Bug#900581: linux: Enable Buster kernel features for newer ARM64 servers.
On 06/04/2018 03:51 AM, Riku Voipio wrote:
> On Fri, Jun 01, 2018 at 10:07:57AM -0700, Geoff Levand wrote:
>> o Change CONFIG_ACPI_NFIT=y to CONFIG_ACPI_NFIT=m.
>> o Enable CONFIG_SCHED_SMT for hyperthreading processors.
>> o Enable CONFIG_ARM64_LSE_ATOMICS for v8.1 processors.
>> o Enable a number of ACPI options likely to be available on servers.
>> o CONFIG_ACPI_APEI selects PSTORE, so remove the arm64 specific setting.
>
> ACPI_APEI breaks HP m400, the xgene moonshot:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1574718
>
> The rest of options are generally fine. Wish more of these were modules tho.
> If we ok with telling M400 users to setting kernel command line of ghes.disable=1,
> we can enable APEI as well.
I think the hardware error logging/reporting features ACPI_APEI allows
is desired for servers. The M400 problem is a problem with its firmware.
I don't think we should hold everyone else back because of one platform
with a known problem and relatively straight forward fix. M400 users would
in general need to work around the problem with kernels from other
sources/distros. So, I think it OK to require M400 users to add a
command line fix.
>> -- System Information:
>> Debian Release: buster/sid
>> APT prefers testing
>> APT policy: (500, 'testing')
>> Architecture: arm64 (aarch64)
>>
>> Kernel: Linux 4.16.12 (SMP w/224 CPU cores)
>
> Cheeky. I take that means Debian kernel works well on you plaform.
Seems to be working good with the kernel config updates.
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