bug#29372: 26.0.90; Consistent crash on Mac OS X when visiting a file

[Glenn Morris]

>> From: "John Wiegley" <johnw@gnu.org>
>> Date: Mon, 20 Nov 2017 17:57:25 -0800
[...]
>> I can help debug it under lldb, if you can tell me what to look for.
>
> First thing to look for is which of the 3 recursive calls to
> substitute_object_recurse are taken?
>
> The next question is where in the problematic file are we reading when
> the infinite recursion happens?  This could be easier to establish
> starting at read_internal_start in frame 203820 (where you can see
> what is 'stream').

Any update?