CURRENT kernel crashes on boot with BTX error

[John Baldwin]

On Thursday 23 October 2008 02:55:44 pm Ulrich Spoerlein wrote:
> On Thu, 23.10.2008 at 14:16:44 +0800, David Adam wrote:
> > I did try a loader from the CURRENT sources, which produced the same 
> > output.
> > 
> > However, the plot thickens. When I don't specify the kernel name with 
> > nextboot(8), but instead interrupt the loader and use 'unload; load 
> > /boot/kernel/gd-8; load /boot/kernel/gd-8/geom_mirror.ko' and so on for my 
> > other modules, the kernel boots quite happily - both using the 7.0 loader 
> > and the new one from the CURRENT sources.
> > 
> > Are there likely to be big differences in the boot process between using 
> > nextboot(8) and the unload/load method? I've used nextboot(8) to 
> > successfully load other kernels on this machine before.
> > 
> > In any case, now that I have a successful workaround I can try the patches 
> > I was after in the first place. If there's any more information I can 
> > provide, or you'd like access to this system (it has serial console and 
> > remote power control), let me know.
> 
> Wild guess: I think acpi is no longer built as module on recent -CURRENT
> but included in the kernel. Perhaps the unload dance you did above
> "fixed" the double loading of the module? Could you check if your
> nextboot kernel is containing/missing ACPI directly?

The loader doesn't always do a good job with detecting double loads of modules 
(the module defined in MODULE_VERSION has to match the filename for the 
loader to DTRT I think), but acpi.ko is one of the few cases when it does get 
it right.

-- 
John Baldwin