[Poppler-bugs] [Bug 84737] New: Memory leak (reloading the same file increases memory consumption)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84737

            Bug ID: 84737
           Summary: Memory leak (reloading the same file increases memory
                    consumption)
           Product: poppler
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: glib frontend
          Assignee: poppler-bugs at lists.freedesktop.org
          Reporter: phillip.berndt at googlemail.com

Created attachment 107455
  --> https://bugs.freedesktop.org/attachment.cgi?id=107455&action=edit
Test program

The attached test program loads a PDF file, draws it, unloads the file, and
then starts over again. To compile it, use

 cc test.c -o test $(pkg-config --libs --cflags gtk+-3.0 glib-2.0 cairo gio-2.0
poppler-glib)

and then start it with a PDF file as its first argument, preferably a large
one, like a paper or a book.

I'd expect _some_, _limited_ growth in memory consumption, due to things like
caching, but instead memory usage appears to grow linearly. With a 147kB PDF,
I'm at 1.5GB memory consumption after some minutes. I tested this with Poppler
0.24.5 and 0.26.5, but not with the latest git version, on a machine running
Ubuntu Trusty.

If I run the same program with a gdk-pixbuf and images instead of poppler,
memory consumption does not increase, so I am quite positive that this is
indeed a poppler bug and not one in gtk/glib. I did not make any attempts to
find the source within poppler though, so I can't tell if this really is a
problem in the glib frontend or if the problem lies in the backend.

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