On Mon, Oct 08, 2007 at 08:24:07PM +0200, Petr Holub wrote:
> I was about to install September -CURRENT snapshot on a machine
> with 10GE card. When attempting to install from USB CDROM (it's
> a 1U machine without, I get something like a kernel panic
> with a stacktrace running indefinitely and very fast. I must be
> in a very early stage as I was unable to break it anyhow. When
> I tried to break in using serial console (setup using BIOS), the
> last message I get in the console is
> CD Loader 1.2
> and then nothing, but the screen keeps running with sth like register
> This behavior also occurs with both i386 and amd64 Sept07 snapshot,
> i386 March07 snapshot and i386 FreeSBIE 1.1 which I attempted to run
> as well. However, Feisty Fawn runs and installs just fine.
> Basically, it's a dual processor dual core (4 cores in total)
> Intel Xeon 5160 @ 3GHz with 4GB RAM.
> Is there any way to stop this and debug it?
There is a known problem with some BIOSes trying to enter protected mode
when serving requests, esp. USB stacks. The usual simptom of the problem
is BTX panic on the console. I cannot say for sure whether this is your
The patch exists that modifies BTX to reflect interrupts and requests into
the real mode, see
You would need to either somehow inplant supplied loader into your CD
image, or rebuild the whole installation CD with patch applied. Again,
I cannot guarantee that the patch is relevant for your problem.