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Date:      Sun, 22 Mar 1998 00:46:28 -0800 (PST)
From:      Bob Vaughan <techie@tantivy.stanford.edu>
To:        admin@www.megido.inter.net.il (Gilad Rom)
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: Surprise Reboots
Message-ID:  <199803220846.AAA09868@tantivy.stanford.edu>
In-Reply-To: <Pine.BSF.3.96.980322083859.9985A-100000@www.megido.inter.net.il> from Gilad Rom at "Mar 22, 98 08:49:42 am"

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I have also experienced a lot of spontaneous reboots and freezes..
sometimes the machine will do a full reboot, and at other times, it just 
freezes up, and does not respond (except to ping..).
this is with a p5-200 on a IWill P55TV motherboard (built-in adaptech 2940au)
64mb ram, 3c905, sb16, another 2940, and a svga card.. hp6020 on the onboard
2940 (ahc0), and 4 disks and another cdrom on the other 2940 (ahc1) 
currently running 2.2-stable from 980320, but the problem has appeared
numerous times since upgrading to 2.2-stable late last year..

I also have a 486dx2-66 running 2.2-stable of 980223, which has not 
showed the same problem (but is also not used as much.. mostly as a ppp
router..)

both of these systems are on a UPS, and local utility power has been stable.
I leave them up 24x7.

NFS is used to export a few filesystems from the pentium to the 486, but
not the other way around.

most of the reboots have happened during a buildworld, or when a buildworld
was left running went I went to bed (and woke up to unclean filesystems)

I thought this might be a hardware problem, but i'm not sure.. I have not
changed the hardware since this problem first appeared, and the machine 
was very stable under 2.2.5-release.

I cvsup every day or so, and buildworld, if this is successful, then I
installworld, build a kernel, and reboot..  if I have to restart buildworld,
then I usually cvsup again before doing so.. 

(possibly unrelated, but I have been able to crash XF86331 on this machine
as well, by opening 2 windows with /usr/ucb/mail running, and closing them
at the same time.. haven't yet tried it with XF86332..)


> I've got a new box, about two weeks ago, to replace my good ol' DX2/66.
> This box is an Intel Pentium 200Mhz, has a 430TX Motherboard, 32MB on one
> SDRAM chip, and an ESS Soundcard, a x20 IDE CDROM + 4.3GB EIDE Western
> Digital Harddrive, and an ATI 3D Rage II. Ofcourse, the minutes I got it
> I happily installed FreeBSD on it, from a 2.2.5-RELEASE CD I had burned a
> couple of days before. Everything seemed to go fine, when suddenly the box
> rebooted. I thought it had to be a power surge or something like that, so
> I just carried on. (When I just got the machine it had a 166Mhz CPU in it)
> On the past two weeks, the machine has rebooted on me on random times,
> Without any warning. Once make buildworld completes, and another time it
> simply reboots in the middle of the process. 
> Thinking it had to be a hardware problem, I have changed the SDRAM chip
> and upgraded the CPU to a 200Mhz one. I have also cvsup'd to the latest
> -STABLE sources since, and did a 'make world -j4' with the new chips.
> it went fine. for the last couple of days, everything seems to be going
> fine. Last night, I left my box on at night while downloading xemacs20.
> guess what I found out when I got up in the morning?
> 
> mount R/W of / failed - file system is not clean! fun fsck manually
> ...
> 
> which means the box had rebooted just like it did before.
> I have no explanation for this, except I get kernel double faults
> sometimes, right before the reboot. I'd tell ya what they say, except it
> reboots right after that.
> 
> Anyway - If someone has similar a similar problem - or similar hardware - 
> Id really like to know about it.
> Thanks.
> 					Gilad Rom.
>  
> 
> #I know there are no monsters... Then why do they keep chasing me??
> 
> 
> 
> 
> 
> 
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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> 


-- 
               -- Welcome My Son, Welcome To The Machine --
Bob Vaughan  | techie@w6yx.stanford.edu | kc6sxc@w6yx.ampr.org
             | techie@t.stanford.edu	| KC6SXC@W6YX.#NCA.CA.USA.NOAM
	     | P.O. Box 9792, Stanford, Ca 94309-9792
-- I am Me, I am only Me, And no one else is Me, What could be simpler? --

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