Re: Issues with FreeBSD 15-CURRENT on the ThunderX1

From: Shawn Webb <shawn.webb_at_hardenedbsd.org>
Date: Fri, 21 Feb 2025 23:00:44 UTC 
On Tue, Feb 18, 2025 at 05:14:06PM +0000, Andrew Turner wrote:
> 
> > On 18 Feb 2025, at 16:43, Shawn Webb <shawn.webb@hardenedbsd.org> wrote:
> > 
> > Hey all,
> > 
> > It appears that probing PCI devices might be busted on FreeBSD
> > 15-CURRENT snapshot
> > FreeBSD-15.0-CURRENT-arm64-aarch64-20250213-6156da866e7d-275409-memstick.
> > 
> > I have two ThunderX1 servers, both with PCI-connected Intel NICs. They
> > used to work on FreeBSD/HardenedBSD. I noticed in the boot-up dmesg
> > output that the kernel couldn't successfully probe the PCI devices.
> > I've attached /var/run/dmesg.boot and the output of `pciconf -lv`.
> > 
> > I don't know what exactly is broken, but I suspect the PCI probing
> > errors are at least symptomatic of the underlying problem.
> > 
> > I also tried HardenedBSD 15-CURRENT, and experienced the same issue.
> 
> It looks like the driver is missing ACPI support [1]. You can force FDT by setting “kern.cfg.order=fdt” in loader.
> 
> Andrew
> 
> [1] https://cgit.freebsd.org/src/tree/sys/dev/vnic/thunder_bgx.c?id=c76c2a19ae3763d17aa6a60a5831ed24cbc16e83#n1122

Hey Andrew,

Thanks for the response! I've tested out forcing FDT and that seems
to make the ThunderX1 happier.

Thanks again,

-- 
Shawn Webb
Cofounder / Security Engineer
HardenedBSD

Tor-ified Signal: +1 303-901-1600 / shawn_webb_opsec.50
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