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SubjectRe: Fix built-in early-load Intel microcode alignment
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> On Jan 15, 2020, at 10:46 AM, Jari Ruusu <jari.ruusu@gmail.com> wrote:
>
> On 1/15/20, Luis Chamberlain <mcgrof@kernel.org> wrote:
>>> On Mon, Jan 13, 2020 at 09:58:25PM +0200, Jari Ruusu wrote:
>>> Before that 16-byte alignment patch was applied, my only one
>>> microcode built-in BLOB was "accidentally" 16-byte aligned.
>>
>> How did it accidentially get 16-byte aligned?
>
> Old code aligned it to 8-bytes.
> There is 50/50-chance of it also being 16-byte aligned.
> So it ended up being both 8-byte and 16-byte aligned.
>
>> Also, how do you *know* something is broken right now?
>
> I haven't spotted brokenness in Linux microcode loader other
> than that small alignment issue.
>
> However, I can confirm that there are 2 microcode updates newer
> than what my laptop computer's latest BIOS includes. Both newer
> ones (20191115 and 20191112) are unstable on my laptop computer
> i5-7200U (fam 6 model 142 step 9 pf 0x80). Hard lockups with both
> of them. Back to BIOS microcode for now.
>

Hard lockup when loaded or hard lockup after loading?

> --
> Jari Ruusu 4096R/8132F189 12D6 4C3A DCDA 0AA4 27BD ACDF F073 3C80 8132 F189

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