Re: X resource leak?

[Óscar Fuentes]

"Stephen J. Turnbull" <address@hidden> writes:

> Chong Yidong writes:
>  > Óscar Fuentes <address@hidden> writes:
>  > 
>  > > I place an emacs -Q session and a konsole with xrestop side to
>  > > side. Just opening a file, scrolling through, etc, makes the number of
>  > > pixmaps and misc objects to grow. Killing the buffer does not reduce the
>  > > number of X resources used by emacs. Something as simple as C-x C-f C-g
>  > > increases the number of pixmaps by 4 (2 for C-x C-f and two more when I
>  > > abort with C-g). Is as if the allocated X resources never were freed.
>  > 
>  > I can not reproduce this.  Could you provide a *precise* recipe?

That's the precise recipe. I repeat:

emacs -Q

C-x C-f C-g

and the pixmap count increases by 4. C-x C-f C-g again, and it keeps
increasing.

I'm not expecting from you to reproduce the problem: it is so glaring
that if it were common it would already noticed. I'm looking for some
guidance on how to diagnose it on my machine.

> This sounds like the X server may not have the X Render extension
> enabled, so Xft is using pixmaps to simulate X Render.  I have nothing
> more to say about it, this is just hearsay from something I read
> somewhere in passing (that for a couple of year Xft has had the
> capability to use standard X calls to simulate X Render calls).
> Anyway, it's easy to check for the X Render extension in the server
> with xpdyinfo | grep -i render and in emacs with ldd | grep -i render.
> If it's present as an extension in the server and linked in emacs,
> probably that's not it.

/home/oscar $ ldd /usr/local/bin/emacs | grep -i render
        libXrender.so.1 => /usr/lib/libXrender.so.1 (0x00007f8a5f9ba000)
        libxcb-render-util.so.0 => /usr/lib/libxcb-render-util.so.0 
(0x00007f8a5eb37000)
        libxcb-render.so.0 => /usr/lib/libxcb-render.so.0 (0x00007f8a5e92e000)

I have no xpdyinfo. Hope the above is enough to decide if the
exentension is working or not.

-- 
Oscar