Am 01.09.2018 um 21:01 schrieb Konstantin Belousov:
On Sat, Sep 01, 2018 at 08:16:15PM +0200, Harry Schmalzbauer wrote:
I'm testing ALPHA4 on a Ivy bridge machine, without recent firmware
update, so no PCID.
I have no idea what is the connection between firware updates and PCID.
Ivy CPUs do have the PCID feature.
Sorry, I confused it with INVPCID which is nonsense too.
IBPB was firmware related, but this is completely different to this EFIRT...
Ignore please.
This fix doesn't cover that hardware.
Setting efi.rt.disabled=1 in loader.conf makes it bootable.
Without this tweak, the following panic happens:
Fatal trap 12: Page fault while in kernel mode
:
cpuid = 5; apic id = 05
:
fault code: supervisor read data, page not present.
:
Try https://reviews.freebsd.org/D16972
Panic vanished, boots fine with D16972-47525, nothing more checked.
Thanks a lot,
-harry
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