Boot warnings about EDAC, ECC and KVM

English Install/Boot/Login
#1

I am trying to make sense of some messages that comes right after Grub and before Linux kernel is loading.


   2.406975] EDAC sbridge: ECC is disabled. Aborting
   2.407528] EDAC sbridge: Couldn't find mci handler
   2.418429] kvm: disabled by biod
   2.476317] kvm: disabled by biod

If I could get rid of this perhaps I could shave off 5 seconds of boot time.

My hardware setup:
MB: ASRock Fatal1ty X99X Killer/3.1
CPU: Intel Core i7-6850K
RAM: G.Skill TridentZ DDR4 32GB 3600MHz
SSD: Samsung 950 Pro 512GB M.2

My RAM is not ECC.
Considering that I have the brand new Broadwell-E CPU from Intel, would a newer kernel work better with it?
Perhaps I need to reconfigure the kernel to disable ECC or something.

#2

On Wed 12 Oct 2016 03:06:02 PM CDT, DJViking wrote:

I am trying to make sense of some messages that comes right after Grub
and before Linux kernel is loading.

Code:

2.406975] EDAC sbridge: ECC is disabled. Aborting
2.407528] EDAC sbridge: Couldn’t find mci handler
2.418429] kvm: disabled by biod
2.476317] kvm: disabled by biod

If I could get rid of this perhaps I could shave off 5 seconds of boot
time.

My hardware setup:
MB: ASRock Fatal1ty X99X Killer/3.1
CPU: Intel Core i7-6850K
RAM: G.Skill TridentZ DDR4 32GB 3600MHz
SSD: Samsung 950 Pro 512GB M.2

My RAM is not ECC.
Considering that I have the brand new Broadwell-E CPU from Intel, would
a newer kernel work better with it?
Perhaps I need to reconfigure the kernel to disable ECC or something.

Hi
Ignore the warnings if not applicable? Enable VT in the BIOS if you
want to use kvm_intel.

If neither are required you could blacklist? Use lsmod and grep for the
edac ones.

–
Cheers Malcolm °¿° LFCS, SUSE Knowledge Partner (Linux Counter #276890)
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#3

I’d guess that your ECC error can be addressed by a BIOS setting that disables the ECC check.

And,
This guy solved your problem by updating the BIOS
https://www.centos.org/forums/viewtopic.php?f=16&t=8218&sid=cfd01e887ebd0e6e1981847eb58c9f5e&start=10

Which should be one of the first things done all the time on newly acquired hardware…

TSU

#4

The BIOS is updated. Since I have the new Broadwell-E CPU I needed a new BIOS chip directly from ASRock to start it up.
Will check in the BIOS to see if there is any checks I can disable or ECC.

#5

I assume you know what I meant by the BIOS is updated by checking whether there is a software update that should be flashed to your EPROM. Just because you installed a replacement chip does not necessarily mean that it’s properly updated.

TSU