On Mon, 2018-06-04 at 08:29 -0700, Geoff Levand wrote: > 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.
I don't think it's OK to cause a regression like this. Since this is problem affects a specific known platform, the driver ought to recognise it and disable itself automatically. Ben. > > > -- 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. > -- Ben Hutchings Larkinson's Law: All laws are basically false.
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