Date: Mon, 8 Feb 93 15:29:11 EST From: Dwight D. McKay (The Moderator) Reply-To: Suns-at-Home@orchestra.ecn.purdue.edu Subject: Suns-at-Home Digest V6 #6 To: Suns-at-Home-List Suns-at-Home Digest Mon, 8 Feb 93 Volume 6 : Issue 6 Today's Topics: ELC at home IPX SCSI Watchdog reset +--------------------------------------------------------------------+ | Submissions: suns-at-home \ @orchestra.ecn.purdue.edu | | Requests: suns-at-home-request > -- or -- | | Archives: suns-at-home-archives / ...rutgers!pur-ee!... | +--------------------------------------------------------------------+ ---------------------------------------------------------------------- Date: 1 Feb 1993 19:52:06 UTC From: mrapple@quack.sac.ca.us (Nick Sayer) Subject: ELC at home To: (null) One thing that should be noted with the 'pstat -T' or top output of memory usage is that the number listed may not be the actual amount of swap that the process is using at that moment. The reason for this is that a process can't shrink or "unmalloc" memory. The number you see for the process is the highest amount of space it has allocated so far. If it does a 'free' or similar pseudo-give-back, that only means that malloc will try and use that bit first before it goes to the OS to ask for more space. -- Nick Sayer | The opposite of trickle-down N6QQQ @ N0ARY.#NOCAL.CA.USA.NOAM | economics is soak-the-rich +1 408 249 9630, log in as 'guest' | economics. PGP 2.1 public key on request | ------------------------------ Date: Sun, 07 Feb 93 03:56:48 GMT From: gws@n8emr.cmhnet.org (Gary Sanders) Subject: IPX SCSI To: (null) I picked up a IPX motherboard and have it tucked away inside a PC box. I was trying to figure out how the internal SCSI buss is terminated. Normally you would only be able to put 1 scsi device inside an IPX box, but mine allows me to add several. Right now I have 2 disk, cdrom and tape on the internal connector. Its all working but am asking for problems? -- Gary W. Sanders gws@n8emr.cmhnet.org, 72277,1325 N8EMR @ N8JYV (ip addr) 44.70.0.1 [Ohio AMPR address coordinator] HAM BBS 614-895-2553 (1200/2400/V.32/PEP) Voice: 614-895-2552 (eves/weekends) ------------------------------ Date: Mon, 1 Feb 93 19:57:55 EST From: wwf@doe.carleton.ca (W. Walter Fergusson) Subject: Watchdog reset To: Suns-at-Home@ecn.purdue.edu My Sun 3/260 is suffering from watchdog reset problems. A watchdog reset occurs every 20-60 minutes. I would apreciate help in learning about watchdog resets on my machine and how to fix it. First a few questions, and then the details of my investigation so far. 1) What causes a watchdog reset on a Sun 3/260? My understanding is that it is a hardware detected inconsitency often associated with a timout while polling something. The only mention in the manuals is associated with the ie0 interface. 2) People have suggested that it might be a heat related problem. The board does run hot, but the two fans at the top work and I do not notice any thing blocking the air flow. Also the 20-60 minute period seems independent of how long the machine has been powered on. How hot can the chips get? Details: The watchdog reset seems to be independent of the hardware configuration or the software running. I get the watchdog reset with the full system or the full system minus one board (with correct jumper placement). The watchdog reset occurs when running unix or even at the prom monitor! When 4-6 watchdog resets have occurred, the prom monitor is stuck. It does not accept anything from the keyboard. The reset switch will cause another watchdog reset, but the keyboard is still frozen. I must power the machine off to talk to the prom monitor. It may be just my imagination, but the watchdog resets seem to be farther apart when I run the folowing shell script from a shell prompt in unix (multi-user or single): while true; do uptime ; done My machine hardware is configured as follows: Slot# board 1 CPU - backplane jumpers verified 2 empty 3 CG2 - backplane jumpers verified 4 8 Meg - backplane jumpers verified 5 air flow restrictor 6 8 Meg - resister terminated, backplane and front jumpers verified 7 VME SCSI - backplane jumpers verified 8 VME SMD - backplane jumpers verified 9 air flow restrictor 10 air flow restrictor 11 air flow restrictor 12 air flow restrictor I would appreciate any information. Please mail me. I will summarize to the net if requests warrent, otherwise I will mail people individually about my experience. Failing this, does anyone know a company that services sun3s? Thank you, Walter --------------------+ W. Walter Fergusson | The following quote is boring. wwf@doe.carleton.ca | The previous quote is not that exciting either. --------------------+ Winner of the hairy chested regexp award! ------------------------------ End of Suns-at-Home Digest ******************************