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Date: Thu, 23 Mar 2017 16:46:37 +0100 From: Johannes Berg <johannes@...solutions.net> To: paulmck@...ux.vnet.ibm.com Cc: linux-kernel <linux-kernel@...r.kernel.org>, Nicolai Stange <nicstange@...il.com>, gregkh <gregkh@...uxfoundation.org> Subject: Re: deadlock in synchronize_srcu() in debugfs? On Thu, 2017-03-23 at 08:37 -0700, Paul E. McKenney wrote: > I have not seen this, but my usual question for __synchronize_srcu() > is if some other task is blocked holding srcu_read_lock() for that > same srcu_struct. > Not as far as I can see - but that was the scenario I was outlining in my second email, I guess. I'll need to reproduce it and a get a fuller view of the system, I only have the "echo w > sysrq-trigger" output right now. Thanks, johannes
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