007f94a69a344e in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#3  0x00007f94a6987f50 in g_input_stream_read () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f94655e8045 in  () at /usr/lib/x86_64-linux-gnu/gio/modules/libgiognutls.so
#5  0x00007f94652a7868 in  () at /usr/lib/x86_64-linux-gnu/libgnutls.so.30
#6  0x00007f94652a189a in  () at /usr/lib/x86_64-linux-gnu/libgnutls.so.30
#7  0x00007f94652a8d23 in  () at /usr/lib/x86_64-linux-gnu/libgnutls.so.30
#8  0x00007f94652ab93c in  () at /usr/lib/x86_64-linux-gnu/libgnutls.so.30
#9  0x00007f94652adc86 in gnutls_handshake () at /usr/lib/x86_64-linux-gnu/libgnutls.so.30
#10 0x00007f94655e8d6f in  () at /usr/lib/x86_64-linux-gnu/gio/modules/libgiognutls.so
#11 0x00007f94655e91ed in  () at /usr/lib/x86_64-linux-gnu/gio/modules/libgiognutls.so
#12 0x00007f94a69b1cf6 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#13 0x00007f94d174aad0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f94d38be6db in start_thread (arg=0x7f9457937700) at pthread_create.c:463
#16 0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f9467fff700 (LWP 4216)):
#0  0x00007f94d71bf839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f94d176829a in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d16f54f1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94d174aaa4 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f9467fff700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f947f9cf700 (LWP 4215)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f947f9ce270, nfds=2, timeout=60000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94a69a258d in g_socket_condition_timed_wait () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#2  0x00007f94a69a344e in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#3  0x00007f94a6987f50 in g_input_stream_read () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f94655e8045 in  () at /usr/lib/x86_64-linux-gnu/gio/modules/libgiognutls.so
#5  0x00007f94652a7868 in  () at /usr/lib/x86_64-linux-gnu/libgnutls.so.30
#6  0x00007f94652a189a in  () at /usr/lib/x86_64-linux-gnu/libgnutls.so.30
#7  0x00007f94652a8d23 in  () at /usr/lib/x86_64-linux-gnu/libgnutls.so.30
#8  0x00007f94652ab93c in  () at /usr/lib/x86_64-linux-gnu/libgnutls.so.30
#9  0x00007f94652adc86 in gnutls_handshake () at /usr/lib/x86_64-linux-gnu/libgnutls.so.30
#10 0x00007f94655e8d6f in  () at /usr/lib/x86_64-linux-gnu/gio/modules/libgiognutls.so
#11 0x00007f94655e91ed in  () at /usr/lib/x86_64-linux-gnu/gio/modules/libgiognutls.so
#12 0x00007f94a69b1cf6 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#13 0x00007f94d174aad0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f94d38be6db in start_thread (arg=0x7f947f9cf700) at pthread_create.c:463
#16 0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f9464d2a700 (LWP 4214)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f944400d8a0, nfds=2, timeout=60000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3daf6 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f9464d2a700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f94935f7700 (LWP 4213)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f9484013980, nfds=2, timeout=60000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3daf6 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f94935f7700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f947e1cc700 (LWP 4212)):
#0  0x00007f94d71bf839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f94d176829a in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d16f54f1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94d174aaa4 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f947e1cc700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f9466ffd700 (LWP 4211)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f9460003310, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3daf6 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f9466ffd700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f9493fff700 (LWP 4210)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f9450003250, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3daf6 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f9493fff700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f9465ffb700 (LWP 4209)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f9468003040, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3daf6 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f9465ffb700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f94667fc700 (LWP 4208)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f94740033b0, nfds=2, timeout=60000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3daf6 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f94667fc700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f94677fe700 (LWP 4140)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f945c002190, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3c36d in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f9491b06537 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#5  0x00007f9491b0faa1 in ostree_repo_remote_fetch_summary_with_options () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#6  0x00007f9491af1736 in ostree_repo_remote_fetch_summary () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#7  0x00007f94927249bd in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#8  0x00007f9492725198 in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#9  0x00007f949275afea in flatpak_installation_fetch_remote_metadata_sync () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#10 0x00007f9492be4618 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#11 0x00007f9492be1452 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#12 0x00007f94d78c5002 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f94d38be6db in start_thread (arg=0x7f94677fe700) at pthread_create.c:463
