Return to BSD News archive
Newsgroups: comp.unix.bsd Path: sserve!manuel!munnari.oz.au!uunet!usc!rpi!newsserver.pixel.kodak.com!psinntp!psinntp!dg-rtp!ponds!rivers From: rivers@ponds.uucp (Thomas David Rivers) Subject: Re: NMI probs and messages. Message-ID: <1992Aug27.224941.9527@ponds.uucp> References: <1992Aug22.151608.19404@ponds.uucp> <cproto.714656525@marsh> <1992Aug24.221348.14876@bernina.ethz.ch> Date: Thu, 27 Aug 1992 22:49:41 GMT Lines: 39 Just to follow up on my own posting, and the thread it seems to be going, I can pretty much get the NMI to occur by building the kernel over-and-over in a for loop. After a couple of hours - there it is... It doesn't seem to occur if I let the machine simply sit there for days on end (I waited three days.) It seems to occur more frequently if I disable the recognition of the match coprocessor in npx.c. I'm running a kernel w/ Frank Maclachlan's (fpm@crash.cts.com) dma fixs and David Greenman's (davidg@agora.rain.com) general file system/kernel improvements. With these, the NMI seems to be a little more regular. Finally, after the NMI, I can now pretty reliably get the following crash (from /var/log/messages): Aug 27 09:14:54 puddles /386bsd: Aug 27 09:14:54 puddles /386bsd: NMI port 61 a0, port 70 ff Aug 27 12:30:03 puddles /386bsd: panic: remrq Aug 27 12:30:03 puddles /386bsd: trap type 12 code = fdbf0000 eip = fe025c63 cs Aug 27 12:30:03 puddles /386bsd: panic: trap Aug 27 12:30:03 puddles /386bsd: Aug 27 12:30:04 puddles /386bsd: The operating system is saving a copy of RAM memory to device 1, offset 0 Aug 27 12:30:04 puddles /386bsd: (hit any key to abort): [ amount left to save (MB) ] trap type 12 code = fdbf00 Aug 27 12:30:04 puddles /386bsd: panic: trap Aug 27 12:30:04 puddles /386bsd: Aug 27 12:30:04 puddles /386bsd: The operating system is saving a copy of RAM memory to device 1, offset 0 Aug 27 12:30:04 puddles /386bsd: (hit any key to abort): [ amount left to save (MB) ] -- device not ready Aug 27 12:30:04 puddles /386bsd: system rebooting. Aug 27 12:30:04 puddles /386bsd: I'm curious as to what the empty messages could be, and what trap type 12 is.... I'm hoping to find the time to wander through the sources and figure this one out; but if you know what this is, don't hesitate to post. - Dave R. - (rivers@ponds.uucp)