Xref: utzoo comp.unix.wizards:10332 comp.periphs:1119 Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!nosc!ucsd!rutgers!gatech!emory!km From: km@emory.uucp (Ken Mandelberg) Newsgroups: comp.unix.wizards,comp.periphs Subject: Sun ALM2 Problem (Ciprico Prob?) Message-ID: <3123@emory.uucp> Date: 9 Aug 88 15:04:08 GMT Organization: Math & Computer Science, Emory University, Atlanta Lines: 28 We are running SunOS 4.0 on a Sun 4/280. We are having a serious problem with our ALM2. After a few hours from boot the ALM2 goes into what I call "history" mode. That means that when a new character is received by the ALM2 it sends an old character to the CPU (maybe with a 20 character lag). Each keystroke forces out one of the old waiting characters. From time to time it is also possible for the whole machine to hang until a new character is sent to the ALM2. Sun has some ALM2 patches for SunOS 4.0, but none of them fix our problem, nor does our problem seem to match the abstracts of the known problems. My interpretation of the symptoms is that some of the ALM2 interrupts are being lost. The device worked properly under SunOS 3.2, so we don't think its hardware. Since we went to SunOS 4.0, we also have added a Ciprico 3200 disk controller with NEC drives, to supplement an existing Xylogics 451 with Fujitsu drives. The Ciprico is the only non-Sun hardware and of course is a bit suspect. Has anyone had a similar problem, or have any ideas? I would like to hear from anyone else running a Sun 4 under SunOS 4.0 with a Ciprico and ALM2. -- Ken Mandelberg | {decvax,sun!sunatl,gatech}!emory!km UUCP Emory University | km@emory BITNET Dept of Math and CS | km@emory.ARPA ARPA,CSNET Atlanta, GA 30322 | Phone: (404) 727-7963