Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site oscvax.UUCP Path: utzoo!utcs!oscvax!ron From: ron@oscvax.UUCP (Ron Janzen) Newsgroups: net.unix-wizards Subject: Killing processes that are sleeping with -ve priority Message-ID: <366@oscvax.UUCP> Date: Fri, 12-Jul-85 15:46:01 EDT Article-I.D.: oscvax.366 Posted: Fri Jul 12 15:46:01 1985 Date-Received: Fri, 12-Jul-85 17:27:58 EDT Distribution: net Organization: Ontario Science Centre, Toronto Lines: 21 Occasionally I will run into a process that is sleeping with a negative priority. It is immune to all forms of kill. These processes usually occur in conjunction with the tape drive but they have happened with ttys and a frame buffer that we have on our system. When this happens it hangs up the respective device. In the past I have always had to reboot the system to unhang the device. I have also tried turning the power off to the device in the hopes that this would kick the driver awake. I was wondering if there is some magic (poke some magic address in /dev/kmem, etc) I can do to tell the driver to stop being a pain in the $%#. I am running on a VAX 750 under bsd4.1 (no source) with a TS-11 tape drive. When I do a ps on the offending process it tells me it is at PRI -5 and the wait channel (WCHAN) points to a thing called _ctsbuf. Well I have to go and reboot the system :-). Thanks in advance for any help. -- Ron Janzen Ontario Science Centre, Toronto ...!{allegra,ihnp4,linus,decvax}!utzoo!oscvax!ron