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Re: GC and stack marking

From: Eli Zaretskii
Subject: Re: GC and stack marking
Date: Tue, 20 May 2014 22:28:48 +0300

> From: Stefan Monnier <address@hidden>
> Cc: address@hidden, address@hidden
> Date: Tue, 20 May 2014 13:54:16 -0400
> >> But it shouldn't cause any trouble (other than extra memory use).
> > It does, due to all kinds of subtleties.  The result is that the
> > large_vectors linked list gets dumped with a pointer to a non-existent
> > memory, and the dumped Emacs then crashes on the first GC when it
> > tries to traverse that linked list.
> We should fix that.

No argument here.  Otherwise the dumped Emacs crashes.

> > I think this is hopeless: I see this problem on a single system; two
> > others don't have it.  It's just some semi-random garbage somehwre on
> > the stack.
> Of course, but if you can find where it comes from, we can fix that
> one case.

I tried, but couldn't.  Suggestions for how to set up a GDB session
for that are welcome.

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