Re: [Qemu-devel] [PATCH 0/2] virtio-scsi: fix hotplug ->reset() vs event race

[Fam Zheng]

On Tue, 07/10 16:50, Stefan Hajnoczi wrote:
> The virtio-scsi command virtqueues run during hotplug.  This creates the
> possibility of race conditions since the guest can submit commands while the
> monitor is performing hotplug.
> 
> See Patch 2 for a fix for the ->reset() vs event race condition that Zhengui 
> Li
> encountered.
> 
> Zhengui Li: Sorry it took me so long to look into this.  Please let me know if
> this fixes the issue you are seeing.  Thanks!
> 
> Stefan Hajnoczi (2):
>   qdev: add HotplugHandler->post_plug() callback
>   virtio-scsi: fix hotplug ->reset() vs event race
> 
>  include/hw/hotplug.h  | 12 ++++++++++++
>  hw/core/hotplug.c     | 11 +++++++++++
>  hw/core/qdev.c        |  7 +++++++
>  hw/scsi/virtio-scsi.c | 11 ++++++++++-
>  4 files changed, 40 insertions(+), 1 deletion(-)
> 
> -- 
> 2.17.1

Reviewed-by: Fam Zheng <address@hidden>