Gleb Natapov wrote: > On Fri, May 29, 2009 at 10:23:24AM +0200, Jan Kiszka wrote: >> Hi Gleb, >> >> with latest kernel modules, namely beginning with 6bc0a1a235 (Remove >> irq_pending bitmap), I'm loosing interrupts with upstream's KVM support. >> After some bisecting, hair-pulling and a bit meditation I added a >> WARN_ON(kvm_cpu_has_interrupt(vcpu)) to kvm_vcpu_ioctl_interrupt, and it >> actually triggered right before the guest got stuck. >> >> This didn't trigger with qemu-kvm (and -no-kvm-irqchip) yet but, on the >> other hand, I currently do not see a potential bug in upstream's >> kvm_arch_pre_run. Could you have a look if you can reproduce, >> specifically if this isn't a KVM kernel issue in the end? >> > In kvm_cpu_exec() after calling kvm_arch_pre_run() env->exit_request is > tested and function can exit without calling kvm_vcpu_ioctl(KVM_RUN). > Can you check if this what happens in your case? This path is executed quite frequently here. No obvious correlation with the lost IRQ. Jan -- Siemens AG, Corporate Technology, CT SE 2 Corporate Competence Center Embedded Linux -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
