linux troubles on a 486

linux troubles on a 486

Post by Seva Batki » Sat, 12 Jul 1997 04:00:00



Hi

I am running linux on a 486 DX4 133Mhz machine and it is very unstable.
I run this machine as a terminal server, and it is on all the time. What
happens is that I get segmentation faults, page faults, sector misreads,
everything strange. I though it was the hard drive, so I replaced it
with a brand new WD 1.6Gb and the problem still remained. It is a brand
new 486/PCI motherboard (do not know who it is made by) and a really old
video card. Other than that there is a PCI network card 3C905 (problems
were before it too) and a Comtrol RocketPort 8port ISA controller.

if anyone has any suggestions please post and reply (please do both,
since I don't always have access to news).


seva batkin
Northern Telecom

 
 
 

linux troubles on a 486

Post by Frank Sweetse » Sat, 12 Jul 1997 04:00:00



> Hi

> I am running linux on a 486 DX4 133Mhz machine and it is very unstable.
> I run this machine as a terminal server, and it is on all the time. What
> happens is that I get segmentation faults, page faults, sector misreads,
> everything strange. I though it was the hard drive, so I replaced it
> with a brand new WD 1.6Gb and the problem still remained. It is a brand
> new 486/PCI motherboard (do not know who it is made by) and a really old
> video card. Other than that there is a PCI network card 3C905 (problems
> were before it too) and a Comtrol RocketPort 8port ISA controller.

Try replacing the memory.  It's often the fussiest piece on board, and bad
memory is exactly consistent with that kind of completely inconsistent
errors.

--
Windows: I can play Doom!              |RedHat Linux 2.0.31pre-2 i486
Linux: I can be a file server, be a Web|Because reboots are for upgrades!
server, run the accounting package with|http://www.wpi.edu/~rasmusin/pgp.html
twelve terminals AND play Doom!        |for pgp key.        frank sweetser

 
 
 

linux troubles on a 486

Post by Henrik Carlqvis » Sat, 12 Jul 1997 04:00:00



> I get segmentation faults, page faults, sector misreads,
> everything strange. I though it was the hard drive, so I replaced it
> with a brand new WD 1.6Gb and the problem still remained.

If you have parity on your RAM, make sure parity check is turned on in
CMOS setup. If you don't have parity, try to replace the SIMMS. If you
are lucky there is only loose contact in the SIMM socket and it will be
enough to remove the SIMMS and insert them again. More likely, at least
one of your simms are broken.

If it won't help to replace the simms it could also be the cache memory.
Try to disable both the internal and external cache in the CMOS setup
and see if the problem dissapears.

regards Henrik

--
spammer strikeback:


 
 
 

linux troubles on a 486

Post by Jim Deatsc » Sun, 13 Jul 1997 04:00:00



> Hi

> I am running linux on a 486 DX4 133Mhz machine and it is very
> unstable.
> I run this machine as a terminal server, and it is on all the time.
> What
> happens is that I get segmentation faults, page faults, sector
> misreads,
> everything strange. I though it was the hard drive, so I replaced it
> with a brand new WD 1.6Gb and the problem still remained. It is a
> brand
> new 486/PCI motherboard (do not know who it is made by) and a really
> old
> video card. Other than that there is a PCI network card 3C905
> (problems
> were before it too) and a Comtrol RocketPort 8port ISA controller.

> if anyone has any suggestions please post and reply (please do both,
> since I don't always have access to news).


> seva batkin
> Northern Telecom

Seva,do you have reboot, strange problems with the machine under another
o/s?  has the machine always done this?  Might it be hardware related,
like a processor heat problem?
Just a thought,

Jim

 
 
 

linux troubles on a 486

Post by Henrik Storn » Sun, 13 Jul 1997 04:00:00



Quote:>I am running linux on a 486 DX4 133Mhz machine and it is very unstable.
>I run this machine as a terminal server, and it is on all the time. What
>happens is that I get segmentation faults, page faults, sector misreads,
>everything strange. I though it was the hard drive, so I replaced it

Could be bad memory chips. See http://www.bitwizard.nl/sig11/ for the sig11
FAQ, which describes various techniques for dealing with bad memory.

