2016-06-29 6:55 GMT+08:00 Wanpeng Li <kernel...@gmail.com>: > 2016-06-29 4:07 GMT+08:00 Paolo Bonzini <pbonz...@redhat.com>: >> >> >> On 28/06/2016 20:34, yunhong jiang wrote: >>> Paolo, thanks for reply. >>> >>> Which race window you are talking about? Is it the >>> kvm_lapic_switch_to_hv_timer()? If yes, hope we will not forgot it once the >>> lapic timer is not pinned anymore in future. >> >> Yes, it's that one. This is a good point against using >> local_irq_save/restore. >> >> Paolo > > How about something like below(untested, just want to know if this is > what you mean):
It can also fix the bug after my testing, I can send out a formal one if it looks good to you. Regards, Wanpeng Li