From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id B5DBEC433EF for ; Tue, 12 Apr 2022 20:01:11 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 2C6666B0072; Tue, 12 Apr 2022 16:01:11 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 275F36B0074; Tue, 12 Apr 2022 16:01:11 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 14C126B0072; Tue, 12 Apr 2022 16:01:11 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0020.hostedemail.com [216.40.44.20]) by kanga.kvack.org (Postfix) with ESMTP id F1D3C6B0072 for ; Tue, 12 Apr 2022 16:01:10 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id B9C081839A9DC for ; Tue, 12 Apr 2022 20:01:10 +0000 (UTC) X-FDA: 79349295900.28.DAB3BE9 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf29.hostedemail.com (Postfix) with ESMTP id 20E1012000C for ; Tue, 12 Apr 2022 20:01:04 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 48EF261C06; Tue, 12 Apr 2022 20:01:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6D4C3C385A1; Tue, 12 Apr 2022 20:01:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1649793663; bh=SabbeZvmcCfj5rT++3At8fsOTYeWFK1V2Ew5ewuHzbQ=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=rDjSxQnWMpLYWW7G7/2DvbbU5UboCtWq/G61qjKzJUzWEbaOsV2G4tLqFOJosX0+r 9HnhRQcqg42DwTZgczOTCLNgOKLcon+aoGHWp1oqw+s1Y6JUVoMJtUiMQvBYL8xVwT R3nBBcqQeEuFDD3AmvMfn6hhqHaWDR25OU/vRVtI= Date: Tue, 12 Apr 2022 13:01:02 -0700 From: Andrew Morton To: Xu Yu Cc: linux-mm@kvack.org, naoya.horiguchi@nec.com, linmiaohe@huawei.com, osalvador@suse.de Subject: Re: [PATCH v2] mm/memory-failure.c: skip huge_zero_page in memory_failure() Message-Id: <20220412130102.024bf04f99baa2206772b423@linux-foundation.org> In-Reply-To: <497d3835612610e370c74e697ea3c721d1d55b9c.1649775850.git.xuyu@linux.alibaba.com> References: <497d3835612610e370c74e697ea3c721d1d55b9c.1649775850.git.xuyu@linux.alibaba.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: fhnmhgmihuwhdnn38cje81jfhthumwia X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 20E1012000C Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=rDjSxQnW; dmarc=none; spf=pass (imf29.hostedemail.com: domain of akpm@linux-foundation.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org X-Rspam-User: X-HE-Tag: 1649793664-426163 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: On Tue, 12 Apr 2022 23:11:01 +0800 Xu Yu wrote: > Kernel panic when injecting memory_failure for the global huge_zero_page, > when CONFIG_DEBUG_VM is enabled, as follows. > > ... > > > Reported-by: Abaci > Suggested-by: Naoya Horiguchi > Cc: Miaohe Lin > Cc: Oscar Salvador > Signed-off-by: Xu Yu Thanks, I added a cc:stable to this. If anyone could suggest a suitable Fixes:, that would help the -stable people.