--

"The POP3 server service depends on the SMTP server service, which
 failed to start because of the following error:
 The operation completed successfully." -Windows NT Server v3.51

 
 
 

linux troubles on a 486

Post by luis.sisme.. » Sun, 13 Jul 1997 04:00:00




> > Hi

> > I am running linux on a 486 DX4 133Mhz machine and it is very unstable.
> > I run this machine as a terminal server, and it is on all the time. What
> > happens is that I get segmentation faults, page faults, sector misreads,
> > everything strange. I though it was the hard drive, so I replaced it
> > with a brand new WD 1.6Gb and the problem still remained. It is a brand
> > new 486/PCI motherboard (do not know who it is made by) and a really old
> > video card. Other than that there is a PCI network card 3C905 (problems
> > were before it too) and a Comtrol RocketPort 8port ISA controller.

> Try replacing the memory.  It's often the fussiest piece on board, and bad
> memory is exactly consistent with that kind of completely inconsistent
> errors.

Also check if the processor fan is really colling it.

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linux troubles on a 486

Post by Bjarne Nygaar » Mon, 14 Jul 1997 04:00:00


Hi...


> Hi

> I am running linux on a 486 DX4 133Mhz machine and it is very unstable.
> I run this machine as a terminal server, and it is on all the time. What
> happens is that I get segmentation faults, page faults, sector misreads,
> everything strange. I though it was the hard drive, so I replaced it
> with a brand new WD 1.6Gb and the problem still remained. It is a brand
> new 486/PCI motherboard (do not know who it is made by) and a really old
> video card. Other than that there is a PCI network card 3C905 (problems
> were before it too) and a Comtrol RocketPort 8port ISA controller.

> if anyone has any suggestions please post and reply (please do both,
> since I don't always have access to news).


> seva batkin
> Northern Telecom

To me it sounds like hardware problems: memory with too few waits and/or
bad occationally bad connections to the disk.
The last thing could/might be remedied by massaging the connectors. :)

cu
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linux troubles on a 486

Post by Carl Wyl » Mon, 14 Jul 1997 04:00:00



>> I am running linux on a 486 DX4 133Mhz machine and it is very unstable.
>> I run this machine as a terminal server, and it is on all the time. What
>> happens is that I get segmentation faults, page faults, sector misreads,
>> everything strange. I though it was the hard drive, so I replaced it
>> with a brand new WD 1.6Gb and the problem still remained. It is a brand
>> new 486/PCI motherboard (do not know who it is made by) and a really old
>> video card. Other than that there is a PCI network card 3C905 (problems
>> were before it too) and a Comtrol RocketPort 8port ISA controller.

>> if anyone has any suggestions please post and reply (please do both,
>> since I don't always have access to news).


>> seva batkin
>> Northern Telecom

I have seen wierd problems with video cards that can cause memory problems.
I had a 386 with a old video card (dos based) The video card would
occationally case segmentation/parity erorrs at random times. I found
that no diagnostic routine would find the problem, because the problem
was so intermitant.

I would suggest getting a new video card. (even a cheap ISA card)

Carl Wyles
--

Quote:>>>>> All flames sent to Demon Dragon familiar for appropriate response <<<<<

I have changed my e-mail address to avoid spam/junk mail my real addrress is:

Good advice is ignored. Ok advice is used. Bad advice is flamed forever.
 
 
 

linux troubles on a 486

Post by gippa » Wed, 16 Jul 1997 04:00:00


Is your processor overclocked?


> I am running linux on a 486 DX4 133Mhz machine and it is very unstable.
> I run this machine as a terminal server, and it is on all the time. What
> happens is that I get segmentation faults, page faults, sector misreads,
> everything strange. I though it was the hard drive, so I replaced it
> with a brand new WD 1.6Gb and the problem still remained. It is a brand
> new 486/PCI motherboard (do not know who it is made by) and a really old
> video card. Other than that there is a PCI network card 3C905 (problems
> were before it too) and a Comtrol RocketPort 8port ISA controller.

 
 
 

linux troubles on a 486

Post by Sean P. Sitte » Wed, 16 Jul 1997 04:00:00



> Is your processor overclocked?


> > I am running linux on a 486 DX4 133Mhz machine and it is very unstable.
> > I run this machine as a terminal server, and it is on all the time. What
> > happens is that I get segmentation faults, page faults, sector misreads,
> > everything strange. I though it was the hard drive, so I replaced it
> > with a brand new WD 1.6Gb and the problem still remained. It is a brand
> > new 486/PCI motherboard (do not know who it is made by) and a really old
> > video card. Other than that there is a PCI network card 3C905 (problems
> > were before it too) and a Comtrol RocketPort 8port ISA controller.