#15 0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f947c9c9700 (LWP 4138)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f9460001960, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3c36d in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f9491b06537 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#5  0x00007f9491b0faa1 in ostree_repo_remote_fetch_summary_with_options () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#6  0x00007f9491af1736 in ostree_repo_remote_fetch_summary () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#7  0x00007f94927249bd in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#8  0x00007f9492725198 in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#9  0x00007f949275afea in flatpak_installation_fetch_remote_metadata_sync () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#10 0x00007f9492be4618 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#11 0x00007f9492be1452 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#12 0x00007f94d78c5002 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f94d38be6db in start_thread (arg=0x7f947c9c9700) at pthread_create.c:463
#15 0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f947d1ca700 (LWP 4135)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f9450002110, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3c36d in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f9491b06537 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#5  0x00007f9491b0faa1 in ostree_repo_remote_fetch_summary_with_options () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#6  0x00007f9491af1736 in ostree_repo_remote_fetch_summary () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#7  0x00007f94927249bd in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#8  0x00007f9492725198 in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#9  0x00007f949275afea in flatpak_installation_fetch_remote_metadata_sync () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#10 0x00007f9492be4618 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#11 0x00007f9492be1452 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#12 0x00007f94d78c5002 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f94d38be6db in start_thread (arg=0x7f947d1ca700) at pthread_create.c:463
#15 0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f947d9cb700 (LWP 4134)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f9468001960, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3c36d in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f9491b06537 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#5  0x00007f9491b0faa1 in ostree_repo_remote_fetch_summary_with_options () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#6  0x00007f9491af1736 in ostree_repo_remote_fetch_summary () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#7  0x00007f94927249bd in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#8  0x00007f9492725198 in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#9  0x00007f949275afea in flatpak_installation_fetch_remote_metadata_sync () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#10 0x00007f9492be4618 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#11 0x00007f9492be1452 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#12 0x00007f94d78c5002 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f94d38be6db in start_thread (arg=0x7f947d9cb700) at pthread_create.c:463
#15 0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f947e9cd700 (LWP 4133)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f9474001940, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3c36d in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f9491b06537 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#5  0x00007f9491b0faa1 in ostree_repo_remote_fetch_summary_with_options () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#6  0x00007f9491af1736 in ostree_repo_remote_fetch_summary () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#7  0x00007f94927249bd in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#8  0x00007f9492725198 in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#9  0x00007f949275afea in flatpak_installation_fetch_remote_metadata_sync () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#10 0x00007f9492be4618 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#11 0x00007f9492be1452 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#12 0x00007f94d78c5002 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f94d38be6db in start_thread (arg=0x7f947e9cd700) at pthread_create.c:463
#15 0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f947f1ce700 (LWP 4132)):
#0  0x00007f94d1768064 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f94d1721a88 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172246b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94d7af304b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94d7a9730a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94d78c2bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f94d38be6db in start_thread (arg=0x7f947f1ce700) at pthread_create.c:463
#9  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f9490de3700 (LWP 4130)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f94840142a0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9491b3c36d in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#4  0x00007f9491b06537 in  () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#5  0x00007f9491b0faa1 in ostree_repo_remote_fetch_summary_with_options () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#6  0x00007f9491af1736 in ostree_repo_remote_fetch_summary () at /usr/lib/x86_64-linux-gnu/libostree-1.so.1
#7  0x00007f94927249bd in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#8  0x00007f9492725198 in  () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#9  0x00007f949275afea in flatpak_installation_fetch_remote_metadata_sync () at /usr/lib/x86_64-linux-gnu/libflatpak.so.0
#10 0x00007f9492be4618 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#11 0x00007f9492be1452 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/flatpak-backend.so
#12 0x00007f94d78c5002 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f94d38be6db in start_thread (arg=0x7f9490de3700) at pthread_create.c:463
#15 0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f94a0d99700 (LWP 4127)):
