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List:       kde-bugs-dist
Subject:    [KScreen] [Bug 342374] Memory Leak in plasma-desktop grows into gigabytes
From:       Shawn Cook <shawn () strongerforyou ! com>
Date:       2014-12-31 16:16:14
Message-ID: bug-342374-17878-hgSd9MrT5g () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=342374

--- Comment #1 from Shawn Cook <shawn@strongerforyou.com> ---
Additional Information:
I've repeatedly seen the follow increase plasma-desktop memory size at a rate
of 2M per second for hundreds of megabytes.
----------------------------------------------------------------------------------------------------------------------------------
                
-Kopete spinning icon in system tray (always)
Bouncing icon by pointer when launching an application (most of the time)
> > > Removing the system tray applet does not stop plasma-desktop from leaking,
only prevents these 2 sources
> > > Using system tray widget instead of applet does not stop the memory leak
either

-Desktop Folder Widget, moving the mouse over any icons in the folder widget
would increase plasma-desktop memory size by roughly .5M to 1M per second until
all had be hovered, then after a few seconds it would again begin growing upon
hovering.

I have been monitoring my system under little to no load and I've found that
plasma-desktop will consume ram until it forces swapping and then the swap used
will grow until the system freezes.  I've also found these entires in the
messages log:
Dec 18 04:42:18 localhost kernel: [22336.857390] Out of memory: Kill process
2218 (plasma-desktop) score 823 or sacrifice child
Dec 18 04:42:18 localhost kernel: [22336.859305] Out of memory: Kill process
2218 (plasma-desktop) score 823 or sacrifice child
Dec 18 04:42:18 localhost kernel: Out of memory: Kill process 2218
(plasma-desktop) score 823 or sacrifice child
Dec 18 04:42:19 localhost kernel: Out of memory: Kill process 2218
(plasma-desktop) score 823 or sacrifice child
Dec 18 04:42:18 localhost kernel: Out of memory: Kill process 2218
(plasma-desktop) score 823 or sacrifice child
Dec 18 04:42:19 localhost kernel: Out of memory: Kill process 2218
(plasma-desktop) score 823 or sacrifice child
Dec 18 15:39:00 localhost kernel: [23509.678942] Out of memory: Kill process
2205 (plasma-desktop) score 693 or sacrifice child
Dec 18 15:39:00 localhost kernel: [23514.703722] Out of memory: Kill process
2205 (plasma-desktop) score 693 or sacrifice child
Dec 18 15:39:30 localhost kernel: Out of memory: Kill process 2205
(plasma-desktop) score 693 or sacrifice child
Dec 18 15:39:30 localhost kernel: Out of memory: Kill process 2205
(plasma-desktop) score 693 or sacrifice child
Dec 19 02:54:12 localhost kernel: [31023.577804] Out of memory: Kill process
2237 (plasma-desktop) score 792 or sacrifice child
Dec 19 02:54:41 localhost kernel: [31052.134485] Out of memory: Kill process
2237 (plasma-desktop) score 792 or sacrifice child
Dec 19 02:54:42 localhost kernel: Out of memory: Kill process 2237
(plasma-desktop) score 792 or sacrifice child
Dec 19 02:54:42 localhost kernel: Out of memory: Kill process 2237
(plasma-desktop) score 792 or sacrifice child
Dec 19 02:54:42 localhost kernel: Out of memory: Kill process 2237
(plasma-desktop) score 792 or sacrifice child
Dec 19 02:54:42 localhost kernel: Out of memory: Kill process 2237
(plasma-desktop) score 792 or sacrifice child
Dec 20 00:20:00 localhost kernel: [29825.945429] Out of memory: Kill process
2234 (plasma-desktop) score 766 or sacrifice child
Dec 20 00:20:00 localhost kernel: [29825.946721] Out of memory: Kill process
2234 (plasma-desktop) score 766 or sacrifice child
Dec 20 00:20:01 localhost kernel: Out of memory: Kill process 2234
(plasma-desktop) score 766 or sacrifice child
Dec 20 00:20:01 localhost kernel: Out of memory: Kill process 2234
(plasma-desktop) score 766 or sacrifice child

I have not reliably identified any one single trigger and the memory growth is
slow unless I'm using the system heavily.  I have found though that jut walking
away and returning 8 hours later after no use and the plasma-desktop
utilization has grown.  I've disabled desktop search and it continues.  I
haven't used other Activities.

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