Date: Sun, 24 Dec 2000 15:14:29 +0800 From: "tanbin" <tiger40490@yahoo.com> To: "Matt Rudderham" <matt@researcher.com> Cc: <freebsd-questions@freebsd.org>, "Tobias Roth" <roth@iamexwi.unibe.ch>, "Courtney Thomas" <ccthomas@flash.net>, "SILVER, MICHAEL A" <MSILVER@scana.com>, "Tom Kyle" <tom@eos.umsl.edu>, "David Talkington" <dtalk@prairienet.org> Subject: Re: mysterious power reset Message-ID: <015801c06d79$408b1120$0b00000a@yourtender.com> References: <NDBBLEKOOLGIBFPGLFEKCENFCJAA.matt@researcher.com>
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confirmed. it's due to the RealTek. one machine can now reliablly reproduce the power-reset symptoms. it's a Pentium II, 98M ram. i always put in one ethernet card only. it's a dhcp client but a nfs server (read-write), so that i can copy a 200M file from the nfs client (also the dhcp server). i tried a few DLink ethernet cards, and some no-name ethernet cards. they all end up being detected as 'rl0' (that's RealTek ethernet card No. 0). i mounted the nfs share from the nfs client, and start the 'cp'. 2-5 seconds later, i will see a message on the nfs server: ---------- rl0: no memory for tx list fatal trap 12: page fault while in kernel mode fault code = supervisor read, page not present ... current process = 19 (nfsd) --------- i changed to a fxp0 (that is Intel Pro 100) and did the same 'cp' a few times and there was no crash. then i changed back to one of the DLink cards (keeping everything else unchanged). the nfs server crashed again in the same way as before. i also remember that for some 2 weeks in November 2000 this nfs server was working fine. it was using a 'dc0' . feel free to ask me for more details. ----- Original Message ----- From: Matt Rudderham <matt@researcher.com> To: Tobias Roth <roth@iamexwi.unibe.ch>; tanbin <tanbin@empworld.com> Cc: <freebsd-questions@freebsd.org> Sent: Thursday, December 07, 2000 21:09 Subject: RE: mysterious power reset > Also, > I don't know if this would affect either of you, but this problem has popped > up a few times with some RealTek NICs. I had this problem, swapped the NIC > and my box has now been up over 40 days without a hitch. > - Matt > > > > > I experienced the very same thing two weeks ago with (then) > > FreeBSD 4.1 BETA. > > It could not have been a powerfailure, the monitor hanging on the > > same outlet > > still had power. > > > > I suspect it is a hardware problem, maybe a bad power supply. > > Healthd showed, > > that my power supply indeed delivers very unstable values. > > > > If this does not happen again, I am happy. If it does, the first > > thing I'll > > do is buy a better power supply. > > > > Of course that doesn't help you much, but I wanted you to know > > that you are > > not the only one with this problem. > > > > > > cheers, Tobe > > > > > > > > On Thu, Dec 07, 2000 at 01:00:09PM +0800, tanbin wrote: > > > Since 3 days ago, our freeBSD box has automatically power-down-then-up 3 > > > times. (This has happend only 3 times, all in the past 3 days.) > > > > > > The symptom is neither of a 'reboot' command, nor a power > > button activation, > > > but a reset button activation (or someone pressing the power > > button twice, > > > or switching off and on the power point on the wall, which are publicly > > > accessible). The last 2 times during the boot i saw "... file system not > > > cleanly unmounted. rebooting automatically". > > > > > > During all these reboots, i did not notice any power failure to > > my PC or the > > > office lighting. The freebsd box is in the same room, 20 meters > > away from > > > me. > > > > > > Is there any software/hardware fault that can trigger a > > power-reset? How do > > > I confirm the cause? If it's a disgruntled employee, then how > > do i track her > > > down? > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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