#0  0x00007f94d71bf839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f94d78c1594 in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f94d7ac8310 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f94d55cc38b in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#4  0x00007f94d566626d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#5  0x00007f94d7ac8075 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94d55c1fa9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007f94d55c2865 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007f94d7ac8075 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f94d565fe9f in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007f94d565c9c0 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f94d565cd55 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#12 0x00007f94d5641451 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#13 0x00007f94d7ac8075 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f94d5609ce3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#15 0x00007f94d5609d94 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#16 0x00007f94d561d651 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#17 0x00007f94d90b4e1c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f94d90bc3ef in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f94d7a98fe8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f94d7af3c7d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f94d1722387 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f94d17225c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f94d7af302f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f94d7a9730a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f94d78c2bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f94d38be6db in start_thread (arg=0x7f94a0d99700) at pthread_create.c:463
#29 0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f94a231a700 (LWP 4126)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f9498003ce0, nfds=1, timeout=9824) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94d7af304b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f94d7a9730a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94d78c2bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f94d38be6db in start_thread (arg=0x7f94a231a700) at pthread_create.c:463
#8  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f94a3a9a700 (LWP 4125)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x564f59d26ad0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d17228d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94a69f3026 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f94a3a9a700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f94a429b700 (LWP 4124)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x564f59c63060, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94d1722691 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94d174a105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94d38be6db in start_thread (arg=0x7f94a429b700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f94afe26700 (LWP 4123)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f94a8004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94d7af304b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f94d7a9730a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94d78c2bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94daed2826 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f94d38be6db in start_thread (arg=0x7f94afe26700) at pthread_create.c:463
#9  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f94bb5ef700 (LWP 4122)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f94b4004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94d7af304b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f94d7a9730a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94d78c2bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94d846a4f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f94d38be6db in start_thread (arg=0x7f94bb5ef700) at pthread_create.c:463
#9  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f94c096b700 (LWP 4121)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f94bc019180, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d1722539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94d7af304b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f94d7a9730a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94d78c2bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94d97c4e45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f94d38be6db in start_thread (arg=0x7f94c096b700) at pthread_create.c:463
#9  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f94c91e1700 (LWP 4120)):
#0  0x00007f94d71b8bf9 in __GI___poll (fds=0x7f94c91e0ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94d0e57747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f94d0e5936a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f94cc1a1ed9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f94d78cdadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94d38be6db in start_thread (arg=0x7f94c91e1700) at pthread_create.c:463
#6  0x00007f94d71c588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f94dbc53200 (LWP 4118)):
[KCrash Handler]
#6  0x00007f94dab6bd62 in AbstractResource::reportNewState() () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#7  0x00007f94d7ac818f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f94a6eedcb5 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/fwupd-backend.so
#9  0x00007f94a6eee4e7 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/fwupd-backend.so
#10 0x00007f94a6eeedc1 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/fwupd-backend.so
#11 0x00007f94d7ac818f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f94d78cb223 in QFutureWatcherBase::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94d90b4e1c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f94d90bc3ef in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f94d7a98fe8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f94d7a9bb2d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f94d7af39f3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f94d1722387 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f94d17225c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f94d172264c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f94d7af302f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f94cc22d761 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#23 0x00007f94d7a9730a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f94d7aa04d0 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x0000564f572bf868 in  ()
#26 0x00007f94d70c5b97 in __libc_start_main (main=0x564f572bef90, argc=1, argv=0x7ffdf8640138, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdf8640128) at ../csu/libc-start.c:310
#27 0x0000564f572bfaea in _start ()

Reported using DrKonqi