non-bootable (UEFI, geli, ZFS) kernel on haswell [Was: Re: CURRENT from today throws lots of ACPI errors, lost HDMI detection]

[Harry Schmalzbauer]

Am 15.08.2018 um 06:01 schrieb Kyle Evans:
> On Tue, Aug 14, 2018 at 10:56 PM, Pete Wright <pete at nomadlogic.org> wrote:
>> On 8/14/18 8:45 PM, Kyle Evans wrote:
>>> On Tue, Aug 14, 2018 at 10:41 PM, Pete Wright <pete at nomadlogic.org> wrote:
>>>> On 8/14/18 6:13 PM, Kyle Evans wrote:
>>>>> On Tue, Aug 14, 2018 at 7:28 PM, Pete Wright <pete at nomadlogic.org>
>>>>> wrote:
>>>>>> i also attempted to boot using UEFI but the system hangs very early in
>>>>>> the
>>>>>> boot process.  i have reverted to legacy mode for now so that i can
>>>>>> work,
>>>>>> but am keen to test out any patches or do any other debugging that is
>>>>>> needed.
>>>>> Hi Pete,
>>>>>
>>>>> Where in the process does it hang with UEFI? I can't help much with
>>>>> any of your other problems, but I am curious about this one. =)
>>>> sure thing - the last several lines are:
>>>>
>>>> random: fast provider: "Intel Secure Key RNG"
>>>> kbd1 at kbdmux0
>>>> netmap: loaded module
>>>> nexus0
>>>>
>>>> at this point it hangs.  let me know if you want me to try booting with
>>>> verbose output to dmesg or something.
>>>>
>>> Are you running GENERIC, or custom config? Any modules loaded?
>>
>>
>> this is a GENERIC kernel using ZFS as well as GELI full disk encryption.
>>
> Good to know, thanks!

Hello,

me too here, kind of...
Machine resets after nexus0 – took my SLR with 1s exposure time to make 
sure there's no more GOP output available :-(
Haven't tried efi.rt.disabled=1 yet, since I had to spend some time to 
get the old kernel in place.
non-booting kernel inquestion is custom r337804.
Like Pete, I'm booting from a ZFS pool utilizing GOP, load_geli, zfs, 
aesni, nut my machine dosen't hang after "nexus0" but hard resets.
The modules loaded don't influence the problem, even with only "kernel" 
(which is MINIMAL_config + very view devices/filesystems added) loaded, 
the machine resets after "nexus0".

Will try efi.rt.disabled=1 tomorrow.
Anyone intending to update a haswell/UEFI machine (Intel DH87MC in my 
case, with INVPCID microcode updated BIOS) could run into simialr 
situation I guess, so please make sure to be prepared...

My first suspicion were side effects of r337715.  But this is just a 
wild guess, haven't bisected anything yet.

Thanks,

-harry