On Sun, 8 Dec 2019 at 16:13, Chris Wilson wrote:
>
> As i915_gem_object_unbind() waits on an rcu_barrier() to flush vm
> releases (and destruction of their bound vma), we have to be careful not
> to invoke that barrier from beneath the shrinker:
>
> <4> [430.222671] WARNING: possible circular lock
As i915_gem_object_unbind() waits on an rcu_barrier() to flush vm
releases (and destruction of their bound vma), we have to be careful not
to invoke that barrier from beneath the shrinker:
<4> [430.222671] WARNING: possible circular locking dependency detected
<4> [430.222673] 5.4.0-rc8-CI-CI_DRM_
