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a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1711790409; bh=MX13qRtFD8P8UmzUhK9zviev2uqLSp3Ef0aIRExWyns=; h=Subject:To:Cc:From:Date:In-Reply-To:From; b=vsAjaq55WjBMqjOZ0zYUkR+PdYjQQzekQhNJ+fTrs4ehdRSYydx7ePINM+ok1kuuh dKY512ZeUaRRuCrPbG+BOlgHDsBrT6yNbOgZxeQAN4iVyEL5tFJ5bYPqRsicuBUT+P PrRsLSaH1b+lVZW+pwduhn+Pa02P3zDNrfo0vnFA= Subject: Patch "mm/memory-failure: fix an incorrect use of tail pages" has been added to the 4.19-stable tree To: akpm@linux-foundation.org,dan.j.williams@intel.com,gregkh@linuxfoundation.org,linux-mm@kvack.org,liushixin2@huawei.com,n-horiguchi@ah.jp.nec.com,sashal@kernel.org,willy@infradead.org Cc: From: Date: Sat, 30 Mar 2024 10:20:06 +0100 In-Reply-To: <20240307125150.2849068-1-liushixin2@huawei.com> Message-ID: <2024033006-retreat-unknown-b871@gregkh> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit X-stable: commit X-Patchwork-Hint: ignore X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: C437D20003 X-Stat-Signature: xra617xrx8mwbd3yutej7999f9m5ayxn X-HE-Tag: 1711790410-635154 X-HE-Meta: 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 lmDb7ftL 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 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: List-Subscribe: List-Unsubscribe: This is a note to let you know that I've just added the patch titled mm/memory-failure: fix an incorrect use of tail pages to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mm-memory-failure-fix-an-incorrect-use-of-tail-pages.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >From liushixin2@huawei.com Sat Mar 30 10:11:48 2024 From: Liu Shixin Date: Thu, 7 Mar 2024 20:51:50 +0800 Subject: mm/memory-failure: fix an incorrect use of tail pages To: Matthew Wilcox , Andrew Morton , Sasha Levin , Dan Williams , Naoya Horiguchi Cc: , , , Liu Shixin Message-ID: <20240307125150.2849068-1-liushixin2@huawei.com> From: Liu Shixin When backport commit c79c5a0a00a9 to 4.19-stable, there is a mistake change. The head page instead of tail page should be passed to try_to_unmap(), otherwise unmap will failed as follows. Memory failure: 0x121c10: failed to unmap page (mapcount=1) Memory failure: 0x121c10: recovery action for unmapping failed page: Ignored Fixes: c6f50413f2aa ("mm/memory-failure: check the mapcount of the precise page") Signed-off-by: Liu Shixin Signed-off-by: Greg Kroah-Hartman --- mm/memory-failure.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1033,7 +1033,7 @@ static bool hwpoison_user_mappings(struc if (kill) collect_procs(hpage, &tokill, flags & MF_ACTION_REQUIRED); - unmap_success = try_to_unmap(p, ttu); + unmap_success = try_to_unmap(hpage, ttu); if (!unmap_success) pr_err("Memory failure: %#lx: failed to unmap page (mapcount=%d)\n", pfn, page_mapcount(p)); Patches currently in stable-queue which might be from liushixin2@huawei.com are queue-4.19/mm-memory-failure-fix-an-incorrect-use-of-tail-pages.patch