On 2020-07-15 20:35:37 [+0200], Uladzislau Rezki (Sony) wrote: > @@ -3306,6 +3307,9 @@ kvfree_call_rcu_add_ptr_to_bulk(struct kfree_rcu_cpu *krcp, void *ptr) > if (IS_ENABLED(CONFIG_PREEMPT_RT)) > return false; > > + preempt_disable(); > + krc_this_cpu_unlock(*krcp, *flags); Now you enter memory allocator with disabled preemption. This isn't any better but we don't have a warning for this yet. What happened to the part where I asked for a spinlock_t? > + > /* > * NOTE: For one argument of kvfree_rcu() we can > * drop the lock and get the page in sleepable Sebastian
