Re: [PATCH v2 5/7] vhost-user: Introduce nested event loop in vhost_user_read()

2021-03-15 Thread Stefan Hajnoczi
On Fri, Mar 12, 2021 at 10:22:10AM +0100, Greg Kurz wrote: > A deadlock condition potentially exists if a vhost-user process needs > to request something to QEMU on the slave channel while processing a > vhost-user message. > > This doesn't seem to affect any vhost-user implementation so far, but

[PATCH v2 5/7] vhost-user: Introduce nested event loop in vhost_user_read()

2021-03-12 Thread Greg Kurz
A deadlock condition potentially exists if a vhost-user process needs to request something to QEMU on the slave channel while processing a vhost-user message. This doesn't seem to affect any vhost-user implementation so far, but this is currently biting the upcoming enablement of DAX with virtio-f