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Date: Tue, 21 Jul 2020 07:44:07 -0400 From: Qian Cai <cai@....pw> To: Michal Hocko <mhocko@...nel.org> Cc: linux-mm@...ck.org, LKML <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, Linus Torvalds <torvalds@...ux-foundation.org>, Tim Chen <tim.c.chen@...ux.intel.com> Subject: Re: [RFC PATCH] mm: silence soft lockups from unlock_page > On Jul 21, 2020, at 7:25 AM, Michal Hocko <mhocko@...nel.org> wrote: > > Are these really important? I believe I can dig that out from the bug > report but I didn't really consider that important enough. Please dig them out. We have also been running those things on “large” powerpc as well and never saw such soft-lockups. Those details may give us some clues about the actual problem. Once we understand the problem better, we may judge if this “hack” is really worth it.
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