Why does the Xorg server reset the output when last client disconnects?

Joel Feiner jafeiner at gmail.com
Wed May 2 12:20:27 PDT 2007

I know about Firefox and allocating pixmaps, but, as you say, they should
all go away when you close Firefox.  Except that they don't.  So...it's a
memory leak.  Maybe it is a new bug?  I don't recall it being as bad until
the last several X server versions (using git....maybe that's the problem?).

Is there any sort of data I can provide that would help diagnose this bug
for the developers?

On 5/2/07, Daniel Stone <daniel at fooishbar.org> wrote:
> On Wed, May 02, 2007 at 12:09:02PM -0400, Joel Feiner wrote:
> > Memory leaks are NOT a thing of the past.  I have a serious one right
> now,
> > where using Firefox and visiting pages with a lot of images causes the X
> > server to leak a huge amount of heap memory, to the point that it uses
> up
> > approximately 800 MB of my 1 gig of RAM and I have to restart the X
> server
> > frequently.  There are other leaks that are slower, but they're still
> > there.
> Unless this is some staggering new bug we've not seen before, this is
> just Firefox allocating _heaps_ of pixmaps and never bothering to free
> them (you can confirm this with xrestop).  Closing Firefox undoes the
> damage.
> (I've had Firefox use 1.1GB of RAM and the X server use around 400MB
> before.)
> Version: GnuPG v1.4.3 (GNU/Linux)
> iD8DBQFGOMyeRkzMgPKxYGwRAh7yAJoD7VKRAhQb6fhEf5GRpipEaiL2twCbBYWr
> 2Iy2BzOwrTbzSgbGLPz10VY=
> =KYA3
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