[Rd] [R] [R-pkg] New packages pmg, gWidgets, gWidgetsRGtk2

[John Verzani]

Dear Peter,

Thanks. I think I fixed it. I was using an old version of cairoDevice so 
wasn't seeing the issue. I uploaded a new version of gWidgetsRGtk2 to CRAN 
and hopefully that fixes the issue.

Best,

John

On Sun, 8 Oct 2006, Peter Dalgaard wrote:

> Peter Dalgaard <p.dalgaard at biostat.ku.dk> writes:
> 
> > verzani at math.csi.cuny.edu writes:
> > 
> > > Finally, for some reason I'm trying to track down, under Windows, pmg
> > > is crashing when a cairoDevice graphics device is being closed. This
> > > affects the plotnotebook and the Lattice Explorer. I have an update to
> > > gWidgetsRGtk2 that may fix it, but I haven't had a chance to fully
> > > test it. It can be installed with
> > 
> > This appears not to be Windows-specific. I see it on Fedora Core 5
> > too:
> > 
> > > plot(x = ashina$vas.active, y = ashina$vas.plac, type = "p",
> > +     pch = 1, col = ashina$grp)
> > 
> >  *** caught segfault ***
> > address 0xfc, cause 'memory not mapped'
> > 
> > Traceback:
> >  1: dev.off(h$obj at device)
> >  2: handler(...)
> >  3: function (...) {    handler(...)    return(TRUE)}(list(obj = <S4
> >  object of class "gGraphicsRGtk">, action = NULL),     <pointer:
> >  0xc327a60>)
> > 
> > Possible actions:
> > 1: abort (with core dump)
> > 2: normal R exit
> > 3: exit R without saving workspace
> > 4: exit R saving workspace
> > 
> > (2.4.0 Patched, upon closing the plotnotebook)
> 
> Followup:
> 
> gdb says 
> 
> #0  0x080e7910 in Rf_KillDevice (dd=0x8287fc0)
>     at ../../../R/src/main/graphics.c:4814
> 4814        ((GEDevDesc*) dd)->dev->close(((GEDevDesc*) dd)->dev);
> (gdb) p ((GEDevDesc*) dd)->dev
> $1 = (NewDevDesc *) 0x0
> (gdb) bt
> #0  0x080e7910 in Rf_KillDevice (dd=0x8287fc0)
>     at ../../../R/src/main/graphics.c:4814
> #1  0x002202da in kill_cairo (dd=Variable "dd" is not available.
> ) at cairoDevice.c:197
> #2  0x00db21d9 in g_cclosure_marshal_VOID__VOID ()
>    from /usr/lib/libgobject-2.0.so.0
> #3  0x00da4f8b in g_closure_invoke () from
>     /usr/lib/libgobject-2.0.so.0
> #4  0x00db5e3d in g_signal_override_class_closure ()
>    from /usr/lib/libgobject-2.0.so.0
> #5  0x00db7347 in g_signal_emit_valist () from
>     /usr/lib/libgobject-2.0.so.0
> #6  0x00db7509 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
> #7  0x010e7761 in gtk_object_destroy () from
>     /usr/lib/libgtk-x11-2.0.so.0
> #8  0x011bde61 in gtk_widget_hide () from /usr/lib/libgtk-x11-2.0.so.0
> #9  0x00da7600 in g_object_run_dispose () from
>     /usr/lib/libgobject-2.0.so.0
> #10 0x010e756e in gtk_object_destroy () from
>     /usr/lib/libgtk-x11-2.0.so.0
> #11 0x011be045 in gtk_widget_destroy () from
>     /usr/lib/libgtk-x11-2.0.so.0
> #12 0x00222258 in freeCairoDesc (dd=0xc45cfd8) at cairoDevice.c:22
> #13 0x0022253d in Cairo_Close (dd=0xc45cfd8) at cairoDevice.c:550
> #14 0x080e78a3 in Rf_killDevice (devNum=1)
>     at ../../../R/src/main/graphics.c:4826
> #15 0x08121c3f in do_devoff (call=0xbbb3c2c, op=0x9c96c28,
>     args=0xbbb32b8,
>     env=0xbbb3d44) at ../../../R/src/main/plot.c:132
> #....
> 
> I'm a bit clueless regarding gtk, but it looks like a reentrancy
> issue, with a signal trying to close the device while it is already
> in the process of being closed. 
> 
> (CC moved to r-devel)
> 
>         -p
> 
> -- 
>    O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
>   c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
>  (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327918
> ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)                  FAX: (+45) 35327907
>