On pe, 2017-04-07 at 01:23 +0200, Andrea Arcangeli wrote:
> synchronize_rcu/synchronize_sched/synchronize_rcu_expedited() will
> hang until its own workqueues are run. The i915 gem workqueues will
> wait on the struct_mutex to be released. So we cannot wait for a
> quiescent state using those rcu
On pe, 2017-04-07 at 01:23 +0200, Andrea Arcangeli wrote:
> synchronize_rcu/synchronize_sched/synchronize_rcu_expedited() will
> hang until its own workqueues are run. The i915 gem workqueues will
> wait on the struct_mutex to be released. So we cannot wait for a
> quiescent state using those rcu
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