Subject: Re: bug#15688: 24.3.50; clear-temporary-overlay-map

From: Stefan Monnier <[email-masked]>
Date: Fri, 07 Mar 2014 17:34:22 -0500

> Why didn't this code

> #if GC_MARK_STACK
>          symbol_free_list->function = Vdead;
> #endif

> prevent the problem?

Indeed, that seems to be the source of the problem: if the symbol has
never been found to be dead, it should not point to a dead vector, and
if it has ever been found to be dead then its `function' cell should
hold Vdead.

        Stefan