>>> On 06.09.16 at 10:53, <xuqu...@huawei.com> wrote: > to be honest, my fix is also a tradeoff.. w/ my patch, multiple pending pt > interrupt instances may be combined as one injection of guest timer > interrupt.. > but as Yang said, It should be ok since it happens rarely and even native > OS will encounter the same problem if it disable the interrupt for too long.
And one OS may properly deal with that situation while another might not. For example, let me remind you of issues the hypervisor had in earlier days when no event/softirq processing happened for long enough, resulting in time management issues due to missed platform timer overflow handling. IOW an OS may avoid that situation by simply not disabling IRQs for too long a time. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
