bug#16901: 24.3.50; emacs_backtrace.txt

[Juanma Barranquero]

>> compact_small_strings at alloc.c:1960
>> sweep_strings at alloc.c:1890
>> gc_sweep at alloc.c:6333
>> Fgarbage_collect at alloc.c:5572
>> maybe_gc at lisp.h:4518

What it is quite puzzling is that Drew is basically using the same
builds than I do (in quite different ways, of course), and yet I've
got very few gc crashes, perhaps a couple in the last month, while he
seems to get them a lot.