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Date: Wed, 1 Nov 2017 17:31:16 +0900 From: Byungchul Park <byungchul.park@....com> To: Peter Zijlstra <peterz@...radead.org> Cc: Michal Hocko <mhocko@...nel.org>, Dmitry Vyukov <dvyukov@...gle.com>, syzbot <bot+e7353c7141ff7cbb718e4c888a14fa92de41ebaa@...kaller.appspotmail.com>, Andrew Morton <akpm@...ux-foundation.org>, Dan Williams <dan.j.williams@...el.com>, Johannes Weiner <hannes@...xchg.org>, Jan Kara <jack@...e.cz>, jglisse@...hat.com, LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org, shli@...com, syzkaller-bugs@...glegroups.com, Thomas Gleixner <tglx@...utronix.de>, Vlastimil Babka <vbabka@...e.cz>, ying.huang@...el.com, kernel-team@....com Subject: Re: possible deadlock in lru_add_drain_all On Tue, Oct 31, 2017 at 04:25:32PM +0100, Peter Zijlstra wrote: > But this report only includes a single (cpu-up) part and therefore is Thanks for fixing me, Peter. I thought '#1 -> #2' and '#2 -> #3', where #2 is 'cpuhp_state', should have been built with two different classes of #2 as the latest code. Sorry for confusing Michal. > not affected by that change other than a lock name changing.
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