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List:       kde-bugs-dist
Subject:    [plasmashell] [Bug 368838] plasmashell memory leak when slideshow is used for wallpaper/media frame/
From:       Matt Whitlock <bugzilla_noreply () kde ! org>
Date:       2018-05-16 23:20:45
Message-ID: bug-368838-17878-P9LCnN2B8S () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=368838

--- Comment #113 from Matt Whitlock <kde@mattwhitlock.name> ---
(In reply to David Edmundson from comment #112)
> @Matt
> How can you tell what is leaking from looking at comment #0?

There have been at least two distinct memory leaks discussed in this thread.
The original report by Antonio Orefice is about a memory leak that occurs when
Plasma renders images. Antonio posted a link to a video demonstrating the leak
in Comment #59. I am able to reproduce his leak by the same method: force
Plasma to paint a lot of images in a short amount of time. It will also leak
just the same eventually in normal use, but it takes longer. The leak occurs
even without opening the "Add Widget" panel and scrolling the list up and down
like mad, but that's one quick way to reproduce it.

The other leak was due to the logic error that you described in Comment #86.
That leak has been fixed by https://codereview.qt-project.org/#/c/202781/.

> and what do you mean by an "in-process leak". All leaks are in-process.

Firstly, that's not true; it's entirely possible to leak pixmaps, and those are
in the X server's process, not the X client's. But in this case, what I meant
was that the leak that was fixed by calling endSync() was a leak of graphics
memory, not a leak of system memory, so it wasn't accounted to the plasmashell
process.

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