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Old 02-24-2006, 10:26 PM   #1
Registered: Sep 2004
Location: MD, USA (D.C. Suburbs)
Distribution: Slackware
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Question Pentium D - Dual-Core problem

I have a Pentium D 820 processor on an ASUS P5RD1-VM motherboard.
My kernel is compiled to support SMP and otherwise works without issue.

The problem I have is that the 2nd core does not seem to work.
This part of the dmesg output seems relevant:
CPU0: Intel(R) Pentium(R) D CPU 2.80GHz stepping 04
Booting processor 1/1 eip 2000
Not responding.
Inquiring remote APIC #1...
... APIC #1 ID: failed
... APIC #1 VERSION: failed
... APIC #1 SPIV: failed
CPU #1 not responding - cannot use it.
Total of 1 processors activated (5679.96 BogoMIPS).
..TIMER: vector=0x31 pin1=2 pin2=-1
Brought up 1 CPUs
Is this a sure sign of bad hardware or might there be some issue I have overlooked?
Old 03-27-2008, 09:08 PM   #2
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Registered: Feb 2007
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I have the same problem

I posted about it on the Fedora Forums

However, have not found a solution for it. If I do, I'll post here and there. Hope you'll do the same.
Old 03-27-2008, 09:09 PM   #3
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A link to my Fedora Forums post might be helpful ...

... so here it is:
Old 05-25-2008, 09:41 PM   #4
Registered: Mar 2004
Location: KY, USA
Distribution: Fedora Core 1
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I have the same problem with a Quad core Q9300, but I see the issue ONLY if I go into the GRUB boot menu and choose Linux (instead of letting it boot by default into Linux).

Yes, this is not much of a problem unless I need to boot into an older version of the kernel.

Adding noapic didn't help.

But adding options "noapic nolapic acpi=off" and removing the "quiet" option succeeds about 1 out of 5 times!

I will update if I find anything new. If others find something new, please post it here.



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