site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com Organization: Heeltoe Consulting Thought I bounce this off people here: I'm running 10.4.11 on a 64 bit ppc imac. I recently connected a bluetooth serial port. It associates and creates several /dev/cu.xxx and /dev/tty.xxx device nodes. It sort of works ok, but after a while the user process accessing it hangs. (it's running, ahem, zmodem; what can I say) I try and kill the user process and it does not die. The zombie is left in state 'E' according to ps, which is "trying to exit". I assume, basedc on some unixy notions, that a driver is sleeping in some uninterpretable way on the close or maybe last write or read. I would, however, assume that if I turned off bluetooth the proc would exit, but it does not. Also, if another proc opens the /dev/ node, when this zombie is present, it also hangs and can not be killed. It hangs in 'U', which is (surprise) uninterruptable wait. I thought we got ride of uninterruptable sleeps in serial ports in the early '90s :-) The only way I have found to clear this state is to reboot. Any ideas? Any way to kill the zombie? I have not tried this in 10.5, but I will at some point. -brad _______________________________________________ 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... This email sent to site_archiver@lists.apple.com