r337738 -> r337834: Forth loader OK; Lua loader says "BTX halted"

[Warner Losh]

On Wed, Aug 15, 2018 at 7:00 AM, Kyle Evans <kevans at freebsd.org> wrote:

> On Wed, Aug 15, 2018 at 7:53 AM, Kyle Evans <kevans at freebsd.org> wrote:
> > On Wed, Aug 15, 2018 at 7:40 AM, David Wolfskill <david at catwhisker.org>
> wrote:
> >> I'm tracking head/amd64 daily twice on each of two machines: my "build
> >> machine" ("freebeast") and my laptop, each first using the traditional
> >> Forth loader, then (on a different slice), the Lua loader.
> >>
> >> Each is using BIOS and MBR (not UEFI; not GPT).
> >>
> >> Yesterday's update was to r337738, and was uneventful for each of
> >> the four environments.
> >>
> >> Today's was to r337834, and was uneventful for the build machine (both
> >> Forth and Lua loaders -- though there remains no means of interacting
> >> with the loader on the build machine if it's booted using the Lua
> >> loader).
> >>
> >> The laptop had no issues using the Forth loader, but the boot process
> >> was ... severely abbreviated ... using the Lua loader.
> >>
> >> I don't have a serial consoloe on the laptop, so I snapped a photo; it
> >> may be found at
> >> <http://www.catwhisker.org/~david/FreeBSD/head/r337834/BYX_halted.jpg>.
> >>
> >> As the name suggests, the final message was:
> >>
> >> BTX halted
> >>
> >> at which point, I found no way to get the laptop to respond to anything
> >> but a power cycle.
> >
> > Interesting. It seems to have died in the middle of loading a
> > module... any insight into what that module may have been?
> >
> > Any way to hack beastie_disable="YES" into loader.conf(5) and see if
> > that changes things?
> >
>
> To be clear- the test I'm interested in will not be productive unless
> beastie_disable="YES" is present in loader.conf or the environment
> before lualoader engages at all.


You may need to build a smaller loader_lua. If so please see
https://reviews.freebsd.org/D16724 and apply and rebuild. The good news is
that you only need to rebuild src/stand, which is fast.

Warner