Solved Install/boot hangs on uart0

A

Aurel_B

Hi,

I'm trying to install FreeBSD 13.2/14.0-RC2 on an MSI Cubi 5 12M (https://www.msi.com/Business-Productivity-PC/Cubi-5-12M) with an Intel® Core™ i3-1215U and 64GB RAM / 2 TB NVMe SSD. It hangs during boot, the last lines printed are:

Code: 
uart0: <16550 or compatible> at port 0x3f8 irg 4 flags 0x10 on isa0
uart0: non-PNP ISA device will be removed from GENERIC in FreeBSD 14undefined

If I boot in verbose mode I'll get one additonal line:

Code: 
pcib0: allocated type 4 (0x2f8-0x2f8) for rid 0 of uart1

Full screenshot is attached as well as a lspci -v output from Linux Mint.

BIOS is already updated, there is not much to configure in the BIOS itself. Linux Mint boots without a hitch.

Google didn't help either, do you guys have any suggestions?

Cheers, Aurel
 

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Just checked: same thing with 15-CURRENT :-(

I also disabled uart and atrtc -> still stuck. I disabled ACPI but this resulted in a kernel panic right after boot. I switched vt mode to

Code: 
hw.vga.textmode=1
hw.vga.acpi_ignore_no_vga=1

but still no change. The kernel just hangs (it still responds to pressing the power button with a "Acpi0sExecute: task queue not started"). Where do I go from here?
 
Thank you so much, that did the trick! I had to disable both uart0 & 1, in my first attempt I just disabled 0. So:

Code: 
set hint.uart.0.disabled="1"
set hint.uart.1.disabled="1"

makes the sytem boot just fine. Very releaved, been using FreeBSD as my primary home server for almost 20 years and I definitely want to stay with it :)
 
I also just had the same issue and this was very helpful.

Can anyone explain why this is an issue in the first place? I'd love to understand it.
 
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