Re: git: 076002f24d35 - main - Do comprehensive UFS/FFS superblock integrity checks when reading a superblock.

From: David Wolfskill <david_at_catwhisker.org>
Date: Mon, 30 May 2022 22:41:43 UTC
On Mon, May 30, 2022 at 04:33:47PM -0600, Warner Losh wrote:
> On Mon, May 30, 2022 at 4:24 PM Cy Schubert <Cy.Schubert@cschubert.com>
> wrote:
> 
> > Upgrading boot blocks didn't help either.
> >
> > It only happened on one of four machines. Likely because the other three
> > are AMD on Asus MBs while the problem machine is an Acer laptop running
> > Intel.

In my case, the laptops are OK, but my build machine is affected.

Info on it is anchored from
https://www.catwhisker.org/~david/FreeBSD/history/ (ref. machine
"freebeast").

> David Wolfskill reported the same: some are affected, others not.
> It's unclear why, exactly, but all the other details you gave track
> with the troubleshooting tsoome and I have been doing with him.

I suppose it's a bit of a relief to know I'm not alone in this. :-}

> The issue is inside of loader.efi or /boot/loader, not in the earlier
> boot blocks.
> ....

I've ended up putting a gzipped dd image of the full file system from
/dev/ada0s4a up at https://www.catwhisker.org/~david/FreeBSD/head/loader/

Peace,
david
-- 
David H. Wolfskill                              david@catwhisker.org
"Putin is a paranoid dictator.  Putin must go. He started a senseless war
and is leading Russia into a ditch." - Egor Polyakov & Alexandra Miroshnikova

See https://www.catwhisker.org/~david/publickey.gpg for my public key.