Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!rochester!cornell!batcomputer!hurf From: hurf@batcomputer.tn.cornell.edu (Hurf Sheldon) Newsgroups: comp.unix.wizards Subject: Ultrix1.2-uVaxII crashing - Help requested Message-ID: <1988@batcomputer.tn.cornell.edu> Date: Wed, 12-Aug-87 13:38:14 EDT Article-I.D.: batcompu.1988 Posted: Wed Aug 12 13:38:14 1987 Date-Received: Sat, 15-Aug-87 00:46:43 EDT Reply-To: hurf@tcgould.tn.cornell.edu (Hurf Sheldon) Distribution: world Organization: Cornell Theory Center, Cornell University, Ithaca NY Lines: 116 I have been getting the appended messages preceding a crash on a uVaxII running Ultrix1.2 with the following hardware: cpu 8meg Mnemonix board 1meg DEC board decqna dzv-11 dhv-11 dhv-11 dhv-11 sdc-rqd11-ec SI/sigma ESDI disc controller qdss tqk50 rqdx3 There is swap on both disk controllers This problem does not correlate with the installation of any hardware or software The only consistent things I see are the mser (memory system error register), the caer (cpu error address) and the daer (dma error address) The mser should be loaded with bits saying what the error is but I cannot find explanations in Ultrix for what they are - BSD has ka630.h (thanks Chris). The fact that the caer/daer are always the same makes me think there is a dma i/o problem and that in turn points to a disk controller problem or the dequna as the random times would seem to rule out the video and the dhv's as the crashes don't correlate at all with their use. I would appreciate: A; definitions of the terms in the error message- ie sumpar, etc B; hints on where in the documentation to find out more C; Any concrete interpretations of the data presented. D; Suggestions on how to approach a problem like this Aug 10 07:30 machine check 82: write bus error, VAP is virtual sumpar = 82 most recent virtual addr =8005fdb0 internal state =12080000 pc = 8002f98a psl = 4160008 mcesr = 0 mser = 241 caer = 3756 daer = 3756 panic: mchk panic: sleep Aug 10 10:50 machine check 80: read bus error, VAP is virtual sumpar = 80 most recent virtual addr =8001bfd8 internal state =2000002 pc = 8001bfd1 psl = d60001 mcesr = 0 mser = 241 caer = 35a0 daer = 35a0 panic: mchk Aug 12 02:10 machine check 80: read bus error, VAP is virtual sumpar = 80 most recent virtual addr =8002c428 internal state =2080003 pc = 8002c41f psl = 40c0008 mcesr = 0 mser = 241 caer = 36b7 daer = 36b7 panic: mchk panic: sleep Aug 12 11:00 machine check 80: read bus error, VAP is virtual sumpar = 80 most recent virtual addr =7ffffe78 internal state =3080001 pc = 800018c1 psl = d80008 mcesr = 0 mser = 241 caer = 3587 daer = 3587 panic: mchk machine check 80: read bus error, VAP is virtual sumpar = 80 most recent virtual addr =7fffe480 internal state =2040006 pc = 8000993f psl = 4160004 mcesr = 0 mser = 249 caer = 3587 daer = 3587 panic: mchk -- Hurf Sheldon Network: hurf@ionvax.tn.cornell.edu Lab of Plasma Studies Bitnet: hurf@CRNLION 369 Upson Hall, Cornell University, Ithaca, N.Y. 14853 ph:607 255 7267 I sold my Elan, got a job in science; Now, no one takes me seriously.