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MTRR error in Dual CPU system.

MTRR error in Dual CPU system.

Post by Hans » Sat, 22 Jul 2000 04:00:00



Hello,

My Linux system is
Motherboard: Abit BP6 Socket 370
CPU: Intel Celeron 466Mhz x2
RAM: 64M SDRAM x1
HDD: Western Digital Caviar 10.2GB x2
CD-ROM: ATAP 40X

dmesg shows the below messages.

mtrr: your CPUs had inconsistent fixed MTRR settings
mtrr: probably your BIOS does not setup all CPUs

What's mean?

I got really trouble this system. Especially, when I shutdown it,
the system stop before shutting down eth0 (NE2000 PCI Network card.) and
I just managed to shutdown it externally. And then, severe error report
while booting fsck error "unmounting clearnly..." The fsck almost
couldnot fix the partitions' illegal IO blocks. So, I used to spend
horrible time only run fsck manually.

And the worse stuff was the system stopped! whenever I did basic file
handling:
   tar zxvpf linux-2.2.16.tar.gz # data crc error

   cp redhat-6.2-i386.iso /usr/software # in this case 'timeout waiting
for DMA
System stopped complaining 'DMA stuff'

My last trial was to reinstall Linux system formatting the Hard Disk.:(

I just finished new kernel installation (2.2.16). It worked fine.

Is there special BIOS setup for Dual CPU system? I cannot find MTRR
related stuff in the MB manual I have.

My first SMP machine is going through a lot of trouble. :(
I wanna here SMP related info including kernel configuration and BIOS
setup beyond the SMP-HOWTO document. <- I read it several times and
followed the guide line.

Thanks,

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Before you buy.

 
 
 
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MTRR error in Dual CPU system.

Post by smp roo » Sat, 22 Jul 2000 04:00:00


take a look over at the messageboard on www.bp6.com

there may be something to help

good luck with smp...

-----------------------------------------------------------

Got questions?  Get answers over the phone at Keen.com.
Up to 100 minutes free!
http://www.keen.com

 
 
 
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MTRR error in Dual CPU system.

Post by Hans » Sat, 22 Jul 2000 04:00:00


Hello,

Thanks your advice.

Well, the system becomes more stable than before afterward 2.2.16 Kernel
installation.



Quote:> take a look over at the messageboard on www.bp6.com

> there may be something to help

> good luck with smp...

> -----------------------------------------------------------

> Got questions?  Get answers over the phone at Keen.com.
> Up to 100 minutes free!
> http://www.keen.com

--
--------------------------------------------
Software Engineer
My homepage URL is 'http://www.geocities.com/flyingdoggle/main.html'

Sent via Deja.com http://www.deja.com/
Before you buy.

 
 
 
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MTRR error in Dual CPU system.

Post by Ricardo Ferreir » Mon, 21 Aug 2000 04:00:00



> Hello,

> My Linux system is
> Motherboard: Abit BP6 Socket 370
> CPU: Intel Celeron 466Mhz x2
> RAM: 64M SDRAM x1
> HDD: Western Digital Caviar 10.2GB x2
> CD-ROM: ATAP 40X

> dmesg shows the below messages.

> mtrr: your CPUs had inconsistent fixed MTRR settings
> mtrr: probably your BIOS does not setup all CPUs

This is perfectly normal. My Dual P3-550 oc 616 system with a
DFI-P2XBL/D board says the same and it works as a charm.

Quote:

> What's mean?

It means the mtrrs are not the same in the two CPUs. MTRRs are registers
in the P3/Celeron that permit you to change how data is written to RAM.
It can be used to speed up video.

Quote:

> I got really trouble this system. Especially, when I shutdown it,
> the system stop before shutting down eth0 (NE2000 PCI Network card.) and
> I just managed to shutdown it externally. And then, severe error report
> while booting fsck error "unmounting clearnly..." The fsck almost
> couldnot fix the partitions' illegal IO blocks. So, I used to spend
> horrible time only run fsck manually.

Thats because the system didnt unmount the filesystems when you shut it
down with the power button.

Quote:

> And the worse stuff was the system stopped! whenever I did basic file
> handling:
>    tar zxvpf linux-2.2.16.tar.gz # data crc error

>    cp redhat-6.2-i386.iso /usr/software # in this case 'timeout waiting
> for DMA
> System stopped complaining 'DMA stuff'

Hmm, the last time this happened to me, it meant one of my HDDs was
about to die so i bought a new Fujitsu 20GB and now its working great.

Quote:

> My last trial was to reinstall Linux system formatting the Hard Disk.:(

> I just finished new kernel installation (2.2.16). It worked fine.

> Is there special BIOS setup for Dual CPU system? I cannot find MTRR
> related stuff in the MB manual I have.

> My first SMP machine is going through a lot of trouble. :(
> I wanna here SMP related info including kernel configuration and BIOS
> setup beyond the SMP-HOWTO document. <- I read it several times and
> followed the guide line.

If your overclocking your CPU, that could be the problem, as some
components dont react very well to overclocking.

Good luck
--
"One World, One Web, One Program" - Microsoft Ad
"Ein Volk, Ein Reich, Ein Fuhrer" - Adolf Hitler

 
 
 
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1. High system CPU% in dual CPU System

I'm experiencing very high system CPU% indications on my new dual
Pentium III machine (SuSE Linux 7.1, Kernel 2.4.4-SMP):

  12:26am  up 1 day,  8:34,  9 users,  load average: 1.44, 2.74, 3.26
116 processes: 113 sleeping, 3 running, 0 zombie, 0 stopped
CPU0 states: 19.2% user, 32.0% system,  0.0% nice, 48.2% idle
CPU1 states: 20.4% user, 40.1% system,  0.0% nice, 38.3% idle
Mem:   512180K av,  498144K used,   14036K free,       0K shrd,  145360K buff
Swap: 1024120K av,    8504K used, 1015616K free                   39976K cache

   PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
20308 root       9   0 21056  20M  1744 S     2.7  4.1   6:14 X
30471 capicall  12   0  1020 1020   772 R     0.7  0.1   0:36 top
   594 root       9   0   628  628   480 S     0.5  0.1   6:59 nscd
22072 ingo      17   0  1484 1484   576 R     0.5  0.2   0:00 ps
   596 root       9   0   628  628   480 S     0.3  0.1   6:36 nscd
22467 ingo       9   0  3940 3940  2812 R     0.3  0.7  11:03 gkrellm
22978 ingo       9   0  1380 1380  1132 S     0.3  0.2   0:04 ssh
   597 root       9   0   628  628   480 S     0.1  0.1   6:31 nscd
   598 root       9   0   628  628   480 S     0.1  0.1   6:35 nscd
22071 ingo      17   0  1036 1036   852 S     0.1  0.2   0:00 sh
...

After the initial Installation everything was fine - it must be
caused by some additonal package, but I have no clue.

What can I do to find out what the CPUs are doing during "system" time?

--

Ingo

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