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27 Aug 2021 19:20:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,358,1620716400"; d="scan'208";a="528533365" Received: from fmsmsx606.amr.corp.intel.com ([10.18.126.86]) by FMSMGA003.fm.intel.com with ESMTP; 27 Aug 2021 19:20:07 -0700 Received: from fmsmsx610.amr.corp.intel.com (10.18.126.90) by fmsmsx606.amr.corp.intel.com (10.18.126.86) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.10; Fri, 27 Aug 2021 19:20:06 -0700 Received: from fmsmsx610.amr.corp.intel.com (10.18.126.90) by fmsmsx610.amr.corp.intel.com (10.18.126.90) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.10; Fri, 27 Aug 2021 19:20:06 -0700 Received: from fmsmsx610.amr.corp.intel.com ([10.18.126.90]) by fmsmsx610.amr.corp.intel.com ([10.18.126.90]) with mapi id 15.01.2242.010; Fri, 27 Aug 2021 19:20:06 -0700 From: "Luck, Tony" To: "Luck, Tony" , Al Viro Thread-Topic: [PATCH v7 05/19] iov_iter: Introduce fault_in_iov_iter_writeable Thread-Index: AQHXm5pzAH4qSaa/BkWiD/swcmZu0auILsxw Date: Sat, 28 Aug 2021 02:20:05 +0000 Message-ID: References: <20210827164926.1726765-1-agruenba@redhat.com> <20210827164926.1726765-6-agruenba@redhat.com> <20210827232246.GA1668365@agluck-desk2.amr.corp.intel.com> In-Reply-To: <20210827232246.GA1668365@agluck-desk2.amr.corp.intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.5.1.3 x-originating-ip: [10.1.200.100] MIME-Version: 1.0 X-Source-IP: 134.134.136.65 X-ServerName: mga03.intel.com X-Proofpoint-SPF-Result: pass X-Proofpoint-SPF-Record: v=spf1 include:_spf.intel.com include:_spf.google.com -all X-Proofpoint-Virus-Version: vendor=nai engine=6300 definitions=10089 signatures=668682 X-Proofpoint-Spam-Details: rule=tap_notspam policy=tap score=0 malwarescore=0 bulkscore=0 clxscore=313 mlxlogscore=356 impostorscore=0 lowpriorityscore=0 phishscore=0 spamscore=0 suspectscore=0 mlxscore=0 adultscore=0 priorityscore=259 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108280012 domainage_hfrom=12940 X-Spam: Clean X-Proofpoint-Virus-Version: vendor=nai engine=6300 definitions=10089 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 bulkscore=0 spamscore=0 adultscore=0 malwarescore=0 mlxlogscore=379 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108280012 X-Mailman-Approved-At: Mon, 13 Sep 2021 07:28:45 -0700 Cc: cluster-devel , Jan Kara , Andreas Gruenbacher , Linux Kernel Mailing List , Christoph Hellwig , linux-fsdevel , Linus Torvalds , "ocfs2-devel@oss.oracle.com" Subject: Re: [Ocfs2-devel] [PATCH v7 05/19] iov_iter: Introduce fault_in_iov_iter_writeable X-BeenThere: ocfs2-devel@oss.oracle.com X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: ocfs2-devel-bounces@oss.oracle.com Errors-To: ocfs2-devel-bounces@oss.oracle.com X-Proofpoint-Virus-Version: vendor=nai engine=6300 definitions=10105 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 adultscore=0 suspectscore=0 phishscore=0 mlxlogscore=999 malwarescore=0 mlxscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109030001 definitions=main-2109130096 X-Proofpoint-ORIG-GUID: yHmhqop_vBTcOkcy0wM08fOPXfTTnOCe X-Proofpoint-GUID: yHmhqop_vBTcOkcy0wM08fOPXfTTnOCe > But if your kernel code loops and tries again without a return to user, > then your get another #MC. I've been trying to push this patch: https://lore.kernel.org/linux-edac/20210818002942.1607544-1-tony.luck@intel.com/ which turns the infinite loops of machine checks into a panic. -Tony _______________________________________________ Ocfs2-devel mailing list Ocfs2-devel@oss.oracle.com https://oss.oracle.com/mailman/listinfo/ocfs2-devel