panic on boot

[Kostik Belousov]

On Tue, Oct 09, 2007 at 01:47:03AM +0200, Petr Holub wrote:
> > The patch exists that modifies BTX to reflect interrupts and requests into
> > the real mode, see
> > http://people.freebsd.org/~kib/realbtx/
> > http://people.freebsd.org/~kib/realbtx/realbtx.2.patch
> 
> After booting the machine with this patch, it works like a charm,
> looks fairly stable, Myrinet 10GE card up and running. So I
> wonder: would it be possible to include this realbtx into 7.0-RELEASE?
> It seems rather important, as many machines are now being
> installed off USB CD drives and USB keys...

No, it is definitely not for 7.0. There were some reports that keyboard
works quite jerky under the /boot/loader, and some keystrokes were missing.
Another, possible related, report was the need to press some key to actually
boot, since loader timer did not work.

I had no time to look at these problems. Also, it seems that code shall be
conditionalized, and either alternate boot2/loader provided, or compile
option present to select between vm86 btx/real btx. This was not thought
of too.
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