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List:       linux-smp
Subject:    RE: testing SMP
From:       Joe <josepha48 () yahoo ! com>
Date:       1999-07-27 17:33:43
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I am not sure that someone else did not mention this already,
but it may be worth .. okay it is worth.. switch that CPU to
another socket and seeing what happens. ie move CPU 2 to CPU 1
and CPU 1 to CPU 2.. if you still have the same result it is not
a dead processor but bad reporting, which means that something
patched wrong, probably in the proc/array.c file.. if it
switches from CPU 2 to CPU 1 after the switch then it is a dead
CPU....

Joe

--- zeit <zeit@timeghost.com> wrote:
> I used Mandrake 6 kernel 2.2.9 I believe.  It would panic
> sometimes at warm 
> boot.  I couldn't get it to work with an SMP kernel and went
> back to a 
> 2.0.3x kernel as it worked fine on Mandrake 5.3 which was
> installed when I 
> got it.  I install RH5.2 since that's what all my other boxes
> are running 
> and no problem (other than this).
> 
> I'll probably just stay with the 2.0.3x kernel for a while, I
> still don't 
> want to learn ipchains, I'm lazy..opps I meant to say busy
> (laugh)
> 
> Since the processor shows properly during boot time can I be
> safe to assume 
> that the processor is working and the usage reporting is
> incorrect?
> 
> The machine seems to work well, it didn't report any errors
> using -j300, 
> like another fella mentioned his did with that much load.
> If I have a dead processor, wouldn't there be errors showing
> that it isn't 
> responding or something?  If there isn't, maybe there should
> be.
> 
> Thanks for all the idea's, I'm finding this list very
> friendly, good job.
> 
> BTW: I am finding the list a little slow, take's about an hour
> for a post 
> to show.  Any ideas?
> 
> have fun,
> 
> zeit
> 
> >
> >
> > opps.....2.0.36 (RH5.2) with procps 1.2.7,
> procps-1.2.7.smp.patch5 and 
> the
> > smp-2.0.35.patch for the kernel since there was no 2.0.36
> patch (maybe
> > that's the problem)
> >
> 
> hmmm you may waaant to try 2.0.35 and use the procps patch on
> that kernel
> first and then patch the 2.0.35 to 2.0.36 and then to 2.0.37
> and see if 
> that
> works... I used to use that patch with no problems, but I only
> have 2 CPU's
> 
> incedentally what 2.2.x kernel did you try and when did it
> panic? there 
> were
> some problems with certian versions..also you'd need to
> upgrade some of the
> programs on your RH 5.2 system to get 2.2 kernels to work
> correctly..
> 
> >
> > SMP for the newer kernels doesn't seem to like this old
> machine.  Kernel
> > panic's and such.
> >
> > --- zeit <zeit@timeghost.com> wrote:
> > > here is cat /proc/stat
> > > CPU2 is 0, but cpuinfo registers 0,1,3,4 could this be the
> > > problem?
> > >
> > > [zeit@quad zeit]$ cat /proc/stat
> > > cpu  64637 17 23321 23673461
> > > cpu0 21762 3 17181 5901413
> > > cpu1 19108 1 4399 5916851
> > > cpu2 0 0 0 5940359
> > > cpu3 12946 13 0 5927400
> > > disk 17604 235 0 0
> > > disk_rio 10056 199 0 0
> > > disk_wio 7548 36 0 0
> > > disk_rblk 20118 398 0 0
> > > disk_wblk 15096 72 0 0
> > > page 32054 29660
> > > swap 1 0
> > > intr 7372934 5938666 7516 0 0 0 0 2 0 1 3250 1229442 17485
> > > 39093 137479 0 0
> > > ctxt 400918
> > > btime 932964273
> > > processes 2625
> > > [zeit@quad zeit]$
> > >
> > ----snip----
> 
> 
> 
> 

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