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Received: from 91-160-117-201.subs.proxad.net ([91.160.117.201] helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oyxDH-0003c2-VT; Sat, 26 Nov 2022 10:35:32 -0500 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <87r0yu1ozc.fsf@inria.fr> <20221126115338.fvkutuq3cce5ed7r@begin> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: Sextidi 6 Frimaire an 231 de la =?UTF-8?Q?R=C3=A9volution, ?= jour de la =?UTF-8?Q?M=C3=A2che?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Sat, 26 Nov 2022 16:35:29 +0100 In-Reply-To: <20221126115338.fvkutuq3cce5ed7r@begin> (Samuel Thibault's message of "Sat, 26 Nov 2022 12:53:38 +0100") Message-ID: <87fse57mpq.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: bug-guix-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; 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aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gnu.org header.s=fencepost-gnu-org header.b=ZM6rxLnx; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -3.87 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gnu.org header.s=fencepost-gnu-org header.b=ZM6rxLnx; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 6C7092EBA3 X-Spam-Score: -3.87 X-Migadu-Scanner: scn1.migadu.com X-TUID: Sso4Ozh1Qmjd Hi, Samuel Thibault skribis: > It seems that replying on the web interface didn't work, so replying > again here by mail. Weird. > Ludovic Court=C3=A8s, le mer. 26 oct. 2022 19:20:07 +0200, a ecrit: >> ludo@childhurd ~$ mkfifo fifo >> ludo@childhurd ~$ ls -l fifo >> prw-r--r-- 1 ludo users 0 Oct 21 07:08 fifo >> ludo@childhurd ~$ df ./fifo >> df: Warning: cannot read table of mounted file systems: No such file or = directory >> ^C > > Using coreutils 9.1, I am not getting the issue any more: > > =E2=82=AC mkfifo foo > =E2=82=AC ls -l foo > prw-r--r-- 1 samy samy 0 Nov 26 11:47 foo > =E2=82=AC df ./foo > Filesystem Size Used Avail Use% Mounted on > - 20G 18G 1.8G 91% / Oh nice. This may be a side effect of Coreutils commit a3c04f8da14f0fe2a0561bf5562032b8ce5dafa9 (which made it in 9.0), which opens the file with O_NONBLOCK. >> Maybe /hurd/fifo needs to implement =E2=80=98trivfs_check_open_hook=E2= =80=99 to avoid >> actually opening? > > I don't think it will change the behavior? trivfs_S_dir_lookup will call > trivfs_open after trivfs_check_open_hook anyway. Indeed, that was misguided, sorry for the confusion. Ludo=E2=80=99.