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| From: | Stefan Monnier |
| Subject: | bug#41321: 27.0.91; Emacs aborts due to invalid pseudovector objects |
| Date: | Mon, 25 May 2020 11:12:53 -0400 |
| User-agent: | Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
>> I think we're going to have to weaken the maybe_lisp_pointer check to
>> check only for GC_ALIGNMENT.
Sounds about right: the only alignment we really need for Lisp_Objects
is the GC_ALIGNMENT that allows us to use the 3 LSB for tags.
src/alloc.c makes efforts to ensure this alignment and for some objects
(e.g. Lisp_Floats as well as (on 32bit hosts) Lisp_Cons cells) that's
the only alignment we can meaningfully impose since those objects are
only 64bit in size.
Stefan
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