-It's actually probably a later 486 generation AMD processor.

-Sean P. Sitter

 
 
 

linux troubles on a 486

Post by FLORIAN SCHIE » Wed, 16 Jul 1997 04:00:00




> > Is your processor overclocked?


> > > I am running linux on a 486 DX4 133Mhz machine and it is very unstable.
> > > I run this machine as a terminal server, and it is on all the time. What
> > > happens is that I get segmentation faults, page faults, sector misreads,
> > > everything strange. I though it was the hard drive, so I replaced it
> > > with a brand new WD 1.6Gb and the problem still remained. It is a brand
> > > new 486/PCI motherboard (do not know who it is made by) and a really old
> > > video card. Other than that there is a PCI network card 3C905 (problems
> > > were before it too) and a Comtrol RocketPort 8port ISA controller.

> -It's actually probably a later 486 generation AMD processor.

> -Sean P. Sitter

I had an almost similar problem too: i used the amd x5/133 in a board
with sis-chipset and had very strange errors. this chipset wasn't able
to use my EDO-DRAMs i had installed, with FPM-DRAM all was ok. another
thing is the first level cache mode. if you have WriteBAck there its
faster, but som boards don't support this correctly, maybe try switching
to Write through, even if it's a little bit slower.
I use a amd x5 overcloced to 160Mhz in a UMC8881 chipset board with
L1-write-trough and edo-ram and it works great.
even with the low ram performance of the umc-chipset... :)

- Florian Schiel

--
 ,--.
*********************************************************************
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**
 |--\   /--\  ./~\.   http://www.eikon.e-technik.tu-muenchen.de/~beo/ **

 L___/  \__.  `\_/'   **********************************************

 
 
 

linux troubles on a 486

Post by Dirk Geschk » Thu, 31 Jul 1997 04:00:00



> I am running linux on a 486 DX4 133Mhz machine and it is very unstable.
> I run this machine as a terminal server, and it is on all the time. What
> happens is that I get segmentation faults, page faults, sector misreads,
> everything strange. I though it was the hard drive, so I replaced it
> with a brand new WD 1.6Gb and the problem still remained. It is a brand
> new 486/PCI motherboard (do not know who it is made by) and a really old
> video card. Other than that there is a PCI network card 3C905 (problems
> were before it too) and a Comtrol RocketPort 8port ISA controller.

This sounds like a heating problem.

Do you have a cooling fan on your CPU?

Does the problem arise after the system has been stable for a long time?

How is the cooling of the hd's?

If you can't determine the problem: Open the box after an crash and check
if there are hot components in it. Maybe rearrange the cards in the slot.
Sometimes ethernet- and video-cards get very hot. So try to put them in
slots far away from each other. This could sometimes solve such problems.
Or install a fan on such cards (yes I did this on a videocard to cool the
memory and now the card works fine, but this won't be your problem),

Dirk.

 
 
 

linux troubles on a 486

Post by Bjarne Nygaar » Fri, 01 Aug 1997 04:00:00


hi..

Though I hope you have got the right answer by now, I will answer. :)

It think your problem is bad RAM timing setup. You should use less
agressive settings in the RAM timing. It is better running stable than
no running at all :) That is more WAIT states :(


> Hi

> I am running linux on a 486 DX4 133Mhz machine and it is very unstable.
> I run this machine as a terminal server, and it is on all the time. What
> happens is that I get segmentation faults, page faults, sector misreads,
> everything strange. I though it was the hard drive, so I replaced it
> with a brand new WD 1.6Gb and the problem still remained. It is a brand
> new 486/PCI motherboard (do not know who it is made by) and a really old
> video card. Other than that there is a PCI network card 3C905 (problems
> were before it too) and a Comtrol RocketPort 8port ISA controller.

> if anyone has any suggestions please post and reply (please do both,
> since I don't always have access to news).


> seva batkin
> Northern Telecom

cu
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| If you would email me remove .N.O.S.P.A.M in the
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1. wanted : 486-Computerconfiguration without any trouble under Linux ...

Hello together !

I want to buy a 486-40Mhz Computer with the typical components
like a VGA-Card

Is there someone who is using a 486-Computer and have installed the
Linux-System and works with it without any errors ??

It would be nice, when you discribe your configuration to give me
a piece of information what produkt are working error-free under
Linux.
For example : What Controller, what a VGA-Card, ..., do you use ?

Greetings from FRANK

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