[Konsole-devel] [konsole] [Bug 350353] New: Konsole using 100% of one CPU core/thread after being idle for a long time

[Colton DRG]

https://bugs.kde.org/show_bug.cgi?id=350353

            Bug ID: 350353
           Summary: Konsole using 100% of one CPU core/thread after being
                    idle for a long time
           Product: konsole
           Version: 15.04.0
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: grave
          Priority: NOR
         Component: general
          Assignee: konsole-devel at kde.org
          Reporter: colton at darkrealmgaming.com

After leaving Konsole opened for several minutes on Arch Linux, it starts using
100% of any given CPU core/thread. The process does not close when closing
Konsole and it continues using 100% of CPU as well.  "killall konsole" or
ending the konsole process from KSysGuard will close it and the CPU usage will
drop back to normal idle values immediately.

Reproducible: Always

Steps to Reproduce:
1. Open a Konsole window
2. Leave it opened for several minutes
3. Keep an eye on the konsole process in top or KSysGuard

Actual Results:  
Konsole was using 13% of my CPU, which is 100% of one thread on a hyperthreaded
quad-core CPU.

Expected Results:  
Konsole should have continued only using a fraction of a percent of my CPU as
it does normally when idle.

uname -a output: Linux rainbowdash 4.0.7-2-ARCH #1 SMP PREEMPT Tue Jun 30
07:50:21 UTC 2015 x86_64 GNU/Linux

CPU: Intel Core i7-4790K @ 4.0 GHz

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