Re: [BUG][v6.9-rc6] Deadlock with: Revert "drm/qxl: simplify qxl_fence_wait"

[Steven Rostedt]

On Tue, 7 May 2024 15:54:21 +1000
David Airlie <airlied@xxxxxxxxxx> wrote:

> I expec this will reintroduce the other problems that caused this
> change in the first place, but I think this should at least bring us
> back to regression equilibrium. I can't recommend anyone use qxl hw
> over virtio-gpu hw in their VMs, since virtio-gpu is actually hw
> designed for virt.

I agree that it will likely cause the issues that this was addressing
to come back, but you can't have a fix that introduces a deadlock.

Perhaps the deadlock didn't exist before, and the printk updates
changed the way it works to introduce it now?

-- Steve