I have the problem even without starting a guest (DomU), i.e. only the Xen hypervisor and the kernel in Dom0 are running.
With swiotlb=off I get a new kernel bug, but it suggests to use swiotlb=force. I also tried this option and it makes the system considerably more stable. I could install and deinstall apache2, but when installing texlive-full (because it is huge) the kernel crashed again.
I have the problem even without starting a guest (DomU), i.e. only the Xen hypervisor and the kernel in Dom0 are running.
With swiotlb=off I get a new kernel bug, but it suggests to use swiotlb=force. I also tried this option and it makes the system considerably more stable. I could install and deinstall apache2, but when installing texlive-full (because it is huge) the kernel crashed again.
Seems to me, we are on the right way...