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X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR04MB0372 X-Spam-Status: No, score=-3.2 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, JMQ_SPF_NEUTRAL, NICE_REPLY_A, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Jul 2022 17:04:00 -0000 On 7/1/2022 1:46 AM, Lavrentiev, Anton (NIH/NLM/NCBI) [C] via Cygwin wrote: > Now, if I run this code in my Cygwin home directory (and any directory that I create using "mkdir..." under it), > I am getting the expected results: > > $ ~/sun > fstat mode = 140666 > stat mode = 140666 > > $ ls -l .socket > srw-rw-rw-+ 1 ANTON None 0 Jul 1 01:19 .socket= > > However, if I run it elsewhere (different drive "cd /cygdrive/g/cygwin" -- it's NOT where Cygwin is installed, > just a folder that keeps files for Cygwin development, the installation is on C:\Cygwin64), I cannot predict > the results. What's weird is that fstat and stat report different file modes. > > $ pwd > /cygdrive/g/cygwin > $ ~/sun > fstat mode = 140666 > stat mode = 140666 > $ ls -l .socket > srw-rw-rw-+ 1 ANTON None 0 Jul 1 01:24 .socket= > > So all's good here, BUT: > > $ mkdir subdir > $ cd subdir > $ pwd > /cygdrive/g/cygwin/subdir > $ ~/sun > fstat mode = 140666 > stat mode = 140664 > $ ls -l .socket > srw-rw-r--+ 1 ANTON None 0 Jul 1 01:25 .socket= > > Note that fstat lied! > > For some reason getfacl returns "Not supported", so I could not investigate with that Can you give us more information about where that error is coming from? Are you able to run getfacl under gdb and show us a backtrace from that point? I often find it helpful to first run the program under strace in order to locate the source of the error, so I know where to set a breakpoint in gdb. And what can you tell us about the drive /cygdrive/g? The failure of getfacl suggests that Cygwin thinks the drive doesn't support ACLs, in which case it might just be faking permissions (lying). Ken