site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com John Francini On Jun 21, 2005, at 0:42, Tron Thomas wrote: What determines how much space is available for creating semaphores? _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/francini%40mac.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... The semaphore space is controlled by the kern.sysv.sem* set of sysctl(8) values. The question, though, is how many semaphores is the program using, and is it "leaking" semaphores? The default value appears to be 87381 in Panther. At work we have a program running on Mac OS X that routinely calls sem_open to created named semaphores. After the program has run for a while the sem_open command will fail with the result ENOSPC and the corresponding error string "No space left on device". This email sent to francini@mac.com This email sent to site_archiver@lists.apple.com