From nobody Wed Feb 11 10:05:59 2026 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 52D8D58AB9 for ; Tue, 21 May 2024 23:55:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.165.32 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716335718; cv=none; b=cN045tGrpka/YVZ6er92R7DgDYirZF66jsPcTHlcNWFjKbs63N8MzMkljUol6HQS2E97vRUTPYMznS4Jgi/E749qS/cPGMBpjbvPX8squ5B77hWLshgCavtEGQdfIVqpNK2UfJ+0wLGi34JLdlKk91oCnpkPZ4nTvq9231h1WVo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716335718; c=relaxed/simple; bh=bu3dUrEttL0jhrzOAsEVq2ALqieoahCw/j2brR0L42A=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=PeDTZKUHT/ZdoMkbzOyruIlZ35/leVTxj4Xw+q5FHpt9yMPUtad6IjfMJ/II2wBk7kxHWvrC/q7hZnQdyhVoKAVsdztYvrLO3e4DUV9XHYq4DpsddtYLRWMVLrC1dnsFVAdwyVNOQBS2cVEidZW9tR2lmz7o/CcSMRNeLnHU4j4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=g6cUrmqR; arc=none smtp.client-ip=205.220.165.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="g6cUrmqR" Received: from pps.filterd (m0246627.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 44LJkCvG016732; Tue, 21 May 2024 23:55:07 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=corp-2023-11-20; bh=uGf2vROyvg6ZwMJ/Hw9eQH29lzC7eJMyJb27dxpCla8=; b=g6cUrmqR0x6RsZLklZW3C4yPOprOOlqOabivyLBi5K34GjPi1uBH4gEk33FmgbZijwgo yL5DHU5SbsvaTOe2Mpsin+IDSQyt3m5kix9y2mHjY1GsheO09ZlAvUT0wTGZ9q4ZHMc4 SCMHgSJDmicGy1fnDevChzwRdfStdVdgExvqtnuDDeR7s24DtvJkXfIXJIQ7VbklfuGo xNvCuTtvOXVZvoPsFT1Xdb0PH4SfStl41HmzY0K/Rov+ETG5RUKOTOL4kt/WiPD1pzaG ktn4cwsBAGqOdsUapynVBGGDWyfDHn8rYty9cHDU5+MHNSFB930W16IhsUwIeoflVuCx bQ== Received: from iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta03.appoci.oracle.com [130.35.103.27]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3y6jx2efc5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 21 May 2024 23:55:07 +0000 Received: from pps.filterd (iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 44LMZkKT002667; Tue, 21 May 2024 23:55:05 GMT Received: from brm-x62-16.us.oracle.com (brm-x62-16.us.oracle.com [10.80.150.37]) by iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTP id 3y6js8erce-3; Tue, 21 May 2024 23:55:05 +0000 From: Jane Chu To: linmiaohe@huawei.com, nao.horiguchi@gmail.com, akpm@linux-foundation.org, osalvador@suse.de, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 2/5] mm/madvise: Add MF_ACTION_REQUIRED to madvise(MADV_HWPOISON) Date: Tue, 21 May 2024 17:54:26 -0600 Message-Id: <20240521235429.2368017-3-jane.chu@oracle.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20240521235429.2368017-1-jane.chu@oracle.com> References: <20240521235429.2368017-1-jane.chu@oracle.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.12.28.16 definitions=2024-05-21_14,2024-05-21_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 bulkscore=0 suspectscore=0 spamscore=0 mlxscore=0 adultscore=0 mlxlogscore=999 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2405010000 definitions=main-2405210181 X-Proofpoint-GUID: s8TZqutMV_sNhtOaqmw9r6gFiSZXwMpt X-Proofpoint-ORIG-GUID: s8TZqutMV_sNhtOaqmw9r6gFiSZXwMpt Content-Type: text/plain; charset="utf-8" The soft hwpoison injector via madvise(MADV_HWPOISON) operates in a synchrous way in a sense, the injector is also a process under test, and should it have the poisoned page mapped in its address space, it should get killed as much as in a real UE situation. Doing so align with what the madvise(2) man page says: " "This operation may result in the calling process receiving a SIGBUS and the page being unmapped." Signed-off-by: Jane Chu Reviewed-by: Oscar Salvador Acked-by: Miaohe Lin --- mm/madvise.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/madvise.c b/mm/madvise.c index c8ba3f3eb54d..d8a01d7b2860 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -1147,7 +1147,7 @@ static int madvise_inject_error(int behavior, } else { pr_info("Injecting memory failure for pfn %#lx at process virtual addre= ss %#lx\n", pfn, start); - ret =3D memory_failure(pfn, MF_COUNT_INCREASED | MF_SW_SIMULATED); + ret =3D memory_failure(pfn, MF_ACTION_REQUIRED | MF_COUNT_INCREASED | M= F_SW_SIMULATED); if (ret =3D=3D -EOPNOTSUPP) ret =3D 0; } --=20 2.39.3