https://bugs.kde.org/show_bug.cgi?id=370018
Bug ID: 370018
Summary: Scrolling window group results in crash of task
manager
Product: frameworks-plasma
Version: 5.7.0
Platform: Gentoo Packages
OS: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: components
Assignee: notm...@gmail.com
Reporter: jonfr1...@jonfr.com
The grouping of active windows in KDE task-manager has a serious bug in it. The
bug works in the following way.
When you have a group of Firefox windows open and they are arranged by activity
(or alphabetically) in the group. The trigger for the crash is when Facebook is
open and a new message appears. This makes the window order being moved as the
Facebook browser window blinks (notification of a new message) . This also
results in the window being moved up and down as the header text changes. When
attempting to click the active windows (in this case, Facebook) is difficult as
it moves, after few attempts the task-manager crashes. Log-out is needed in
order to restore the function of the task-manager.
I have not found any settings to change this behaviour in the task manager and
I have been looking for it.
Reproducible: Sometimes
Steps to Reproduce:
1. Create open windows (Firefox or other browser) so that a group of open
windows is created.
2. Open Facebook and get a new message. This creates the active Facebook window
to blink and move up and down in the window group.
3. After several attempts to click the windows (difficult as it moves around
when attempting to click) the task-manager crashes.
Actual Results:
The task manager crashes and logout is needed to get it working again.
Expected Results:
The task manager should not move the window up and down and should not crash.
This bugs happen in KDE version 5.7.4 running on Gentoo Linux. The error
message I get from dmesg is this one. No other error message appears.
"949747.031966] kactivitymanage[3601]: segfault at 7f400c01cc50 ip
00007f40001a4071 sp 00007fff66c2e8d8 error 4 in
libQt5Sql.so.5.6.1[7f400018f000+42000]
[949747.122753] traps: ck-remove-direc[21748] trap int3 ip:7feff0ede537
sp:7ffcbaa39ce0 error:0
[949758.146407] traps: ck-remove-direc[21835] trap int3 ip:7f9770946537
sp:7ffd0de237c0 error:0
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