Re: [PATCH] rcutorture: Avoid problematic critical section nesting on RT
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: 2021-08-19 18:45:31
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linux-rt-users, lkml, rcu
On 2021-08-19 11:20:35 [-0700], Paul E. McKenney wrote:
quoted
This piece above, I don't understand. I had it running for a while and it didn't explode. Let me try TREE01 for 30min without that piece.This might be historical. There was a time when interrupts being disabled across rcu_read_unlock() meant that preemption had to have been disabled across the entire RCU read-side critical section. I am not seeing a purpose for it now, but I could easily be missing something, especially given my tenuous grasp of RT.
Okay. So the 30min test didn't trigger any warnings…
Either way, looking forward to the next version!
Good. So if you liked what you have seen then I'm going to resubmit the above as a proper patch then. Thanks!
Thanx, Paul
Sebastian _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel