Running current in Parallels 16.3.2

[tuexen at freebsd.org]

> On 18. Feb 2021, at 00:28, Vincent Milum Jr <freebsd-arm at darkain.com> wrote:
> 
> We had similar issues getting FreeBSD SMP working under ESXi ARM Fling. In
> that instance, there were bugs in both the hypervisor as well as in FreeBSD.
> 
> With the FreeBSD kernel fixes, I tested those on Parallels last night, but
> still no go with SMP. There is possibly more work to do in the kernel, but
> may also be some bugs in the hypervisor as well.
> 
> For ESXi ARM Fling, the issues all revolved around the GIC (Generic
> Interrupt Controller) and the way inter-CPUs communication happened. If
> memory serves me correctly, one CPU core was waiting on another CPU core to
> finish initialization and report back in a "ready" state so to speak. Where
> Parallels with FreeBSD is hanging, and how it is hanging, looks virtually
> identical from my very limited testing last night.
If you boot into single user mode, the system comes up and uses multiple CPUs.
Then using ^D to start multi user mode shows that mount seems to hang. You can
use ^T, but it never finishes. Is that what you observed on ESXi?

Best regards
Michael
> 
> On Wed, Feb 17, 2021 at 3:05 PM Michael Tuexen <tuexen at freebsd.org> wrote:
> 
>> Dear all,
>> 
>> I tried running current on an ARM-based Mac using the technical preview of
>> Parallels.
>> With using only a single CPU, everything seems to run fine. One can git
>> clone the
>> source tree, do a buildworld / buildkernel and install it and run it.
>> Pretty stable,
>> not problems.
>> 
>> When using more than one CPU, the kernel doesn't completely boot. It gets
>> stuck after
>> reporting that the file system is clean. The system also does not respond
>> to keyboard
>> input anymore.
>> 
>> Any idea what is going wrong or how to figure out if this is a problem
>> related to
>> FreeBSD or to Parallels?
>> 
>> Best regards
>> Michael
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