I can confirm this bug. To me it seems related to IOMMU implementation in the kernel. I experienced it on my company's server when disk usage is high no matter in dom0 or domU. This is very disturbing - Xen is not stable at all and I am forced to cope with one server shared over all services instead of VPS solution.
I can confirm this bug. To me it seems related to IOMMU implementation in the kernel. I experienced it on my company's server when disk usage is high no matter in dom0 or domU. This is very disturbing - Xen is not stable at all and I am forced to cope with one server shared over all services instead of VPS solution.