6-current's BTX loader auto reboot after make world.

[Ian Dowse]

In message <20040905211722.30F1.DSNOFE at msn.com>, Deng XueFeng writes:
>I tried. but even I use:
># env TZ=GMT cvs update -D'2004/06/28 14:00:00 (old than my lat build
>world)
>the loader continue autoreboot.
>any idea?

Interesting - that implies that the trigger is something outside
the loader code itself. I guess you could try doing a full buildworld
using sources from various dates to narrow it down, but that's a
fair bit of work...

Actually, a quicker way would be to get copies of /boot/loader
from the various snapshot directories at

	ftp://snapshots.jp.freebsd.org/pub/FreeBSD/snapshots/i386/livetree/

to see roughly when the problem appeared.

>PS: how to debug loader?

It's not particularily easy... You can of course add printf() and
delay() calls at various places to see how far it gets before
crashing.

Ian