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[209.132.180.67]) by mx.google.com with ESMTP id 36si18420316pla.80.2019.07.25.15.03.07; Thu, 25 Jul 2019 15:03:22 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2018-07-02 header.b=zelHaYCV; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726762AbfGYWBw (ORCPT + 99 others); Thu, 25 Jul 2019 18:01:52 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:43226 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726723AbfGYWBw (ORCPT ); Thu, 25 Jul 2019 18:01:52 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x6PLnBY4047100; Thu, 25 Jul 2019 22:01:47 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id; s=corp-2018-07-02; bh=7FptRZmjEs2pVIwTHSlVNGQPR98w4TY5Ui3dappIUrg=; b=zelHaYCV1Eo2luXTb4NIC4ATeklX43FoLNIg+/v93pLzkx4YdPoO3fyCiM3L0fPupdyi U852W0/B/wTmHXmjk2GwVN78cODCp6JFURtLPB/JVE5cNpCMDJU5izjBJ52Pf04F4POy bv4XKNPSKbv1P/Wmn0xTL6YZeNo+iPnhKDOvgWpma4fbUlMbmdnA5r8PXxPLv2+9KB7O tNfOWJi83IepiGbtaooOLI6NBnqJwhGiSyaYAQ7vnSKXLxkPBTdhx96K7Q/hQWzx5lt5 iroEHCwjWevK5I1aeJgvH6+PlR/vjvWG7DK9jwhcmMB/BjD7IkfxzgCngaJL+pzplMCB tQ== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by userp2130.oracle.com with ESMTP id 2tx61c6r9g-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 25 Jul 2019 22:01:47 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x6PLqUDr117787; Thu, 25 Jul 2019 22:01:47 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userp3030.oracle.com with ESMTP id 2tx60yjmj1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 25 Jul 2019 22:01:47 +0000 Received: from abhmp0010.oracle.com (abhmp0010.oracle.com [141.146.116.16]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x6PM1jni011429; Thu, 25 Jul 2019 22:01:45 GMT Received: from brm-x32-03.us.oracle.com (/10.80.150.35) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 25 Jul 2019 15:01:45 -0700 From: Jane Chu To: n-horiguchi@ah.jp.nec.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: linux-nvdimm@lists.01.org Subject: [PATCH v3 0/2] mm/memory-failure: Poison read receives SIGKILL instead of SIGBUS issue Date: Thu, 25 Jul 2019 16:01:39 -0600 Message-Id: <1564092101-3865-1-git-send-email-jane.chu@oracle.com> X-Mailer: git-send-email 1.8.3.1 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9329 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=968 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1907250263 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9329 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1907250263 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changes in v3: - move **tk cleanup to its own patch Changes in v2: - move 'tk' allocations internal to add_to_kill(), suggested by Dan; - ran checkpatch.pl check, pointed out by Matthew; - Noaya pointed out that v1 would have missed the SIGKILL if "tk->addr == -EFAULT", since the code returns early. Incorporated Noaya's suggestion, also, skip VMAs where "tk->size_shift == 0" for zone device page, and deliver SIGBUS when "tk->size_shift != 0" so the payload is helpful; - added Suggested-by: Naoya Horiguchi Jane Chu (2): mm/memory-failure.c clean up around tk pre-allocation mm/memory-failure: Poison read receives SIGKILL instead of SIGBUS if mmaped more than once mm/memory-failure.c | 62 ++++++++++++++++++++++------------------------------- 1 file changed, 26 insertions(+), 36 deletions(-) -- 1.8.3.1