Received: by 2002:a05:6358:1087:b0:cb:c9d3:cd90 with SMTP id j7csp1304482rwi; Mon, 10 Oct 2022 14:26:06 -0700 (PDT) X-Google-Smtp-Source: AMsMyM5+G5NGSIB9LnD4Lt/rhVvrA0WQLqiTOaytA7uPOGTJ/aeOSv0xj61oMW/Nmka5VsTWinpN X-Received: by 2002:a17:90b:1651:b0:20d:5255:859 with SMTP id il17-20020a17090b165100b0020d52550859mr4372519pjb.185.1665437166677; Mon, 10 Oct 2022 14:26:06 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1665437166; cv=none; d=google.com; s=arc-20160816; b=crY2FsKdai7/jGe9wpm20WdvzEIxI4u7LBQ/DrKpgc8VvRc2zOM0Mw/QvWXFC661Ly CXo0+9+2uIV9dHa926TEgFlyTZzcQ+UDkLKzEmS9+yk8Iult1etb+v0wOyc5OVyEuIYi rB0L+WXMsQeLHvnlEU+yQzh1dl9M0lwxll8NnmpaKlMU9+n8mq4iMV1eJH0NGpZFZPi5 9SGPEK6g1LpiD8JonHyP/QA4ikojPSM2FR0dlgNV2ot+R0fmBzZALKEuTCH/9sCqgpIQ yfVE+RIRQeoctEF+34dRW5I9bv74Bb6JDmqYKbFraOBfmANC4Azgw+x5616NDIeTQe6b +9zw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=3DqQXJCCi6a0pdKCJkN/56qZdQ1tlN+/58wkHRl8e6c=; b=Ck7oxvMR8ZNkYFt11mt0D/RzO44QzdNZe8GT6zvK8j0B12OsZ5EAYFk7z9EVIyDIrL 0rHEUXfOAD1PT8vCN1lwUVpdJBY+mLgAt4ieNiYXk4a706T+o3mN2MSlork5RU7HQeBu AXOBb4F4rSAvewT66jMm2eo/Qc1XSNpwNkpH2LSUhdwLVu3gwHE29EatXnYci+cVUXsb DoUwClr6SEEOWywEzoOUnByMqrf8E8IG4n2V7jeQgtObgO31E0sbjoNRsnooY0GoFifP 0CIoUge9zPHRmos/t0vR/hZkPRCXyqFHzyxi11CgS13B0UcefGM3oKEch9Gi/jktBX11 wY7g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=l5ikvtwL; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id q12-20020a056a00150c00b00563960fdb21si1541308pfu.260.2022.10.10.14.25.55; Mon, 10 Oct 2022 14:26:06 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=l5ikvtwL; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229932AbiJJUaC (ORCPT + 99 others); Mon, 10 Oct 2022 16:30:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229909AbiJJU3i (ORCPT ); Mon, 10 Oct 2022 16:29:38 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B17B5140CE for ; Mon, 10 Oct 2022 13:28:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=3DqQXJCCi6a0pdKCJkN/56qZdQ1tlN+/58wkHRl8e6c=; b=l5ikvtwLpF/QEIOI+DuuJHxSqV GaCo0GGurYGvbSvAAUfzFMkb+Wj2rR+1h1khXTxyXuNIeGOfVoJ9UjKwC89yXeprxYcg1Wl7iKJb2 YbfU08L4gZWUA7jWICZVUbsCM3wZZECLLp/oaOoNM3PqKyBzca8i0vGCoByncHyD94D98oxKhfRs7 0sZMbKqjxBc0TGe75AlWvZS/Hu45gLs4bN6JtoEu5pNMvqrPqgZQ7tzK5IZR9b36mHUzuWsh17vKx 42qLQsrWQMbYA8xEMbcAJlcEairUZzwu3/Uo2wQdbBpiaVgb/pH/hXSxIB8JSlo4ic8/QyuWR5Qac xOw6LWOQ==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1ohzNX-004TVR-EO; Mon, 10 Oct 2022 20:28:01 +0000 Date: Mon, 10 Oct 2022 21:27:59 +0100 From: Matthew Wilcox To: Wei Chen Cc: vbabka@suse.cz, hughd@google.com, dhowells@redhat.com, linux-kernel@vger.kernel.org Subject: Re: kernel BUG in page_try_dup_anon_rmap Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 10, 2022 at 08:25:58PM +0800, Wei Chen wrote: > Dear Linux Developer, > > Recently when using our tool to fuzz kernel, the following crash was triggered: We don't need more people running syzkaller. We need more people investigating syzkaller reports.