On Mon, Oct 08, 2007 at 08:24:07PM +0200, Petr Holub wrote: > Hi, > > 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 > dump. > > 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 _at_ 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 case. 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 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.
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