[arch-general] mce after linux-3.11.5-1 on NP900X3C

LoneVVolf lonewolf at xs4all.nl
Sat Nov 15 14:20:49 UTC 2014

On 15-11-14 06:57, Rasmus Liland wrote:
> On 2014-11-15 06:10, Mark Lee wrote:
>> On 11/14/2014 10:29 PM, Rasmus Liland wrote:
>>> On 2014-11-15 04:01, Mark Lee wrote:
>>>> Are you booting with the new intel u-code?
>>> You mean installing the intel-ucode package and enabling it in the
>>> bootloader as per instructions at
>>> https://wiki.archlinux.org/index.php/microcode ?
>>> No, I haven't gotten around to it yet as I'm, since August 2012, a
>>> user of the grub-legacy (0.97) package on this laptop. I know
>>> grub-legacy doesn't support the loading of the microcode. I'll
>>> switch to using Syslinux instead when I find a proper memstick.
>>> Are you fairly sure this is a Intel microcode issue?
>> To Rasmus,
>> I'm not completely certain; but it would make sense. I'd test it out.
>> Regards,
>> Mark
> Thank you for your help thus far. I'll examine this further tomorrow,
> g'night.

 From rasmus first post :
I'm experiencing machine check exceptions since every kernel after package
linux-3.11.5-1 (Oct 14 2013)

New intel microcode was only introduced with kernel 3.17 .....
It's unlikely to have to do with this issue.

check the log you posted again (bold added by me).

[19367.116196] mce: [Hardware Error]: CPU 1: Machine Check Exception: 5 Bank 4: b200000000100402
[19367.116202] mce: [Hardware Error]: RIP !INEXACT! 33:<00007f8b4934c8b7>
[19367.116205] mce: [Hardware Error]: TSC 2824672b8e7
[19367.116211] mce: [Hardware Error]: PROCESSOR 0:306a9 TIME 14010118857 SOCKET 0 APIC 1 microcode 12
[19367.116213] mce: [Hardware Error]:*Run the above through 'mcelog --ascii'*

install mcelog , run it as the log tells you and post the result.


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