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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 09658C001E0 for ; Mon, 31 Jul 2023 22:40:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229890AbjGaWku (ORCPT ); Mon, 31 Jul 2023 18:40:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50710 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229379AbjGaWkt (ORCPT ); Mon, 31 Jul 2023 18:40:49 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 56E51198D; Mon, 31 Jul 2023 15:40:44 -0700 (PDT) Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36VMbxgh016037; Mon, 31 Jul 2023 22:40:26 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=message-id : date : mime-version : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding; s=qcppdkim1; bh=rIlBLIb6J29dQChrALBuoQv3IUru+Su4cNGIp9R6VBM=; b=CQpCVOceVSzG/zkrcdzTVAgLDszSm3tfp9irZVQZTmTWZbETwbWwjSdg9shLTHxpvGxc hcyIvCBR11ZzB7F+Wwv7G7oJRInRYbgOPl4DIJZM9Uy0AeQ/QYNTROpDqAyMKsm1OssL 9ViwfxnkRniBJ0FPGMBQZafbmS/3oD+izUch9ZAISqN01SEaw39BUQDkno0fMhSgyNQI 7O69hbMmZLvER7tm/nLQEK/B3y42LgKmnOB/h+nzFwKv6IJ3TuSmwRg7EI5rA5SebjLI TiZ8ObDuBsYDDpDSASP+6mPuZyBwr/vav3tS1Wxgi6pKyYel3nDhWXUH4/kCIYUiLE5B vA== Received: from nasanppmta02.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3s6ckfhnqq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 31 Jul 2023 22:40:26 +0000 Received: from nasanex01a.na.qualcomm.com (nasanex01a.na.qualcomm.com [10.52.223.231]) by NASANPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 36VMePaK021667 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 31 Jul 2023 22:40:25 GMT Received: from [10.110.3.154] (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Mon, 31 Jul 2023 15:40:23 -0700 Message-ID: <3e2bf03e-2bc1-445e-d8ce-4975c044eea0@quicinc.com> Date: Mon, 31 Jul 2023 15:40:23 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH] EDAC/device: Add sysfs notification for UE,CE count change Content-Language: en-US To: Deepti Jaggi , , , , , CC: , , , References: <20230731220059.28474-1-quic_djaggi@quicinc.com> From: Trilok Soni In-Reply-To: <20230731220059.28474-1-quic_djaggi@quicinc.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: P3kjkgWgpgSkJneTiXXD32nX3aszakiC X-Proofpoint-ORIG-GUID: P3kjkgWgpgSkJneTiXXD32nX3aszakiC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-31_15,2023-07-31_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 malwarescore=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 adultscore=0 bulkscore=0 mlxlogscore=416 spamscore=0 clxscore=1011 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307310206 Precedence: bulk List-ID: X-Mailing-List: linux-edac@vger.kernel.org On 7/31/2023 3:00 PM, Deepti Jaggi wrote: > A daemon running in user space collects information on correctable > and uncorrectable errors from EDAC driver by reading corresponding > sysfs entries and takes appropriate action. Which daemon we are referring here? Can you please provide the link to the project? Are you using this daemon? https://mcelog.org/ - It is for x86, but is your daemon project different? > This patch adds support for user space daemon to wait on poll() until > the sysfs entries for UE count and CE count change and then read updated > counts instead of continuously monitoring the sysfs entries for > any changes. The modifications below are architecture agnostic so I really want to know what exactly we are fixing and if there is a problem. -- ---Trilok Soni