id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	difficulty
1372	mailbox timeouts and thread signaling	Caolan McMahon	Kon Lovett	"There appears to be a scheduler problem in the mailbox egg. If I signal a thread waiting on mailbox-receive! with a timeout, the program hangs and csi eats all my cpu.

{{{#!scheme
(use srfi-18 mailbox)

(define mbox (make-mailbox))
(define primordial (current-thread))

(define t (thread-start! (lambda ()
                           (thread-sleep! 1)
                           (thread-signal! primordial 'example))))

;; this hangs forever and eats all my cycles (with timeout)
(print (mailbox-receive! mbox 4))

;; this exits as expected with the 'example exception (no timeout)
(print (mailbox-receive! mbox))
}}}"	defect	assigned	major	someday	extensions	4.12.0		mailbox