Re: crashes with Fibers

[Amirouche Boubekki <amirouche@hypermove.net>]

On 2018-07-01 15:09, Clément Lassieur wrote:
> Amirouche Boubekki <amirouche@hypermove.net> writes:
> 
>> Sorry, I did not read the code. What are you trying to achieve?
> 
> Within a fiber, I need to spawn several Guile-Git clones in parallel.
> Since they block the Fibers scheduler, they need to be in separate
> threads.

I tried that in the past it was working, but don't remember correctly
how I did.

epoll is dead seems to indicate that there is no fiber scheduler running
from the thread your are calling put-message. This might be a design 
decision
or not. My understanding is that your code should work as intended.

Anyway, try to spawn the thread and/or create the channel before you
run fibers. I can't try that myself because of my slow connection which
takes ages to install guile-fibers.

Something like:

(define (test6)
   (let ((channel (make-channel)))
     (call-with-new-thread
      (lambda ()
        (put-message channel "hello world")))
     (run-fibers
      (lambda ()
        (spawn-fiber
         (lambda ()
           (format #t "~a~%" (get-message channel)))))
     #:drain? #t)))