Re: [PATCHv2] qemu-kvm: fix crash on reboot with vhost-net

[Marcelo Tosatti <mtosatti@redhat.com>]

On Wed, Apr 28, 2010 at 12:27:38PM +0300, Michael S. Tsirkin wrote:
> When vhost-net is disabled on reboot, we set msix mask notifier
> to NULL to disable further mask/unmask notifications.
> Code currently tries to pass this NULL to notifier,
> leading to a crash.  The right thing to do is
> to add explicit APIs to enable/disable notifications.
> Now when disabling notifications:
> - if vector is masked, we don't need to notify backend,
>   just disable future notifications
> - if vector is unmasked, invoke callback to unassign backend,
>   then disable future notifications
> 
> This patch also polls notifier before closing it,
> to make sure we don't lose events if poll callback
> didn't have time to run.
> 
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Applied, thanks.