[CLUE-Tech] Re: CLUE-Tech digest, Vol 1 #63 - 5 msgs

Mon Nov 6 17:14:17 MST 2000

Hey guys, I'll throw my two cents in here:  The stepping is actually one of
the numbers written on the processor itself.  So if all numbers match you
know you're in business.  But that may not actually be necessary becuase
other factors can vary and still be the same stepping.  Stepping is the
sequence of minor modifications or bug fixes made to the processor itself. 
So yes, I'd say absolutely the stepping would need to match.  Go to Intel's
web site.  There is an online document that shows how to read all the numbers
on your processors and gives all the stepping information.  Good luck.

Randy Cordell

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> Today's Topics:
> 
>   1. Re: SMP install --> system hang (Match Grun)
>   2. Re: SMP install --> system hang (Lynn Danielson)
>   3. Re: SMP install --> system hang (Jeffery Cann)
>   4. Re: SMP install --> system hang (Lynn Danielson)
>   5. Re: SMP install --> system hang (Lynn Danielson)
> 
> --__--__--
> 
> Message: 1
> Date: Fri, 03 Nov 2000 14:04:52 -0700
> From: Match Grun <match at dimensional.com>
> To: clue-tech at clue.denver.co.us
> Subject: Re: [CLUE-Tech] SMP install --> system hang
> Reply-To: clue-tech at clue.denver.co.us
> 
> Jeff,
> 
> I have installed RH6.2 successfully on two dual-processor machines with
> no problems.
> 
> One motherboard is the ATrend 6260. The only real problem I had with
> this
> machine was an occasional lockup when running as a workstation. I think
> either X or my Voodoo 3 video card caused problems. This machine is now
> running as a headless server with an ATI video card and no problems.
> This is running with the stock SMP kernel that was installed by the
> RedHat
> installer.
> 
> The other motherboard is a Tyan 1832DL. I chose this one because it is
> the same as VALinux use in their systems. This motherboard rocks and
> I have had not one problem with this machine. I recompiled the kernel to
> 
> suit my hardware and remove unnecessary modules.
> 
> The RedHat installation will detect an SMP configuration and will
> install
> two kernels. The non-SMP will be selected by default with LILO.
> 
> I do believe that the choice of motherboard is critical to the success
> of
> the installation. I know that the RedHat website has recommended
> motherboards to avoid in the past.
> 
> Also, check the latest Linux Journal for comments on hardware. Note
> their
> comments on heat that is generated by running dual processors. Also, if
> you have SCSI-UW or any disks that spin at 7,200 rpm, the amount of
> heat generated is astounding. The 10,000 rpm and the newer 15,000 rpm
> drives output even more heat. Those bits must be generating a lot of
> heat from friction at 160 Mb/sec!!!
> 
> Match
> 
> Jeffery Cann wrote:
> 
> > Dual Pentium processors, 128 MB
> >
> > Tried RHAT 6.2 & Slackware 7.1 - As the system is loaded onto hard
> > drive, at the same point the install hangs.
> >
> > Any special incantations for installing SMP linux boxes?
> >
> > Jeff
> >
> > --
> > jccann [at] home [dot] com
> >
> > _______________________________________________
> > CLUE-Tech mailing list
> > CLUE-Tech at clue.denver.co.us
> > http://clue.denver.co.us/mailman/listinfo/clue-tech
> 
> 
> --__--__--
> 
> Message: 2
> Date: Fri, 03 Nov 2000 14:42:15 -0700
> From: Lynn Danielson <Lynn.Danielson at clue.denver.co.us>
> Organization: Colorado Linux Users & Enthusiasts
> To: clue-tech at clue.denver.co.us
> Subject: Re: [CLUE-Tech] SMP install --> system hang
> Reply-To: clue-tech at clue.denver.co.us
> 
> Jeffery Cann wrote:
> > 
> > Dual Pentium processors, 128 MB
> > 
> > Tried RHAT 6.2 & Slackware 7.1 - As the system is loaded onto hard
> > drive, at the same point the install hangs.
> > 
> > Any special incantations for installing SMP linux boxes?
> 
> The stepping needs to be the same for both processors -- are they?
> Does the machine boot up fine in UP mode?  Are you using a stock
> SMP kernel or building your own?
> 
> Lynn
> 
> --__--__--
> 
> Message: 3
> Date: Fri, 03 Nov 2000 16:53:11 -0700
> From: Jeffery Cann <jccann at home.com>
> To: clue-tech at clue.denver.co.us
> Subject: Re: [CLUE-Tech] SMP install --> system hang
> Reply-To: clue-tech at clue.denver.co.us
> 
> Lynn Danielson wrote:
> 
> > Jeffery Cann wrote:
> > >
> > > Dual Pentium processors, 128 MB
> > >
> > > Tried RHAT 6.2 & Slackware 7.1 - As the system is loaded onto hard
> > > drive, at the same point the install hangs.
> > >
> > > Any special incantations for installing SMP linux boxes?
> >
> > The stepping needs to be the same for both processors -- are they?
> 
> What is stepping?  Is this the clock speed?
> 
> > Does the machine boot up fine in UP mode?  Are you using a stock
> > SMP kernel or building your own?
> 
> UP = single processor?
> 
> Jeff
> 
> --
> jccann [at] home [dot] com
> 
> 
> 
> 
> --__--__--
> 
> Message: 4
> Date: Sat, 04 Nov 2000 11:07:24 -0700
> From: Lynn Danielson <lynnd at techangle.com>
> Organization: Colorado Linux Users & Enthusiasts (CLUE)
> To: clue-tech at clue.denver.co.us
> Subject: Re: [CLUE-Tech] SMP install --> system hang
> Reply-To: clue-tech at clue.denver.co.us
> 
> Jeffery Cann wrote:
> > 
> > Lynn Danielson wrote:
> > 
> > > Jeffery Cann wrote:
> > > >
> > > > Dual Pentium processors, 128 MB
> > > >
> > > > Tried RHAT 6.2 & Slackware 7.1 - As the system is loaded onto hard
> > > > drive, at the same point the install hangs.
> > > >
> > > > Any special incantations for installing SMP linux boxes?
> > >
> > > The stepping needs to be the same for both processors -- are they?
> > 
> > What is stepping?  Is this the clock speed?
> 
> No.  It has to do with the manufacture of the cpu.
> I won't claim to understand it, but the stepping
> must be the same for both of your processors. 
> This is why Pentium Pro's were commonly sold in
> matched pairs.  If the Pentium processors you
> are using are not from the same lot, you'll need
> to check their model/serial numbers against
> Intel's database to check what the stepping
> level is for each processor.  They need to have
> the same stepping level for smp.
> 
> For some more info, check out:
> http://www.tomshardware.com/cpu/96q3/960714/index.html
>  
> > > Does the machine boot up fine in UP mode?  Are you using a stock
> > > SMP kernel or building your own?
> > 
> > UP = single processor?
> 
> Yes -- uniprocessor.
> 
> 
=== message truncated ===

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