I don't mean to be obtuse, but are you saying kvm_main_loop_wait() *should* dequeue the pending signal or *does* dequeue the pending signal, just not for "host userspace"?
Steven ----- Original Message ----- From: "Avi Kivity" <[email protected]> To: "Steven Stovall" <[email protected]> Sent: Thursday, January 15, 2009 1:46:30 PM GMT -08:00 US/Canada Pacific Subject: Re: is vmx_vcpu_run deprecated in kvm-77? Please keep the conversation on the kvm list. Steven Stovall wrote: > Avi, > > Not sure what you mean by "kvm-userspace", The code in kvm-userspace.git, namely libkvm and qemu. > but the app uses qemu and libkvm ioctls to interface with kvm. So this is a host-side app, right, not running in the guest? Please describe it. > The problem seems to be that for some reason the call to signal_pending() > from __vcpu_run is always true and never lets vmx_vcpu_run() be called (i > never see the msrs set either). The only exit_reasons seen are KVM_EXIT_INTR. > I've been looking at this hard for 2 weeks now, and its driving me crazy. Not > to mention my boss. > I don't care much about your boss, but you should have posted earlier. What happens is that a signal is pending, and host userspace doesn't dequeue it, so it remains pending. This is handled by kvm_main_loop_wait(). -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
