2016-10-26 20:36 GMT+02:00 Noam Postavsky <npostavs@users.sourceforge.net>:

> On Wed, Oct 26, 2016 at 12:09 PM, Herwig Hochleitner
> <hhochleitner@gmail.com> wrote:
> > Hi,
> >
> > I've been hunting a segfault during usage of rgrep for some time, now
> I've
> > managed to catch it in gdb. From the looks of it, BEGV_ADDR is changed
> > during a single run of search_buffer, which leaves a stale pointer in a
> > local variable.
>
>
> This is almost certainly the same bug as #24358. You can try building
> with REL_ALLOC=no, or applying
> https://debbugs.gnu.org/cgi/bugreport.cgi?msg=225;att=2;
> bug=24358;filename=v4-0002-Inhibit-buffer-relocation-
> during-regex-searches.patch.
>

That looks like the issue. I'll do a test build, and if successful, will
add the patch to NixOS' emacs 25.1 build.

Thanks!