Received-SPF: pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Chuck Lever III <chuck.lever@oracle.com>
To:     Linux NFS Mailing List <linux-nfs@vger.kernel.org>
CC:     "fstests@vger.kernel.org" <fstests@vger.kernel.org>
Subject: generic/650 makes v6.0-rc client unusable
Thread-Topic: generic/650 makes v6.0-rc client unusable
Thread-Index: AQHYv8UPTDI1uHGr8UOM/bcjO7bwcQ==
Date:   Sat, 3 Sep 2022 18:43:29 +0000
Message-ID: <3E21DFEA-8DF7-484B-8122-D578BFF7F9E0@oracle.com>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?us-ascii?Q?fg80eFQiw5OynZZ70e2iO3U5Y6hiIjvRVU0g8n1VQuko1VSw19pDQaqo30DI?=
 =?us-ascii?Q?Kg7J8QLFdi5j9+suexra10RT4QRdNlUctKHTobq5ZeAgTsN0PUM8yzOicku1?=
 =?us-ascii?Q?Ah5xv/7JWJhBXbQ3Tj+zWZV11c4y+Y57uuf+XlwP2IDLRV0AprGIMLA58Gwj?=
 =?us-ascii?Q?6/ELiV7AFOBCmue8QfcHiTWbKHnCuG77YVrsIoikrP4JT88B6UdhJlPqfCnV?=
 =?us-ascii?Q?PYtszTyOrxz0f0a8etEKVBHXpIJNeIlU2pKMi7CL/H5nhTlCFaNShOoOwQQ6?=
 =?us-ascii?Q?n00NgaFUUfW4L2Gf/Z8AKZIyna60FRgjplbxMhiqqa2FYb8NVZwG+G0KKjfE?=
 =?us-ascii?Q?noc5/VoYEQNEuv55AD5sdiRA/PSjcr113GAYLdxW2DBAzmCHPe1Ey4lB5MhY?=
 =?us-ascii?Q?Hzu53iZuwYEzGwzTU8/kKdCUoYQjgTueOsmY9WnXzXOfCkHmIpel/kV3ltit?=
 =?us-ascii?Q?kLL2QJSchCshjDAwbWN3Xry3SvJe/XJmVr7mnCV66uR0YvqjuPDKQQO57XCL?=
 =?us-ascii?Q?lJMp2t+sNcQAukwfSUWtT22yxZW9vjiNW3cLkNHCPCv/xh/SMngpokMDr5q9?=
 =?us-ascii?Q?VUGWHRJri07zYBv2y1WkA7bGQVBQq7FsBIyR8IIwgrgjs5efCxgZgUksv+Bx?=
 =?us-ascii?Q?fLK7t0maPQN8Zty8mxnXfnf/XZQ3xe8ex9WESU/aqQoOv0pGNgQIqVqaSL5L?=
 =?us-ascii?Q?/4gVIOasP/GholP7ttoe3GLNPFqtoBmkdvtagS6SlHMHVkmu6xzn6aAuixcq?=
 =?us-ascii?Q?OYJQeWN6MC1GIJ9T2cg8G92Dfk/6CMhB4MXQ3I70rSOYYSXc3xlZeSmelGEH?=
 =?us-ascii?Q?zxzEaZ1nQ5SIrY5hA7VY++aV2LaGjUuRPQhnP97wUwzCWR/OHmXmXHG0u6hQ?=
 =?us-ascii?Q?2P4rmJQ4dxNwQ0kSKyvUWmNA/UAK9ziXL2V9BqZN7xFWJtxwK0Ep7U43w17B?=
 =?us-ascii?Q?wS9LiZ70LcxWoxpFsMzOzYaCN0vLbfISuhH1/H9ey0Ua88tbm/aJibcxojp0?=
 =?us-ascii?Q?3NXjt7NaTfB3WhQg7S9GKcnyfUch52mBpb82gUbWvER64KSMAkeLL5lqPNGH?=
 =?us-ascii?Q?oIHe4DcKZKLOYuUtmCxBW+t6fa4ppGqwOii5ci6+NoO7PXuRKtplhndoH1Je?=
 =?us-ascii?Q?DUyKLrg7jO60SSOS0e6c7cCr2elujHrS1DzYt16V+wOKv4Gs+KQomoKQTuFB?=
 =?us-ascii?Q?ns8COuMao0sWeIkv9i9SwG83Isx5WtM1Zri1mYdtBBWbDdDU0oDQR+cc6S8y?=
 =?us-ascii?Q?kwC+yhdbX8zIHDsDKd6EsZTwOslaNKQCV48giYUVMMvDw8M+03YuDUd+YoOm?=
 =?us-ascii?Q?lApz5yUkw7WresOgEewnX6gl1O1Vac4yNLWqeiVXwtc1ekrijcNrTOiAtn8I?=
 =?us-ascii?Q?gwUfb25j0rZ2zdxIrnFYGySvdJ1TqZUnaL0u8T4iez/iySiFICvDzt/eP12w?=
 =?us-ascii?Q?99Eg1ZG2YFsURLxQErL7xJBioRdgOfvn1MChHZ+/V4ihXNSjHg6/JLoIwJ6k?=
 =?us-ascii?Q?XsQtcSe7l3gEAuRi+EMVTCTZn+wsOld0pWGRai0BW9Uu4lIYGGM3Xg1HGoy8?=
 =?us-ascii?Q?ghGNEaHCIW3+W+oDQ9B8K/30jDDwE6OpGawrsGHw7LW7z4SAiqOvwvQEYUlv?=
 =?us-ascii?Q?Rg=3D=3D?=
Content-Type: text/plain; charset="us-ascii"
Content-ID: <87258A8D4BCC7542B80554194FD1F15E@namprd10.prod.outlook.com>
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-OriginatorOrg: oracle.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: BN0PR10MB5128.namprd10.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 078fbb4c-6b7a-4bf0-4a08-08da8ddc3193
X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Sep 2022 18:43:29.0247
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: +AADLGe11Xb130ebksP+Fe2ppuB51O/z+avzLZP2pkuRcvS74klgQsFylTxRVYMXuVE1sbpTF4iewhpBqf3UHg==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR10MB5005
X-Proofpoint-Virus-Version: vendor=baseguard
 engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.517,FMLib:17.11.122.1
 definitions=2022-09-03_08,2022-08-31_03,2022-06-22_01
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 spamscore=0
 mlxlogscore=999 mlxscore=0 bulkscore=0 malwarescore=0 suspectscore=0
 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2207270000
 definitions=main-2209030096
X-Proofpoint-GUID: BFPQ6UK8vZtwEGxPRPgNwcvD08diSBC6
X-Proofpoint-ORIG-GUID: BFPQ6UK8vZtwEGxPRPgNwcvD08diSBC6
X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW,
        RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE
        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: <linux-nfs.vger.kernel.org>
X-Mailing-List: linux-nfs@vger.kernel.org

While investigating some of the other issues that have been
reported lately, I've found that my v6.0-rc3 NFS/TCP client
goes off the rails often (but not always) during generic/650.

This is the test that runs a workload while offlining and
onlining CPUs. My test client has 12 physical cores.

The test appears to start normally, but then after a bit
the NFS server workload drops to zero and the NFS mount
disappears. I can't run programs (sudo, for example) on
the client. Can't log in, even on the console. The console
has a constant stream of "can't rotate log: Input/Output
error" type messages.

I haven't looked further into this yet. Actually I'm not
quite sure where to start looking.

I recently switched this client from a local /home to an
NFS-mounted one, and that's where the xfstests are built
and run from, fwiw.


--
Chuck Lever