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Avoid asynchronous channel finalization, which could lead to segfaults due to
libssh not being thread-safe: <https://bugs.gnu.org/26976>.
--- guile-ssh-0.11.0/modules/ssh/dist/node.scm 2017-06-13 14:37:44.861671297 +0200
+++ guile-ssh-0.11.0/modules/ssh/dist/node.scm 2017-06-13 14:38:02.841580565 +0200
@@ -391,11 +391,18 @@ listens on an expected port, return #f o
"Evaluate QUOTED-EXP on the node and return the evaluated result."
(let ((repl-channel (node-open-rrepl node)))
(rrepl-skip-to-prompt repl-channel)
- (call-with-values (lambda () (rrepl-eval repl-channel quoted-exp))
- (lambda vals
- (and (node-stop-repl-server? node)
+ (dynamic-wind
+ (const #t)
+ (lambda ()
+ (rrepl-eval repl-channel quoted-exp))
+ (lambda ()
+ (when (node-stop-repl-server? node)
(node-stop-server node))
- (apply values vals)))))
+
+ ;; Close REPL-CHANNEL right away to prevent finalization from
+ ;; happening in another thread at the wrong time (see
+ ;; <https://bugs.gnu.org/26976>.)
+ (close-port repl-channel)))))
(define (node-eval-1 node quoted-exp)
"Evaluate QUOTED-EXP on the node and return the evaluated result. The
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