Loader panic 10.1-STABLE #0 r275828 (also r275903)

[Janos Dohanics]

On Thu, 18 Dec 2014 10:09:37 -0500
Janos Dohanics <web at 3dresearch.com> wrote:

> On Thu, 18 Dec 2014 02:27:28 -0500
> Janos Dohanics <web at 3dresearch.com> wrote:
> 
> > Greetings,
> > 
> > I have recompiled kernel + world according to Handbook instructions.
> > When rebooting after installworld and running mergemaster(8), I was
> > greeted with:
> > 
> > panic: bd_strategy: xxxxxx bytes I/O not multiple of block size
> > 
> > Fortunately, I was able to boot using zroot:/boot/zfsloader.old.
> > 
> > Do I have a corrupted /boot/zfsloader file?
> 
> I took the /boot/zfsloader file from another box running 10.1-STABLE
> #0 r275391 built on Dec 2, 2014 to the box with 10.1-STABLE #0
> #r275828 -
> won't boot, same error message. However, /boot/zfsloader from
> 10.1-STABLE #0 r275828 does boot 10.1-STABLE #0 r275391.
> 
> So, I have this:
> 
> Box #1: 10.1-STABLE #0 r275828 amd64, built on Dec 16
> 
> /boot/zfsloader
> SHA256 (/boot/zfsloader) =
> 12ad6a59082fa4639f3f991319892259b1777b26b28c8aa09c2b53d0326d3b33
> - Does not boot Box #1
> - Does boot Box #2
> 
> /boot/zfsloader.old
> SHA256 (/boot/zfsloader.old) =
> b5530ce9f9128949b44384516974ba4ef741e587975e3e1d71933798150502e3
> 
> Box #2: 10.1-STABLE #0 r275391 amd64, built on Dec 2
> 
> /boot/zfsloader
> SHA256 (/boot/zfsloader) =
> 1e3d692dc53c5e0ddeb75b8a453a0a44cbf4c97bc8cfe02b0ad45928374f4718
> - Does not boot Box #1
> - Does boot Box #2
> 
> Would you please advise?

OK, svn-ned /usr/src and rebuilt world/kernel on Box #1 to 10.1-STABLE
#0 r275903 - still getting the panic: bd_strategy... error message. I
can only boot this machine using the old /boot/zfsloader file which is
dated Jul 12 2014 and now it's saved as /boot/zfsloader.good.

Would you please give your insight on how to fix this problem? I guess
simply copying /boot/zfsloader.good to /boot/zfsloader isn't a fix,
just bandaiding the real problem.

-- 
Janos Dohanics