... unable to install 3.4/xen to dl380g4 ... clocksource(???)

Hi Forum,

it's admittedly an elderly piece of hardware I'm dealing with, but it works perfectly with alpine3.0 ... unfortunately this release reached EOL last month.
Last weekend I tried to update to 3.4, but I couldn't even get the installation to boot completely.
After switching to -and then complaining a bit about problems with- the clocksource tsc, the kernel opens an emergency console, and that's it ...

I tried to override the clocksource with whatever kernel-boot-parameter I could guess, but without result.
(stopping bootloader with ESC, followed by entering: "xen-grsec clocksource=")

My questions:
Could it be possible, that the xen-grsec kernel is translated without the ability to take (these) parameters into consideration?
If so, do I have to recompile the kernel and remaster an install-CD, are there other chances, or am I totally wrong ...?

@alpine-developer-/maintainer-team: Thank you for this great lean distro!!!

Joachim -Joe- Weber