X-Recipient: archive-cygwin AT delorie DOT com
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0AC12385840B
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1709628442;
	bh=EWVZFL/CWqXnVY5IED7oa8DMF3uQ2K2+0yjPfudGwuk=;
	h=References:In-Reply-To:Date:Subject:To:List-Id:List-Unsubscribe:
	 List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:
	 From;
	b=dirR6DRLbHuBT/xtCwFdS5pP9v9uaQ0hLmCIqifiKiRHNPbWddVsBMdIxTx2hyuHS
	 EVL0zohDJpq5lqwW6VilWdb5bmfHCnwjP3ORMGn43QBhPGKFk4TI9kZsEMPvFrwTNu
	 S4IMsP3bzC/C876t5DcwMRpVlJGxCIbGQxgNOtBs=
X-Original-To: cygwin AT cygwin DOT com
Delivered-To: cygwin AT cygwin DOT com
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 2105F3858288
ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 2105F3858288
ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1709628413; cv=none;
 b=mRokZF1K7wz1z8a2w54swL2v80tKc6VslslD9vut9n7XOCk6Z4kBTd6hw9j+KBmB0GWIiW7AISQJz4Gh3W+xZXHFaZw4rzk2hsToMUD7UdGRg5ekJf6AOmU0rqaKKRqtN44MXU77d3ETJrHAxBhxvPc3ZIOaOgDmiCob3yNlvKo=
ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key;
 t=1709628413; c=relaxed/simple;
 bh=b1Xi6EmoBepkcoqClJIWtR0LPp06oCyMyyF+891gt8M=;
 h=DKIM-Signature:MIME-Version:From:Date:Message-ID:Subject:To;
 b=mb72OX8t3MZLPxtMLReTqyRRmY6vD47i+tjBxOO/mTtAvml4RWIHZTNalvZojoZMp4EehIbjHYJ7REFi7iDwwX69KRD41oATIA3OGQyETSczJNPhtlmmWDgeV8QXAJqWCHMkaHaREC5oBvZEf7FiQZzogaktvG8aAeMmfOHgqZk=
ARC-Authentication-Results: i=1; server2.sourceware.org
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20230601; t=1709628409; x=1710233209;
 h=to:subject:message-id:date:from:in-reply-to:references:mime-version
 :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to;
 bh=mDYmUm19+Kz6Y7kXGtk6b76om+rr5NxZ2wy6q0Gl+TY=;
 b=wuDifZaOJnP3mpFBmBiz9ng1NPJ+RCqIxx6uqN4sKgssFt6jwdAIfD2ijr8tqp0/KH
 q0DnsnovNI2Lj4D8pr+YNs+zL5f5xChiLG8ZpYuwxvVHPaO0a+WE3pZhX+rHJcf+GmAW
 /Ce/WQsapC95nYmNQpi/n5Wb1jSsTgHV/xOU4EC59v9GZl5M1H9Yy8yYeuh7hzn2ly4G
 v4DatgvSedtYtYtMK3pC9p0+s4K9AkVX8/5HIs6iWkwY+EoNvS0JtZjmtc4gxApOw3XV
 hRrf9XgMg1UYuR4tyblwlSl603dlvTwncjHTzhT6mgv5Q3i3Wqj3yrcNd8ZbOiKVZyil
 xOvQ==
X-Gm-Message-State: AOJu0YwaMuYLJOBGEzh1NfcfcjfHT+yQtRnP+tHvvy7i0FtZTUhcgL+k
 9qEbgVEGnr1LyLAu9tHUfkOIlY0zbBnc8rWAzpgjwdsOB1g7esYdkBj/mOIvb6cKfNx/EdpNhqJ
 co4cB1lo2LxWvbq+n/H+8ikLUrw1nJ3IO
X-Google-Smtp-Source: AGHT+IF7y5M+qmuNb/QPNcDzUJr7hWCy3/pqvOln+WLaqRm42idM6C5z0c8d/wDk990pgyFxVi1aq/CyffwjjB5h86U=
X-Received: by 2002:a50:ef0d:0:b0:567:610:c862 with SMTP id
 m13-20020a50ef0d000000b005670610c862mr6381242eds.31.1709628409189; Tue, 05
 Mar 2024 00:46:49 -0800 (PST)
MIME-Version: 1.0
References: <CALXu0UeXUwCjY+WVwXA2X68XGEcm63SPPOPQtO-ZiDKFqXYW5w AT mail DOT gmail DOT com>
 <e01112b1-a8c9-4aa9-a5a2-5827187106dd AT maxrnd DOT com>
 <1de1f9f9-f8ee-45bf-9c63-fd151b6714f7 AT maxrnd DOT com>
In-Reply-To: <1de1f9f9-f8ee-45bf-9c63-fd151b6714f7@maxrnd.com>
Date: Tue, 5 Mar 2024 09:46:12 +0100
Message-ID: <CALXu0UdUXGPsbuwBhyT-_W7GXdsNw7=VYQvWS15d3fvJfyj7qg@mail.gmail.com>
Subject: Re: /usr/bin/fallocate -v -d -l 2 myfile takes forever
To: cygwin AT cygwin DOT com
X-Spam-Status: No, score=-0.6 required=5.0 tests=BAYES_00, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,
 SPF_HELO_NONE, SPF_PASS, TXREP,
 T_SCC_BODY_TEXT_LINE autolearn=ham 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 AT cygwin DOT com
X-Mailman-Version: 2.1.30
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From: Cedric Blancher via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Cedric Blancher <cedric DOT blancher AT gmail DOT com>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Sender: "Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>

On Mon, 29 Jan 2024 at 10:46, Mark Geisert via Cygwin <cygwin AT cygwin DOT com> wrote:
>
> On 1/28/2024 11:56 PM, Mark Geisert via Cygwin wrote:
> > On 1/28/2024 10:44 PM, Cedric Blancher via Cygwin wrote:
> >> Good morning!
> >>
> >> rm -f myfile
> >> touch myfile
> >> /usr/bin/fallocate -v -d -l myfile takes forever with latest Cygwin 3.5
> >                               ^ length goes here, before filename
> >
> > I believe you need to
> >      chattr +S myfile
> > after the 'touch' to make the file sparsifiable.
> >
> > Also, I'm unsure if '-d' makes sense when initially allocating a sparse
> > file.  If I leave it off, fallocate does the right thing.
> >
> > I'm separately investigating the 'takes forever' report.
>
> It's taking forever because it's in an infinite loop looking for data
> followed by a hole, which is not present in a new file being created.
> This is due to the '-d' option being specified.  fallocate ought to
> diagnose this condition rather than looping forever, but here we are.
>
> It's possible we have an old fallocate from an old util-linux package.
> I'll try to investigate this further when I have time.
>

Any update on this issue?

Ced
-- 
Cedric Blancher <cedric DOT blancher AT gmail DOT com>
[https://plus.google.com/u/0/+CedricBlancher/]
Institute Pasteur

-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple