Hi!
Andy Wingo skribis:
> To be clear, here's the series of events. Firstly, know that defining a
> syntax parameter is like:
Thanks for the clear explanation!
>> So I came up with ‘define-syntax-parameter-once’, which is like
>> ‘define-once’ but for syntax parameters (note that we can’t use
Hi!
On Wed 06 Feb 2019 15:48, Ludovic Courtès writes:
> I drew the conclusion that our syntax parameter is redefined when we
> compile or when we load (guix monads), so there’s a chance that we get
> to see the wrong value when we expand (guix monads) (I’m not entirely
> sure about the exact seq
Hello Andy!
Since guix-core.drv is the best reproducer I have so far for this syntax
parameter crash, I modified (guix self) to print the name of the files
it’s compiling, and here’s the crash I got (on a 24-core machine):
--8<---cut here---start->8---
building
On Wed 09 May 2018 11:23, l...@gnu.org (Ludovic Courtès) writes:
>> Is the memoization you are referring to the "set!" in the "lazy" form in
>> ice-9/eval.scm ? Or something else? FWIW I would not think the "set!"
>> could be the issue, at least on x86, but who knows.
>
> Actually I’m not sure e
Hello Andy!
Andy Wingo skribis:
> On Mon 30 Apr 2018 23:39, l...@gnu.org (Ludovic Courtès) writes:
>
>> So the problem, AIUI, is that psyntax evaluates syntax parameters using
>> ‘primitive-eval’ (via ‘eval-local-transformer’), but memoization in
>> (ice-9 eval) is not thread-safe, hence the ran
Hi,
On Mon 30 Apr 2018 23:39, l...@gnu.org (Ludovic Courtès) writes:
> So the problem, AIUI, is that psyntax evaluates syntax parameters using
> ‘primitive-eval’ (via ‘eval-local-transformer’), but memoization in
> (ice-9 eval) is not thread-safe, hence the random crashes.
Sorry I've been a bit
l...@gnu.org (Ludovic Courtès) skribis:
> With Guile 2.2.3 a similar program triggers a crash very quickly:
Even simpler:
--8<---cut here---start->8---
$ guile ../guile-debugging/syntax-parms.scm
;;; note: source file /home/ludo/src/guix/../guile-debugging/sy
