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bug#42797: starting thread from an used module dead lock
From: |
Michal Herko |
Subject: |
bug#42797: starting thread from an used module dead lock |
Date: |
Mon, 10 Aug 2020 11:57:51 +0200 |
Hello,
Attempint to start a new thread from a file loaded using *use-modules*
dead locks guile.
Create a file *start.scm*
```
(define-module (start))
(use-modules
(ice-9 threads))
(call-with-new-thread
(lambda ()
(format #t "hello from thread\n")))
```
Create a file *use.scm*
```
(define-module (use))
(use-modules (start))
```
Execute start.scm:
$ guile -L . start.scm
The program should print the message end exit.
Instead it would hang forever without using cpu.
The bug displays both on guile version 2.2.7 and 3.0.4.
I was testing on debian bullseye, x86_64.
The workaround is to use *load-from-path* instead of *use-modules*.
The bug does not manifest from REPL.
use.scm
Description: Text Data
start.scm
Description: Text Data
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