From owner-freebsd-hackers Tue May 18 12:45:33 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [209.157.86.2]) by hub.freebsd.org (Postfix) with ESMTP id 4640F152B9 for ; Tue, 18 May 1999 12:45:31 -0700 (PDT) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.9.3/8.9.1) id MAA35770; Tue, 18 May 1999 12:45:26 -0700 (PDT) (envelope-from dillon) Date: Tue, 18 May 1999 12:45:26 -0700 (PDT) From: Matthew Dillon Message-Id: <199905181945.MAA35770@apollo.backplane.com> To: Wes Peters Cc: Dan Nelson , Stefan Bethke , Kris Kennaway , "Ueda, Kazukiyo" , hackers@FreeBSD.ORG Subject: Re: Seti project / stats reset, new version available References: <224739.3136033369@d225.promo.de> <37419AF0.93569574@softweyr.com> <19990518121747.A61302@dan.emsphone.com> <3741BC2C.BA0C1871@softweyr.com> Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG :Dan Nelson wrote: :> :> Problem is that idprio isn't safe. I used to idprio the rc5client, but :> within a day or do the machine would lock up. Rc5client would get a :> lock on the root of the filesystem at idprio, and if there was another :> process running at 100% CPU, rc5client would never get a chance to :> unlock, causing all the other processes on the system to hang. :> :> See PR kern/5641. : :Hmmm. Can you say "inversion proof semaphore?" Bad news, huh? : :-- : "Where am I, and what am I doing in this handbasket?" : :Wes Peters Softweyr LLC :http://www.softweyr.com/~softweyr wes@softweyr.com Yes, this is a very real problem. I forgot to mention it. -Matt Matthew Dillon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message