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From: "Shashank Chintalagiri (shashank DOT chintalagiri AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Date: Tue, 19 May 2020 22:58:20 +0530
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Subject: Re: [geda-user] gschem segfaults on startup all of a sudden
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Reply-To: geda-user AT delorie DOT com

Roland,

> > (gschem:27169): Gtk-WARNING **: 05:52:22.277: Unable to locate theme
> > engine in module_path: "murrine",
>
> as far as I can tell, this is a new bug.  The first message indicates
> what's wrong: for some reason, GTK isn't initializing properly.

The 'murrine' thing does not seem to be a major issue. I've had that
error throughout for a long while now, and it never caused issues. I
have now looked into it and found out that installing the murrine and
adwaita gtk engines gets rid of those errors. The actual
segfault-on-startup with the other two errors persist. On a side not,
some GTK themes seem to cause extreme slowness and high CPU usage.
This I found out a couple of months ago when switching to 1.10.

I will attempt to perform some of the suggested debugging steps over
the next few days and let you know what the results are. In the
meanwhile, I have switched to another machine to get some work done,
where the same versions work.

On Tue, May 19, 2020 at 6:03 PM Roland Lutz <rlutz AT hedmen DOT org> wrote:
>
> Hi Shashank,
>
> On Tue, 19 May 2020, Shashank Chintalagiri
> (shashank DOT chintalagiri AT gmail DOT com) [via geda-user AT delorie DOT com] wrote:
> > All of a sudden, gschem (1.10.0 and git head) has started segfaulting
> > on startup for me. To the best of my knowledge, nothing has changed on
> > my computer. It was working one minute and then it wasn't.
> >
> > […]
> >
> > (gschem:27169): Gtk-WARNING **: 05:52:22.277: Unable to locate theme
> > engine in module_path: "murrine",
>
> as far as I can tell, this is a new bug.  The first message indicates
> what's wrong: for some reason, GTK isn't initializing properly.
>
> Could you please run gschem under gdb, once with G_DEBUG=fatal_warnings
> and once with G_DEBUG=fatal_criticals, and see where execution breaks?
>
>
> On Mon, 18 May 2020, John Conover wrote:
> > Yes, gschem(1) is doing a lot of core dumps, coming from the GTK/GDK
> > system.
>
> If this is reproducible on your system, that would be really helpful.
> gschem only very rarely crashes on my system (once a year or so) which
> makes this hard for me to debug.
>
> > I tried to find it from gdb after a compile on amd64, but to no avail.
>
> I believe it is some kind of memory corruption, which would mean memcheck
> or something similar is required for meaningful debugging.  Unfortunately,
> messages are flooded with problems with Guile, so I postponed this until
> gEDA/gaf can run without Guile.
>
> Roland



-- 

Chintalagiri Shashank
Indian Institute of Technology, Kanpur

http://blog.chintal.in