Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!caen!spool.mu.edu!olivea!uunet!mcsun!hp4nl!svin02!eba!ebh.eb.ele.tue.nl!wjw From: wjw@ebh.eb.ele.tue.nl (Willem Jan Withagen) Newsgroups: comp.sys.apollo Subject: Re: DN4500 arbitrarily overloads itself (was Re: (none)) Message-ID: <1227@eba.eb.ele.tue.nl> Date: 21 Jun 91 11:29:41 GMT Article-I.D.: eba.1227 References: <0677436884@INESCN.RCCN.PT> Sender: news@eb.ele.tue.nl (The News system) Reply-To: wjw@eb.ele.tue.nl Organization: Digital Systems, Eindhoven University of Technology, the Netherlands Lines: 37 In article , dpassage@soda.berkeley.edu (David G. Paschich) writes: => In article <0677436884@INESCN.RCCN.PT>, => JCF%INESCN.RCCN.PT@CUNYVM.CUNY.EDU (Joao Canas Ferreira) writes: => => During one of the last fits, the user tried to logout. After some => time, he got the (almost) usual question (Blast ? (Y/N)). After answering => Yes and waiting some time, the message 'Unable to obtain scfb hash table mutex => lock from (stream manager/ scfb)' ? => => Sounds as if maybe your machine is hitting the 64 process limit that => existed under SR 10.2. The machine we use as a mail gateway was => continually having this problem. One work-around we used was to write => a daemon which would watch for the existence of a certain file in => `node_data, and when it appeared, kill all the sendmail processes on => the machine. That way we didn't have to start a new process in order => to get the machine useable again. => => The 64 process limit was thankfully raised in 10.3 to something more => reasonable (32 processes/megabyte RAM, I believe). => There's also a patch which addresses this problem. take a look in the 9012 info and look for patch 139. Patchinfo is available for ftp at ftp.eb.ele.tue.nl in /pub/apollo Note that there was a series of sr10.2 patchs of which the last info is in the 9012 tape. Then a new series started of which the last on is 9106. Ciao, Willem Jan -- Eindhoven University of Technology DomainName: wjw@eb.ele.tue.nl Digital Systems Group, Room EH 10.10 P.O. 513 Tel: +31-40-473401 5600 MB Eindhoven The Netherlands