On 28-03-2015 09:34 PM, Frank Steinmetzger wrote:
On Sat, Mar 28, 2015 at 07:48:48PM -0300, Sebas Pedersen wrote:
>>> bios update/microcode update. A google search suggests that you have
>>> run into an errata.
>>
>> Oh OK, thank you. Must have miss that in the search. So you are saying
>> that the error comes from a bios errata (and don't know what microdode
>> is), and the fix is to update bios?
An “errate” is what Intel calls an error or defect in its hardware, as
far
as I know. Microcode is sort of a “firmware” running in a CPU. For
example,
the TSX feature in Haswells (which was one of the reasons why I chose
my
particular CPU in the first place, grrr) was found to have a bug, so
Intel
produced a microcode update that would simply disable the relevant set
of
instructions.
> no, possibly from a CPU errata and a bios update might bring in the
> microcode update that works around that.
I see, thanks for clarifying that. So looks like not too many options,
either try to update the bios and/or replace the CPU.
Not necessarily. The first search hit (“linux update microcode”)
brought me
to ¹, another to ². The latter led me to finding
sys-apps/microcode-ctl,
which might do what you need.
¹ https://wiki.archlinux.org/index.php/Microcode
² http://www.linux-mag.com/id/723/
Thank you very much for the explanations. Very clear indeed. I'm gonna
work around with this microcode stuff and see if that helps.
I appreciated you reply!
