[LAD] memory leak assistance

Hi,

I have some code in gtk2 that is leaking and I can't fix it. Over the
past two nights I have managed to get the leak down from 200MB/minute to
200MB/10 minutes but I can't get rid of it completely. It's annoying
because it increments in 200MB blocks so I have to wait for up to 10
mins to see if it is fixed or not. I have tried valgrind but it doesn't
really like jack and did not give me any useful output. I have traced
the leak through normal debugging and have verified that it does not
happen if I disable this offending code.

This code is run in the widgets realize event and the event is triggered
every 500ms.

   PangoContext *pc = gtk_widget_get_pango_context(widget);
   PangoLayout *pl;
   PangoFontDescription *pfd;
   PangoRectangle rect;

   pfd = pango_font_description_new();
   pango_font_description_set_family(pfd, "sans");
   pango_font_description_set_size(pfd, 8 * PANGO_SCALE);
   pango_context_set_font_description(pc, pfd);
   pl = pango_layout_new(pc);
   pango_layout_set_text(pl, "99", -1);
   pango_layout_get_pixel_extents(pl, &rect, NULL);

   pango_font_description_free(pfd);
   g_object_unref(pc);

If I add another

      g_object_unref(pl) ;

The app code will compile but when I run it I get this segfault:

*** glibc detected *** ./src/jackeq: free(): invalid pointer:
0x0000000001b87a60 ***

I can have one g_object_unref for either pl or pc without segfaulting
but not both.

I'm pretty sure this is the last leak I have to catch for the merged
gtkmeter.c/gtkmeterscale.c and I can't release jackeq until it is fixed.
Any assistance with this one is appreciated.

Cheers.

-- 
Patrick Shirkey
Boost Hardware Ltd
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