From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2155) id 7DFAA3857C45; Mon, 21 Aug 2023 08:38:03 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7DFAA3857C45 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com; s=default; t=1692607083; bh=w1nbP+sI+3Sx9QzGrdBxoFgbjPziScWYwtrsZoX+FPE=; h=Date:From:To:Subject:Reply-To:References:In-Reply-To:From; b=fV0Q3eOFQS1BBmnpv0ZCRUWxkYcFxBCV1dd7Sy7kpNy+l5dJ59y9jtTFlHmEZ1MHM bB3ZPxNQhJa/vd26Pzz0t9Xtox3cXWQkXPxz1Oe9JXI7rG5L+eMxVaARBpijDYovA1 nEyGC6qqbNNIu+2/lWnVGqy5Ce5VBOvmM/E1FGpo= Received: by calimero.vinschen.de (Postfix, from userid 500) id D3664A80BD1; Mon, 21 Aug 2023 10:37:53 +0200 (CEST) Date: Mon, 21 Aug 2023 10:37:53 +0200 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: mkfifo: cannot set permissions of 'x.fifo': Not a directory Message-ID: Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: List-Id: On Aug 21 06:49, Cedric Blancher via Cygwin wrote: > On Fri, 18 Aug 2023 at 10:35, Corinna Vinschen via Cygwin > wrote: > > > > On Aug 18 06:02, Martin Wege via Cygwin wrote: > > > On Mon, Aug 7, 2023 at 4:42 PM Martin Wege wrote: > > > > > > > > Hello, > > > > > > > > We get a weird mkfifo failure in Cygwin on NTFS: > > > > > > > > /usr/bin/mkfifo -m 600 x.fifo > > > > mkfifo: cannot set permissions of 'x.fifo': Not a directory > > > > > > > > Is there a known workaround? So far named fifos cannot be created somehow. > > > > > > This is fixed for NTFS, but still broken for Windows builtin NFS v3 client: > > > > It was actually never supposed to work on NFS. > > Are you sure? AT&T AST and ARB (rDNA data cruncher) certainly have > worked with Cygwin on NFS shares (Windows builtin, I think you call it > MSFT NFSv3) in the past in our institute. > > Tested with Cygwin 3.4.8: AST is not even building without such > support, and ARB throws nasty errors in the cluster run setup phase > II, because it cannot create the command fifo used for each cluster > node. > > > > > Cygwin FIFOs are > > created as symlinks of the type Windows shortcut with the R/O attribute > > set. Those are only generated on NTFS and FAT filesystems. NFS symlinks > > are generated using special magic. NFS doesn't support DOS attributes. > > So no Linux mkfifo support on NFS with Cygwin? You're talking about Linux FIFOs, which don't make *any* sense on Cygwin, and I'm talking about Cygwin FIFOs which don't make *any* sense on Linux or, FWIW, a remote NFS fileystem. So if you want Cygwin to be able to create FIFOs on a remote NFS, which Cygwin won't be able to use, great. I don't see any sense in that, but, as usual, https://cygwin.com/acronyms/#PTC Corinna