Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!chinacat!chip From: chip@chinacat.unicom.com (Chip Rosenthal) Newsgroups: comp.unix.xenix.sco Subject: Re: Xenix-Digiboard Problems Message-ID: <1991May27.013659.916@chinacat.unicom.com> Date: 27 May 91 01:36:59 GMT References: <1991May26.201728.26322@ncep1.uucp> Organization: Unicom Systems Development, Inc. Lines: 30 In article <1991May26.201728.26322@ncep1.uucp> tomj@pnet16.cts.com (Tom Jenkins) writes: >The problem is that our Xenix system hangs >every two-three weeks for no apparent reason. I'm not sure why you are blaming the Digiboard. The PC/8e is a fine card - the one I recommend for 8-port UNIX and XENIX systems. I'd suggest that you are running out of clists. If you've got eight ports activly banging away - ain't no way the distributed configuration is going to work without hanging. Increase NCLIST and rebuild your kernel. (I won't repeat the procedure - I summarized it earlier today in another article.) TFM (section 8.7.2) in the administrator's guide suggests 5 to 10 clists is the average required per terminal. (Don't count just serial lines - you've got a bunch of multiscreen's too, right?) The max is 16. So, if you've got 8 serial lines and 4 multi screens active, that means you need 60 to 120 clists average, 192 maximum. SCO distributes XENIX with NCLIST set to 100. I'd recommend 200 for your configuration. Systems do wierd things when you run out of clists - kinda like what you are describing. P.S. It sure would be nice to have a `crash' program for XENIX to debug these sorts of things. -- Chip Rosenthal | Don't play so Unicom Systems Development 512-482-8260 | loud, Mr. Collins.