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[172.10.233.147]) by smtp.gmail.com with ESMTPSA id r3sm9571831ooo.16.2020.10.11.13.21.24 (version=TLS1 cipher=ECDHE-ECDSA-AES128-SHA bits=128/128); Sun, 11 Oct 2020 13:21:24 -0700 (PDT) Date: Sun, 11 Oct 2020 13:21:12 -0700 (PDT) From: Hugh Dickins X-X-Sender: hugh@eggly.anvils To: Denis Lisov cc: Matthew Wilcox , Song Liu , Andrew Morton , "bugzilla-daemon@bugzilla.kernel.org" , "linux-mm@kvack.org" Subject: Re: [Bug 206569] BUG at mm/filemap.c:2529: VM_BUG_ON_PAGE(page_to_pgoff(page) != offset) In-Reply-To: <20200501180513.GB29705@bombadil.infradead.org> Message-ID: References: <20200219144635.3b7417145de19b65f258c943@linux-foundation.org> <20200220002520.GT24185@bombadil.infradead.org> <367AD482-11D3-44D6-94DC-ED4D395084C8@fb.com> <20200501180513.GB29705@bombadil.infradead.org> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Adding a note to help update bugzilla 206569: the v5.9 tree now has 033b5d775511 ("mm/khugepaged: fix filemap page_to_pgoff(page) != offset") which fixes this VM_BUG_ON_PAGE (or data corruption) when CONFIG_NUMA is not set: we are hoping that may have have been the problem here.