On Mon, Nov 15, 2021 at 12:30:59PM +0000, Dr. David Alan Gilbert wrote: > Still; I wonder if it's best to kill the guest - maybe it's best for > the host to kill the guest and leave behind diagnostics of what > happened; for someone debugging the crash, it's going to be less useful > to know that page X was wrongly accessed (which is what the guest would > see), and more useful to know that it was the kernel's vhost-... driver > that accessed it. I is best to let the guest #VC on the page when this happens. If it happened because of a guest bug all necessary debugging data is in the guest and only the guest owner can obtain it. Then the guest owner can do a kdump on this unexpected #VC and collect the data to debug the issue. With just killing the guest from the host side this data would be lost. Regards, Joerg
