Re: [PATCH net v3] failover: allow name change on IFF_UP slave interfaces

2019-03-26 Thread Stephen Hemminger
On Tue, 26 Mar 2019 19:48:13 -0400 Si-Wei Liu wrote: > When a netdev appears through hot plug then gets enslaved by a failover > master that is already up and running, the slave will be opened > right away after getting enslaved. Today there's a race that userspace > (udev) may fail to rename the

Re: [RFC PATCH] virtio_ring: Use DMA API if guest memory is encrypted

2019-03-26 Thread Michael S. Tsirkin
On Wed, Jan 30, 2019 at 08:44:27AM +0100, Christoph Hellwig wrote: > On Tue, Jan 29, 2019 at 09:36:08PM -0500, Michael S. Tsirkin wrote: > > This has been discussed ad nauseum. virtio is all about compatibility. > > Losing a couple of lines of code isn't worth breaking working setups. > > People th

Re: INFO: task hung in vhost_net_stop_vq

2019-03-26 Thread Dmitry Vyukov via Virtualization
On Tue, Mar 26, 2019 at 11:17 AM Jason Wang wrote: > > > On 2019/3/25 下午10:02, Michael S. Tsirkin wrote: > > Looks like more iotlb locking mess? > > > Looking at the calltrace: > > [ 221.743675] = > [ 221.744297] [ INFO: possible recursive locking dete

Re: INFO: task hung in vhost_net_stop_vq

2019-03-26 Thread Jason Wang
On 2019/3/25 下午10:02, Michael S. Tsirkin wrote: Looks like more iotlb locking mess? Looking at the calltrace: [ 221.743675] = [ 221.744297] [ INFO: possible recursive locking detected ] [ 221.744944] 4.7.0+ #1 Not tainted [ 221.745326]