Any time I hover over an application on the task manager after clicking on the task manager, plasmashell crashes with a segfault. Reproducible: Always Steps to Reproduce: 1. Open Konsole 2. Hover over Konsole on the task manager. 2. Click on the task manager. 3. Hover over Konsole on the task manager. Actual Results: plasmashell crashes Signal: Segmentation fault (11) Expected Results: Display the thumbnails. This is running on a Hyper-V virtual machine running the fbdev graphics driver. Application: Plasma (plasmashell), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". [Current thread is 1 (Thread 0x7fcbdd749840 (LWP 30327))] Thread 12 (Thread 0x7fcbc8609700 (LWP 30360)): #0 0x00007fcbd7f5157d in ?? () from /lib64/libc.so.6 #1 0x000000000193a070 in ?? () #2 0x00007ffc5a10d9ef in ?? () #3 0x00007fcbd8630292 in ?? () from /usr/lib64/libQt5Core.so.5 #4 0x007ffc5a10dd3000 in ?? () #5 0x00000003543d0000 in ?? () #6 0x007fcbdb19031900 in ?? () #7 0x0000000192d0e800 in ?? () #8 0x007fcbd889128000 in ?? () #9 0x007fcbd889128000 in ?? () #10 0x007fcbdbef4abe00 in ?? () #11 0x00000001921bf000 in ?? () #12 0x00000001929ff000 in ?? () #13 0x007fcbd889129800 in ?? () #14 0x007fcbc9b16e5500 in ?? () #15 0x00000001979a5000 in ?? () #16 0x1a6730b775b60000 in ?? () #17 0x007ffc5a10da70d7 in ?? () #18 0x1a6730b775b60000 in ?? () #19 0x00000003543d00d7 in ?? () #20 0x007ffc5a10daa000 in ?? () #21 0x00000003543d0000 in ?? () #22 0x007ffc5a10dd3000 in ?? () #23 0x0000000000000600 in ?? () #24 0x1a6730b775b60000 in ?? () #25 0x00000000000000d7 in ?? () #26 0x00000003543d0000 in ?? () #27 0x007ffc5a10dd3000 in ?? () #28 0x00000001921bf000 in ?? () #29 0x0000000000040100 in ?? () #30 0x00000003543d0000 in ?? () #31 0x007fcbc9b43ee000 in ?? () #32 0x007fcbc489f62500 in ?? () #33 0x007ffc5a10dd3000 in ?? () #34 0x00000003543d0000 in ?? () #35 0x007ffc5a10dd3000 in ?? () #36 0x007fcbd921892c00 in ?? () #37 0x00000001929ff000 in ?? () #38 0x007ffc5a10dd3000 in ?? () #39 0x0000000000000000 in ?? () Thread 11 (Thread 0x7fcbc5b79700 (LWP 30403)): #0 0x00007fcbd3dff4b9 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0 #1 0x00007fcbd3dbae50 in ?? () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fcbd3dbb05c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fcbd882071b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5 #4 0x00007fcbd87d26fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5 #5 0x00007fcbd862bc74 in QThread::exec() () from /usr/lib64/libQt5Core.so.5 #6 0x00007fcbdadc4665 in ?? () from /usr/lib64/libQt5Qml.so.5 #7 0x00007fcbd8630292 in ?? () from /usr/lib64/libQt5Core.so.5 #8 0x00007fcbd7764424 in start_thread () from /lib64/libpthread.so.0 #9 0x00007fcbd7f5a5fd in epoll_pwait () from /lib64/libc.so.6 #10 0x0000000000000000 in ?? () Thread 10 (Thread 0x7fcbb5e65700 (LWP 30423)): #0 0x00007fcbd7769faf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fcbbf959ca3 in ?? () from /usr/lib64/dri/swrast_dri.so #2 0x00007fcbbf959b07 in ?? () from /usr/lib64/dri/swrast_dri.so #3 0x00007fcbd7764424 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fcbd7f5a5fd in epoll_pwait () from /lib64/libc.so.6 #5 0x0000000000000000 in ?? () Thread 9 (Thread 0x7fcbb5664700 (LWP 30424)): #0 0x00007fcbd7769faf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fcbbf959ca3 in ?? () from /usr/lib64/dri/swrast_dri.so #2 0x00007fcbbf959b07 in ?? () from /usr/lib64/dri/swrast_dri.so #3 0x00007fcbd7764424 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fcbd7f5a5fd in epoll_pwait () from /lib64/libc.so.6 #5 0x0000000000000000 in ?? () Thread 8 (Thread 0x7fcbb4e63700 (LWP 30425)): #0 0x00007fcbd7769faf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fcbbf959ca3 in ?? () from /usr/lib64/dri/swrast_dri.so #2 0x00007fcbbf959b07 in ?? () from /usr/lib64/dri/swrast_dri.so #3 0x00007fcbd7764424 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fcbd7f5a5fd in epoll_pwait () from /lib64/libc.so.6 #5 0x0000000000000000 in ?? () Thread 7 (Thread 0x7fcbb4662700 (LWP 30426)): #0 0x00007fcbd7769faf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fcbbf959ca3 in ?? () from /usr/lib64/dri/swrast_dri.so #2 0x00007fcbbf959b07 in ?? () from /usr/lib64/dri/swrast_dri.so #3 0x00007fcbd7764424 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fcbd7f5a5fd in epoll_pwait () from /lib64/libc.so.6 #5 0x0000000000000000 in ?? () Thread 6 (Thread 0x7fcbb0db0700 (LWP 30442)): #0 0x00007fcbd7f669af in __register_atfork () from /lib64/libc.so.6 #1 0x00007fcbd7f51572 in ?? () from /lib64/libc.so.6 #2 0x00007fcbd862bc74 in QThread::exec() () from /usr/lib64/libQt5Core.so.5 #3 0x00007fcbdadc4665 in ?? () from /usr/lib64/libQt5Qml.so.5 #4 0x00007fcbd8630292 in ?? () from /usr/lib64/libQt5Core.so.5 #5 0x00007fcbd7764424 in start_thread () from /lib64/libpthread.so.0 #6 0x00007fcbd7f5a5fd in epoll_pwait () from /lib64/libc.so.6 #7 0x0000000000000000 in ?? () Thread 5 (Thread 0x7fcbaab8a700 (LWP 30443)): #0 0x00007fcbd3dff4b9 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0 #1 0x00007fcbd3dba98c in g_main_context_check () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fcbd3dbaef0 in ?? () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fcbd3dbb05c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #4 0x00007fcbd882071b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5 #5 0x00007fcbd87d26fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5 #6 0x00007fcbd862bc74 in QThread::exec() () from /usr/lib64/libQt5Core.so.5 #7 0x00007fcbdadc4665 in ?? () from /usr/lib64/libQt5Qml.so.5 #8 0x00007fcbd8630292 in ?? () from /usr/lib64/libQt5Core.so.5 #9 0x00007fcbd7764424 in start_thread () from /lib64/libpthread.so.0 #10 0x00007fcbd7f5a5fd in epoll_pwait () from /lib64/libc.so.6 #11 0x0000000000000000 in ?? () Thread 4 (Thread 0x7fcba9316700 (LWP 30446)): #0 0x00007fcbd7769faf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fcbdd17e1a4 in ?? () from /usr/lib64/libQt5Script.so.5 #2 0x00007fcbdd17e1e9 in ?? () from /usr/lib64/libQt5Script.so.5 #3 0x00007fcbd7764424 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fcbd7f5a5fd in epoll_pwait () from /lib64/libc.so.6 #5 0x0000000000000000 in ?? () Thread 3 (Thread 0x7fcb22579700 (LWP 30455)): #0 0x00007fcbd3dff4b9 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0 #1 0x00007fcbd3dba98c in g_main_context_check () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fcbd3dbaef0 in ?? () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fcbd3dbb05c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #4 0x00007fcbd882071b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5 #5 0x00007fcbd87d26fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5 #6 0x00007fcbd862bc74 in QThread::exec() () from /usr/lib64/libQt5Core.so.5 #7 0x00007fcbdb74bf76 in ?? () from /usr/lib64/libQt5Quick.so.5 #8 0x00007fcbd8630292 in ?? () from /usr/lib64/libQt5Core.so.5 #9 0x00007fcbd7764424 in start_thread () from /lib64/libpthread.so.0 #10 0x00007fcbd7f5a5fd in epoll_pwait () from /lib64/libc.so.6 #11 0x0000000000000000 in ?? () Thread 2 (Thread 0x7fcb119ec700 (LWP 32340)): #0 0x00007fcbd7f4d56d in faccessat () from /lib64/libc.so.6 #1 0x00007fcbd3dc9e70 in ?? () from /usr/lib64/libglib-2.0.so.0 #2 0x0000000000000001 in ?? () #3 0x00007fcbd3dbaef0 in ?? () from /usr/lib64/libglib-2.0.so.0 #4 0x00007fcbd3dbb05c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #5 0x00007fcbd882071b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5 #6 0x00007fcbd87d26fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5 #7 0x00007fcbd862bc74 in QThread::exec() () from /usr/lib64/libQt5Core.so.5 #8 0x00007fcb128b13b7 in KCupsConnection::run() () from /usr/lib64/libkcupslib.so #9 0x00007fcbd8630292 in ?? () from /usr/lib64/libQt5Core.so.5 #10 0x00007fcbd7764424 in start_thread () from /lib64/libpthread.so.0 #11 0x00007fcbd7f5a5fd in epoll_pwait () from /lib64/libc.so.6 #12 0x0000000000000000 in ?? () Thread 1 (Thread 0x7fcbdd749840 (LWP 30327)): #0 0x00007fcbd7f2a3cd in fork () from /lib64/libc.so.6 Backtrace stopped: Cannot access memory at address 0x100000007
I believe this is same as bug#357895, fixed for plasma-framework-5.20 *** This bug has been marked as a duplicate of bug 357895 ***