bug#24764: 25.1.50; Another crash in automatic gc

[Eli Zaretskii]

> From: Michael Heerdegen <michael_heerdegen@web.de>
> Cc: schwab@linux-m68k.org,  24764@debbugs.gnu.org
> Date: Sat, 22 Oct 2016 16:05:29 +0200
> 
> > Another question: is the buffer 'b' here:
> >
> > > 0x000000000058aae0 in unchain_marker (marker=0x88e9968) at marker.c:605
> > > 605 for (tail = BUF_MARKERS (b); tail; prev = &tail->next, tail =
> > > *prev)
> >
> > a live buffer, or is it a buffer that was killed?  A buffer is live
> > if its name is a string, not nil.  Try this:
> >
> >   (gdb) p b->name_
> >   (gdb) xpr
> 
> says "No symbol "b" in current context" and "The history is empty".  Am
> I'm doing something wrong?

How can that be?  Are you in the correct stack frame?  What does this
show?

  (gdb) frame