[kwin] [Bug 523812] kwin_wayland leaks screen-sized DRM buffers during rendering: ~1.4 GB/hour of active use, zero when idle

https://bugs.kde.org/show_bug.cgi?id=523812

--- Comment #5 from AccessWebBE <[email protected]> ---
(In reply to Zamundaaa from comment #3)
> > the memory is --not-- released when the compositor exits
> Then it cannot be a bug in the compositor. Please report it to the kernel
> driver

Fair enough on the not-being-released part — I'll take that to the driver. To
be clear about what I meant to report here though: while running, kwin_wayland
held 8057 screen-sized buffers simultaneously, growing throughout the session.
They were dropped at exit because the kernel closes the DRM fd when a process
dies, not because the compositor released them. The question I'm raising is why
it accumulates them in the first place.

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