Arch Linux

btomza

Member

Registered: 2017-06-05

Posts: 7

[SOLVED] Reinstall or not after to change CPU?

Hello,

I'm new with Arch Linux.
I'm installed it in my old PC a Pentium IV with 6GB of ram; recently I've updated my BIOS and I've changed the processor from Pentium IV to Pentium D 945, after that I've started to see the following errors when the system start:

[    0.279190] ACPI Error: Method parse/execution failed [\_PR.CPU1._PDC] (Node ffff880199099730), AE_INVALID_TABLE_LENGTH (20160930/psparse-543)                                                                                                                     
[    0.279311] ACPI Error: Method parse/execution failed [\_PR.CPU2._PDC] (Node ffff8801990990a0), AE_INVALID_TABLE_LENGTH (20160930/psparse-543)  
...
[   10.503204] MPU-401 device not found or device busy

And also I see

...
[  877.420768] CPU0: Core temperature above threshold, cpu clock throttled (total events = 4424)
[  877.420858] mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 128: 000000000000000b
[  877.420867] mce: [Hardware Error]: TSC 2da61387558 
[  877.420877] mce: [Hardware Error]: PROCESSOR 0:f64 TIME 1496624096 SOCKET 0 APIC 0 microcode 4
[  877.421749] CPU0: Core temperature/speed normal
[  877.421761] mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 128: 000000000000000a
[  877.421764] mce: [Hardware Error]: TSC 2da616aaa8a 
[  877.421769] mce: [Hardware Error]: PROCESSOR 0:f64 TIME 1496624096 SOCKET 0 APIC 0 microcode 4
...

So, any suggestions/ideas?, should I reinstall all the OS? or could I make any OS update?

Thanks,

Last edited by btomza (2017-06-10 00:21:02)

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,317

Re: [SOLVED] Reinstall or not after to change CPU?

Reinstalling is not the answer,  You will end up at the same place.

This looks like an ACPI table issue.  Unfortunately, you are throwing Machine Check Exceptions.  Probably "BIOS" related (though if this UEFI, it isn't really a BIOS).  OTOH, what are you doing for a heat sink on this new processor.  How did you bond it to the CPU, what about airflow over the heat sink?

---

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Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
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How to Ask Questions the Smart Way

paulkerry

Member

From: Sheffield, UK

Registered: 2014-10-02

Posts: 611

Re: [SOLVED] Reinstall or not after to change CPU?

You've posted a truncated log, so we cannot tell if you have installed microcode or not - https://wiki.archlinux.org/index.php/Microcode

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,317

Re: [SOLVED] Reinstall or not after to change CPU?

You've posted a truncated log, so we cannot tell if you have installed microcode or not - https://wiki.archlinux.org/index.php/Microcode

Oh, good catch.

---

Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

btomza

Member

Registered: 2017-06-05

Posts: 7

Re: [SOLVED] Reinstall or not after to change CPU?

Hi ewaller and paulkerry,

Thanks by your answers. I'm going to share with you the full log or at least more information.
The problem related to the temperature is fixed, I had to change my heat sink; any way I continue seeing the other error messages, I'll share with you the full log.

btomza

Member

Registered: 2017-06-05

Posts: 7

Re: [SOLVED] Reinstall or not after to change CPU?

You've posted a truncated log, so we cannot tell if you have installed microcode or not - https://wiki.archlinux.org/index.php/Microcode

...I'm reading the link.... and at least that it has installed automatically, I haven't installed it...
I'm going to check if I have that package installed if not, I plan to follow the instruction mentioned in the link (I'm using GRUB)... and I'll back here with new comments...

btomza

Member

Registered: 2017-06-05

Posts: 7

Re: [SOLVED] Reinstall or not after to change CPU?

Hi ewaller / paulkerry

I've installed the microcode following the steps described into https://wiki.archlinux.org/index.php/Microcode

Now I see:

$ dmesg | grep microcode
[    0.629556] microcode: sig=0xf64, pf=0x4, revision=0x4
[    0.629648] microcode: Microcode Update Driver: v2.2.
$ grep microcode /proc/cpuinfo
microcode       : 0x4
microcode       : 0x4
$

but...I continue seeing the same error messages that I said before...

If you want you can see all the messages here: https://file.town/uploaded/uq0hip69kmnbvhe2tk2veusp3

Let me share with you some extra information; I have this motherboard: https://www.asus.com/Motherboards/P5WD2_Premium/ and I've updated the bios to the last stable version (0709): https://www.asus.com/Motherboards/P5WD2 … _Download/

Thanks for your help!!

2ManyDogs

Forum Fellow

Registered: 2012-01-15

Posts: 4,646

Re: [SOLVED] Reinstall or not after to change CPU?

Don't make us download your log. Use a pastebin client.

Does the machine function normally once it's booted?

Last edited by 2ManyDogs (2017-06-08 01:44:10)

trytipARCH

Banned

Registered: 2017-06-05

Posts: 38

Re: [SOLVED] Reinstall or not after to change CPU?

...

Last edited by trytipARCH (2017-06-11 03:55:11)

paulkerry

Member

From: Sheffield, UK

Registered: 2014-10-02

Posts: 611

Re: [SOLVED] Reinstall or not after to change CPU?

but...I continue seeing the same error messages that I said before...

I'd be more worried if you keep getting the "mce: [Hardware Error]" messages: as these don't appear in your posted dmesg output, then you've probably sorted that with the new heat sink.

Following on from @trytipARCH and @2ManyDogs, there is no usual problem when you get those other messages...

Cheers Paul.

mich41

Member

Registered: 2012-06-22

Posts: 796

Re: [SOLVED] Reinstall or not after to change CPU?

Ignore MPU-401 if you don't know what MIDI is. You likely don't even have such hardware and hence this message.

As for this ACPI thing, it seems there is some error in ACPI tables from the BIOS. For starters, see if there is an "ACPI version" option in BIOS and try switching it, maybe other versions will have correct tables. Anyway, this seems to be a desktop machine so I think the only thing affected by this error could be CPU power saving. Install cpupower, run

cpupower monitor -l

and see if it reports availability of any states other than POLL. If it does then it's OK.

btomza

Member

Registered: 2017-06-05

Posts: 7

Re: [SOLVED] Reinstall or not after to change CPU?

Hi all,

Thanks a lot by the answers!!!

Let me answer your questions and comments...

Does the machine function normally once it's booted?

Yes, it does.

...see if there is an "ACPI version" option in BIOS and try switching it...

Yes, it has another option, but nothing happened after to switch it (same result).

..this seems to be a desktop machine so I think the only thing affected by this error could be CPU power saving. Install cpupower, run...

Yes, it's a desktop machine. I installed cpupower but it said something like that "..there is nothing to monitor...", so I removed it.

So.. based in the paulkerry comment, I think that there isn't problem with that... then I could said that it is solved.