Re: Fix to long-standing crashes in GC

[Richard Stallman]

    #0  0x402ec781 in kill () from /lib/libc.so.6
    #1  0x080dfe0a in abort () at emacs.c:433
    #2  0x08128037 in mark_object (arg=1217041176) at alloc.c:5034
    #3  0x0812809a in mark_object (arg=-1463681024) at alloc.c:5051
    #4  0x08126b43 in mark_memory (start=0xbfffe070, end=0xbffff7e8)
        at alloc.c:3700
    #5  0x08126f73 in mark_stack () at alloc.c:4055

Can you figure out what data structure is being traversed by those
frames?  That's a lot of work, but it is the only way I know of to try
to debug a problem of this kind.