DMARC-Filter:	OpenDMARC Filter v1.4.2 delorie.com 612G51fi3228132
Authentication-Results:	delorie.com; dmarc=pass (p=none dis=none) header.from=cygwin.com
Authentication-Results:	delorie.com; spf=pass smtp.mailfrom=cygwin.com
DKIM-Filter:	OpenDKIM Filter v2.11.0 delorie.com 612G51fi3228132
Authentication-Results:	delorie.com;
	dkim=pass (1024-bit key, unprotected) header.d=cygwin.com header.i=@cygwin.com header.a=rsa-sha256 header.s=default header.b=aPXYE6WG
X-Recipient:	archive-cygwin AT delorie DOT com
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org BE8ED4BA903E
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1770048300;
	bh=gkv/EQk3PWZ+3otsDRKw9RVtfTbDJAHYFcKWXH/DeSk=;
	h=Date:To:Subject:References:In-Reply-To:List-Id:List-Unsubscribe:
	List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc:
	From;
	b=aPXYE6WGpSxx+cNahjCjNvL6RpW+nEOuq9S0CUXVVFOtAObQjALePjpB8n1Gr/ivT
	5jQ+nRq/fZSCVGTTHcu7OGLoF91qJ/Wex33lsCMupDQ3c3iS6xKgaPjWx3ngwXmZGW
	H4UBQlNsVbyYF4kAZn7jJMUZ/e3E9CcnrgofiZvA=
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org 2F2194BA9035
Date:	Mon, 2 Feb 2026 17:04:42 +0100
To:	cygwin AT cygwin DOT com
Subject:	Re: git fsck complains about error:
	refs/tags/.cyg000000000559e25517156b51cf219f51/libgcj-2.95.0: badRefName:
	invalid refname format?!
Message-ID:	<aYDLGpPYXd0WDSZu@calimero.vinschen.de>
Mail-Followup-To:	cygwin AT cygwin DOT com
References:	<CAAvCNcDzoq3skCwRuYa2LLTTA3xsnK+eDLB8_SegJZinatMUSg AT mail DOT gmail DOT com>
	<fc1bdd5b-7732-4430-a130-70ef662acd36 AT dronecode DOT org DOT uk>
	<CAAvCNcAAoJeX470QBp9x+A=zSupb_5TpVDeqnbsJS9dtd-oXQg AT mail DOT gmail DOT com>
	<aYCpYYE1scT7bdaA AT calimero DOT vinschen DOT de>
	<CAAvCNcASN+pduqG1LT6S1nZhd02-7vFdj5WNNpgkDbrMgV2ZxQ AT mail DOT gmail DOT com>
MIME-Version:	1.0
In-Reply-To:	<CAAvCNcASN+pduqG1LT6S1nZhd02-7vFdj5WNNpgkDbrMgV2ZxQ@mail.gmail.com>
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-Unsubscribe:	<https://cygwin.com/mailman/options/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
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:	Corinna Vinschen via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	cygwin AT cygwin DOT com
Cc:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
Errors-To:	cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com
Sender:	"Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>

On Feb  2 14:47, Dan Shelton via Cygwin wrote:
> On Mon, 2 Feb 2026 at 14:40, Corinna Vinschen via Cygwin
> <cygwin AT cygwin DOT com> wrote:
> >
> > On Feb  2 13:24, Dan Shelton via Cygwin wrote:
> > > I'm not sure whether the Cygwin code is correct. I did a peek with a
> > > kernel debugger, and I see that FILE_RENAME_INFORMATION.RootDirectory
> > > is always NULL if a file gets renamed to .cyg000000000xxxx. But if I
> > > try that with NTFS or SMB, the NtSetInformationFile() to set
> > > FileRenameInformation always fails.
> >
> > Your testcase is incorrect, unfortunately.
> >
> > >     fri->FileNameLength = (wcslen(dstfile)+1)*sizeof(wchar_t);
> >
> > For NT file paths, never count the trailing \0 to the length:
> >
> >       fri->FileNameLength = wcslen(dstfile) * sizeof (WCHAR);
> >
> > With that, your testcase works fine for me.
> >
> > On which filesystem did you see the problem?
> 
> Windows NFSv3 client (the builtin one, not the newer NFSv4.1 one).

The files in question are actually files which got renamed while
in use.  I don't know another way to implement removing in-use files
on remote file systems not supporting delete POSIX semantics.  If
somebody has a brilliant idea, https://cygwin.com/acronyms/#PTC.


Corinna

-- 
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

- Raw text -