Created attachment 389316 [details]
File: backtrace

#6  0x000000365f02a131 in cairo_surface_reference (
    surface=<value optimized out>) at cairo-surface.c:406
        __PRETTY_FUNCTION__ = "cairo_surface_reference"
#7  0x00000031406ed521 in gfxASurface::AddRef (this=0x7f5bbcc03200)
    at gfxASurface.cpp:81
No locals.
#8  0x00000031406ef325 in nsRefPtr (this=0x7f5bbcc02680, surface=
    0x7f5bbcc03200) at ../../../dist/include/xpcom/nsAutoPtr.h:980
No locals.
#9  gfxContext::gfxContext (this=0x7f5bbcc02680, surface=0x7f5bbcc03200)
    at gfxContext.cpp:60
No locals.
#10 0x0000003140626848 in nsThebesRenderingContext::Init (this=
    0x7f5bbcd3bb20, aContext=<value optimized out>, aThebesSurface=
    0x7f5bbcc03200) at nsThebesRenderingContext.cpp:105
No locals.
#11 0x0000003140614617 in nsBaseWidget::GetRenderingContext (this=
    0x7f5bd3b12380) at nsBaseWidget.cpp:654
        surface = <value optimized out>
        rv = <value optimized out>
        renderingCtx = {<nsCOMPtr_base> = {mRawPtr = 
    0x7f5bbcd3bb20}, <No data fields>}
#12 0x00000031405fe67f in nsWindow::OnExposeEvent (this=0x7f5bd3b12380, 
    aWidget=<value optimized out>, aEvent=0x7fffef8e4390) at nsWindow.cpp:2335
        translucent = <value optimized out>
        updateRegion = {<nsCOMPtr_base> = {mRawPtr = 
    0x7f5bbcd79dd0}, <No data fields>}
        nrects = 3
        r = 0x7f5bbcedaa60
        r_end = 0x7f5bbcedaa60
        rc = {<nsCOMPtr_base> = {mRawPtr = 0x3140863a87}, <No data fields>}
        boundsRect = {x = -275890352, y = 32767, width = 4251339, height = 0}
        bufferPixmap = <value optimized out>
        event = {<nsGUIEvent> = {<nsEvent> = {eventStructType = 0 '\000', 
              message = 0, refPoint = {x = -275890452, y = 32767}, time = 
    4019077808, flags = 32767, userType = {<nsCOMPtr_base> = {mRawPtr = 
    0x31400fa54c}, <No data fields>}, target = {<nsCOMPtr_base> = {mRawPtr = 
    0x7f5bbdd5d418}, <No data fields>}, currentTarget = {<nsCOMPtr_base> = {
                  mRawPtr = 0x7f5bcae4b7a8}, <No data fields>}, 
              originalTarget = {<nsCOMPtr_base> = {mRawPtr = 
    0x0}, <No data fields>}}, widget = {<nsCOMPtr_base> = {mRawPtr = 
    0x31400462eb}, <No data fields>}, nativeMsg = 0x7fffef8e3e90}, 
          renderingContext = 0x7f5bbcfdfce0, region = 0x0, rect = 
    0x7f5bd8922340}
        rects = 0x7f5bbcedaa30
        ctx = {mRawPtr = 0x3000000010}
        status = <value optimized out>
        kRegionCID = {m0 = 3777450736, m1 = 61082, m2 = 4561, m3 = 
    "\250*\000@\225\232(\311"}
        bufferPixmapSurface = {mRawPtr = 0x313aae5160}




-- 
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

Assigning to Martin, setting keyword Triaged.

This bug has been triaged



-- 
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

I can find the "Gravity Swarm - OpenProcessing" at the page. Is the reproducer still valid?

*** Bug 574232 has been marked as a duplicate of this bug. ***

*** Bug 584920 has been marked as a duplicate of this bug. ***

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