Re: [PATCH] x86/AMD: Apply erratum 688 on machines without a BIOS fix

[Borislav Petkov]

Hi Ioannis,

first of all, when you reply to a mail on lkml, please use the "reply-to-all"
functionality of your mail client - otherwise replies might get missed on such a
high volume mailing list.

On Fri, Oct 21, 2016 at 07:19:07PM +0300, sonofagun@xxxxxxxxxxxxxxx wrote:
> Sorry for the late reply! This machine has caused nothing but trouble. HP
> will not fix it and we will not choose their laptops anymore...

You're not the only one making this experience.

> My brother told me that we apply a quirk to the last Ontario APUs that do
> not need it but I did not think it would be an issue since they have fixed
> the error.

No, you need to apply the fix only on the models which need it.

> It seems better this way so that only affected APUs are patched. Be patient,
> we are compiling the new patch right now but compiling is run on a different
> high end AMD machine of my brother. Tomorrow I will have access to the
> laptop and I will update the kernel and send you the V2 patch. Compiling to
> that laptop would possibly need a whole day even with AC power!

You can build somewhere else and copy the kernel to the laptop. That's
how I do it.

> Do you want /proc/cpuinfo on the V2 patch e-mail? Both CPUs needed?

No, I just wanted to see them and you've pasted them here. Thanks.

> Here is a dump from an older installation some months ago I kept on my
> disk(tomorrow I will dump it again if you want):

No need, one is enough :)

> > Then, keep that *whole* changelog above when sending v2 of the patch
> What do you mean? It is not clear to me, Do you mean all the info we wrote
> on the e-mail, your comments or both?

All the info you wrote in the first mail.

> We have many AMD machines and we will need your help next week to patch our
> Phenom(tm) II X6.

Why, what's wrong with that one? That one should be all fixed! :-)

I have such box too and it runs fine.

> Let's finish this patch first and we will fix that too but it appears
> to be much more difficult...

Don't hesitate to ask if you need help...

HTH.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.