bug-gnu-emacs
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

bug#31549: 25.3; bytecompile fails with eval-when-compile


From: Noam Postavsky
Subject: bug#31549: 25.3; bytecompile fails with eval-when-compile
Date: Tue, 22 May 2018 19:33:03 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)

address@hidden writes:

> (byte-compile `(eval-when-compile (list ,@(make-list 2047 0))))
>
> Evaluating the form above, emacs (with -Q option) reports
>   Error: Memory exhausted--use C-x s then exit and restart Emacs
> in *Compile-Log* buffer.
> The returned value of the form is t.

The error is coming from exec_byte_code:

  if (MAX_ALLOCA / word_size <= XFASTINT (maxdepth))
    memory_full (SIZE_MAX);

It's more like a Lisp stack overflow than a memory exhausted situation
though, hardly calls for restarting Emacs.  Perhaps the byte compiler
should refuse to compile such a large expression?

I can't reproduce in Emacs 26, but only because MAX_ALLOCA is bigger, I
think.









reply via email to

[Prev in Thread] Current Thread [Next in Thread]