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Sat, 1 Sep 2018 00:35:49 +0000 From: Rick Macklem To: =?iso-8859-1?Q?Gerrit_K=FChn?= CC: Alan Somers , FreeBSD Net Subject: Re: Fw: 100.chksetuid handging on nfs mounts Thread-Topic: Fw: 100.chksetuid handging on nfs mounts Thread-Index: AQHUQPQEXK3OkyK1V066YM56TmswgaTZtb8YgAAJFICAANWPuw== Date: Sat, 1 Sep 2018 00:35:49 +0000 Message-ID: References: <20171215143456.278a3dc31bb09c9217e83927@aei.mpg.de> <30015_1513349242_5A33E07A_30015_587_1_20171215154659.c8a7f21317a06ab64e480955@aei.mpg.de> <20180830090941.0b92d2012406299b19a68be2@aei.mpg.de> <20180830154404.5da83b6ff0481b17cd6d044e@aei.mpg.de> <20180831082933.085ee4f3c7a006549d0974db@aei.mpg.de> , <20180831134717.80da25fa0b5f4b9280e59921@aei.mpg.de> In-Reply-To: <20180831134717.80da25fa0b5f4b9280e59921@aei.mpg.de> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=rmacklem@uoguelph.ca; x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; 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DIR:OUT; SFP:1101; SCL:1; SRVR:YTOPR0101MB2265; H:YTOPR0101MB1820.CANPRD01.PROD.OUTLOOK.COM; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: uoguelph.ca does not designate permitted sender hosts) x-microsoft-antispam-message-info: TqvqaW+k7N6yFGzvkH7cPkyG2AcV3RpZM/9DN7VkqWodpMj2dmSuofwJh84PAvunLOjmqMsHIxgnNjh2Rf61ysGlk6/xckV7doSYPG3xGLOEdBWg0F71K/5umQb7+7ngrGTMqqKrvlJaC7VSr8wwJu+uovBTnE4ciuIAC2bbXu2oa6EQ9O/ub6sUFDUeYbjOgFA5e+EPQhJWrD2Src9EnLoZj3iuiwfnbHR3xfedXm0KmyVvTnfAxCehou/0gXWTJUVFTmei9ssBjB0DW4YNNa9v/QmoNk+/tJ4y3iyXtJs50bSkQYtYoGy1y5Fmf6HBhydlHc91hw9BAMOXkHqKziMjZoa8IR2VMsf6mgaXg0U= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: uoguelph.ca X-MS-Exchange-CrossTenant-Network-Message-Id: 7854f8ec-4416-401a-b83a-08d60fa2dd8c X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Sep 2018 00:35:49.4671 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: be62a12b-2cad-49a1-a5fa-85f4f3156a7d X-MS-Exchange-Transport-CrossTenantHeadersStamped: YTOPR0101MB2265 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 Sep 2018 00:35:52 -0000 Gerrit K=FChn wrote: [stuff snipped] >My impression was that the find commandline is crafted in a way that >should prevent it from touching any filesystems mounted into the root >tree. Maybe I am mistaken here, then hanging on the unavailable nfs mount >is certainly expected (although not nice ;-) behaviour. Without looking at the find sources, I'd guess that it does a stat(2) on a = directory and then checks the st_dev to see if it had changed. This will hang for the= mount point directory if it can't do the Getattr RPC. rick