From: Brian Inglis <Brian.Inglis@Shaw.ca>
To: cygwin@cygwin.com
Cc: Martin Wege <martin.l.wege@gmail.com>
Subject: Re: How to fix |mkfifo()| failure if |pathname| is on NFS ? / was: Re: [EXTERNAL] Re: mkfifo: cannot set permissions of 'x.fifo': Not a directory
Date: Sat, 26 Aug 2023 13:16:23 -0600 [thread overview]
Message-ID: <a66337c1-8104-d71f-38e8-4b5457186bb8@Shaw.ca> (raw)
In-Reply-To: <CANH4o6PQ9ecyj6kS2DYgDWS=oX1YWKdhNcRaTg9d0SpZ7NOV2A@mail.gmail.com>
On 2023-08-26 11:40, Martin Wege via Cygwin wrote:
> On Sat, Aug 26, 2023 at 4:16 PM Corinna Vinschen via Cygwin
> <cygwin@cygwin.com> wrote:
>>
>> On Aug 26 13:26, Cedric Blancher via Cygwin wrote:
>>> On Fri, 25 Aug 2023 at 14:26, Corinna Vinschen via Cygwin
>>> <cygwin@cygwin.com> wrote:
>>>>
>>>> On Aug 25 14:18, Corinna Vinschen via Cygwin wrote:
>>>>> On Aug 23 01:05, Roland Mainz via Cygwin wrote:
>>>>>> 2. Check whether the filesystem for the fifos path is NFS
>>>>>> (cgywin.dll's |fs.fs_is_nfs()|), and then just refuse |mkfifo()| with
>>>>>> |ENOSYS| (not implemented)
>>>>>
>>>>> I like the idea.
>>>>
>>>> EPERM, btw. See https://man7.org/linux/man-pages/man2/mknod.2.html
>>>>
>>>
>>> I am vehemently opposed to that idea. That will IMHO not only be the
>>> wrong solution, it will break actual things like autoconf&friends on
>>> NFS - they create fifos for testing, but do not use them. If you just
>>> make this return EPERM, then you break stuff we have to rely on.
>>
>> https://cygwin.com/acronyms/#STC, please.#
>
> Real world failure for Cygwin on NFS:
>
> wget 'http://deb.debian.org/debian/pool/main/k/ksh93u+m/ksh93u+m_1.0.4.orig.tar.gz
> cd ksh-1.0.4
> $PWD/bin/package make
>
> This fails with Cygwin 3.4.8-1:
>
> cat buildlog.log
> package: update
> /cygdrive/z/arbeitdfn/windows_ksh/build_nfsv3/ksh-1.0.4/bin/execrate
> package: initialize the
> /cygdrive/z/arbeitdfn/windows_ksh/build_nfsv3/ksh-1.0.4/arch/cygwin.i386-64
> view
> package: update
> /cygdrive/z/arbeitdfn/windows_ksh/build_nfsv3/ksh-1.0.4/arch/cygwin.i386-64/lib/probe/C/make/probe
> package: update
> /cygdrive/z/arbeitdfn/windows_ksh/build_nfsv3/ksh-1.0.4/arch/cygwin.i386-64/bin/mamake
> package: make with mamake
> package: make output captured in
> /cygdrive/z/arbeitdfn/windows_ksh/build_nfsv3/ksh-1.0.4/arch/cygwin.i386-64/lib/package/gen/make.out
> mkfifo: cannot set permissions of
> '/cygdrive/z/arbeitdfn/windows_ksh/build_nfsv3/ksh-1.0.4/arch/cygwin.i386-64/lib/package/gen/make.out.fifo':
> No such file or directory
> package: make done at Fri Aug 26 19:24:26 CEST 2023 in
> /cygdrive/z/arbeitdfn/windows_ksh/build_nfsv3/ksh-1.0.4/arch/cygwin.i386-64
>
> If you need more examples just let me now, we have MUCH more of that...
No - the DLL developers need fewer examples, just *ONE* Simple Test Case, boiled
down to the essentials, with notes on preconditions, if you can not recreate the
required conditions in a program or script.
Alternatively, Cygwin strace output with notes from a failing program, or a gdb
script and log of the failing code with enough calling context and notes.
Please read the problem reporting guidelines linked at the bottom of all posts
and follow them.
--
Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut
-- Antoine de Saint-Exupéry
next prev parent reply other threads:[~2023-08-26 19:16 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-07 14:42 Martin Wege
2023-08-07 18:26 ` Brian Inglis
2023-08-07 19:14 ` Corinna Vinschen
2023-08-07 21:14 ` Martin Wege
2023-08-08 8:20 ` Corinna Vinschen
2023-08-08 19:38 ` Martin Wege
2023-08-09 8:01 ` Corinna Vinschen
2023-08-09 9:12 ` Martin Wege
2023-08-09 9:56 ` Corinna Vinschen
2023-08-10 12:49 ` Martin Wege
2023-08-18 4:02 ` Martin Wege
2023-08-18 8:34 ` Corinna Vinschen
2023-08-18 13:14 ` Martin Wege
2023-08-21 4:49 ` Cedric Blancher
2023-08-21 8:37 ` Corinna Vinschen
2023-08-22 14:52 ` [EXTERNAL] " Lavrentiev, Anton (NIH/NLM/NCBI) [C]
2023-08-22 23:05 ` How to fix |mkfifo()| failure if |pathname| is on NFS ? / was: " Roland Mainz
2023-08-24 16:45 ` Martin Wege
2023-08-25 4:25 ` Cedric Blancher
2023-08-26 17:58 ` Martin Wege
2023-08-25 12:18 ` Corinna Vinschen
2023-08-25 12:25 ` Corinna Vinschen
2023-08-26 11:26 ` Cedric Blancher
2023-08-26 14:15 ` Corinna Vinschen
2023-08-26 17:40 ` Martin Wege
2023-08-26 19:16 ` Brian Inglis [this message]
2023-08-25 15:14 ` Roland Mainz
2023-08-26 11:27 ` Cedric Blancher
2023-08-25 23:21 ` Lavrentiev, Anton (NIH/NLM/NCBI) [C]
2023-08-26 14:28 ` Corinna Vinschen
2023-08-26 14:39 ` Lavrentiev, Anton (NIH/NLM/NCBI) [C]
2023-08-26 17:44 ` Documenting Cygwin on NFS, no longer only exchange-medium! " Martin Wege
2023-08-26 19:16 ` Brian Inglis
2023-08-27 12:35 ` Corinna Vinschen
2023-08-28 5:35 ` Cedric Blancher
2023-08-28 10:02 ` Corinna Vinschen
2023-08-28 11:41 ` Joshuah Hurst
[not found] ` <14a692f6-7244-4a7e-a69b-d14521fb01e8@secure-endpoints.com>
2023-08-23 17:39 ` Lavrentiev, Anton (NIH/NLM/NCBI) [C]
2023-08-24 5:28 ` Cedric Blancher
2023-08-24 16:40 ` Martin Wege
2023-08-21 12:12 ` Martin Wege
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