X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:to:subject:date:message-id:references
	:in-reply-to:content-type:content-id:content-transfer-encoding
	:mime-version; q=dns; s=default; b=t1RDaOv1cs4MVCHD0gPlBoBhIse8h
	Z67+WKJcoaPNAqy7gSMiF3iYIk0Z7XISJT8v4CJsWBCn91RPUM1GPUoGGleY7vDV
	E8GHgUYWZi17WOorFVKUQSWSO1IDz08eoN8UtqccbQGRyYjsrucsbeCgRnc265SF
	oXX4iQYHXw1F/g=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:to:subject:date:message-id:references
	:in-reply-to:content-type:content-id:content-transfer-encoding
	:mime-version; s=default; bh=tKbAo8EOMxqYTMe0Atz4D6/A0OY=; b=Ze/
	GvzKDhj18Ic+yNutnIAiveQ1qmufF6E391/NWIOChX76wfnWC0bYMN+W/XGqqjVR
	KhB9YUL0wn+y4l8QFAPMYMLOTAuM5B+I2XufC5YFeLbHCUfn4dXT8Bw4nnQW/YN+
	nnm797e/Kb5OIu6PtKov224QM6vGFdorNpldGQJM=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Authentication-Results:	sourceware.org; auth=none
X-Spam-SWARE-Status:	No, score=-2.8 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,SPF_HELO_PASS,SPF_PASS autolearn=ham version=3.3.1 spammy=
X-HELO:	NAM11-DM6-obe.outbound.protection.outlook.com
ARC-Seal:	i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=VSD43aVPI0aSo81oHUC8geG9k/j1dVYJSdhWkBfTB8lQsYNBmOvC6SQH8k7fDGfoV30nC4oZQoaPWrbP6qouoVO+sV9o4tXyziXVo5/X09dr/1OM2j+x9n5kxoVmrBrwTY5QXsXMg6cJhNpEn8P96uEkY3MdrlJ9nQEBbEYZOmjVUPb5tv1y5WLvr1yol6m94wP5ib0cpa5TJLCkr5EqTzVWbyqc+FHmaoAAsjQi6VIk7sKlqyrarGd9kn3zDHpzUh/mY2Iy6PtlCEKjuE0A+vcxSHhY3dP2jA6C+cbXi/1ZVy1YrVPDGyIB2N62/h+jcX1LLW48AqmyKFitBbu9Fw==
ARC-Message-Signature:	i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Yjsw7jOpu9YOZPkPwU1VvVnkcqYce+RQRScg/GrniRc=; b=Gvyfu7Um6gJZaSEAoBSF/aVEjxMYMlRztC6XmKk+HL/zFwgBPd1d2cNZt6RclT8ZRaslDc061pb2YzcbaLb/4g1VCNlIz9BLvxhKI5bMJDoy5PqeeG6Tn5H3xolswpNpuEXe2Hl5yjaiu8ssYTY5Z3UZHYAkM+WGGxu/WFy8zNK/afj9EPQvmePZJVTRHHlbrGFjmr5ItM+PQMgV2bDpPe1Rc9blWQCypZLOkouu0qVu4yv2wWhd+HyInKgEBZvxDE3rx83IjOIq3vIwXEwmmsFD1mil0JMh579Keew6whVnNahmGxG/erPIjuVfFNLKxrYIIKLrIABx0Yh0w4qN5A==
ARC-Authentication-Results:	i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=cornell.edu; dmarc=pass action=none header.from=cornell.edu; dkim=pass header.d=cornell.edu; arc=none
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=cornell.edu; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Yjsw7jOpu9YOZPkPwU1VvVnkcqYce+RQRScg/GrniRc=; b=SVyxDTeSRZmLPMu6KDqSWrF9PLVwNLzysjTdJHXfnvtd+pIYNzq7ykgXPX/wark1zhsy41JiaF8HNs5XO0j8wbyHr0FGgIr+72DwHBJ+1YYnFDM5OjbKquEgTxZbhQQtO+YB4CH97PT4eIoGPlQ2wmBriaIr84mYKT58k6RkuZ8=
From:	Ken Brown <kbrown AT cornell DOT edu>
To:	"cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject:	Re: 3.0.7(0.338/5/3): Possible reference to Developer's instances of dev files in deployed build
Date:	Thu, 5 Dec 2019 19:44:13 +0000
Message-ID:	<2c9fa755-ad12-262b-d175-c20eb8e0b1e5@cornell.edu>
References:	<20191204210222 DOT GA3578 AT shackleton DOT labs DOT net> <754a577d-dac1-16e0-56a7-8be8ab1d424c AT cornell DOT edu> <20191205091807 DOT GG3337 AT calimero DOT vinschen DOT de> <20191205125227 DOT GH3337 AT calimero DOT vinschen DOT de> <04da8ce9-0163-8381-644f-cc7c0f81a5f5 AT cornell DOT edu> <20191205191648 DOT GC5146 AT calimero DOT vinschen DOT de>
In-Reply-To:	<20191205191648.GC5146@calimero.vinschen.de>
user-agent:	Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1
authentication-results:	spf=none (sender IP is ) smtp.mailfrom=kbrown AT cornell DOT edu;
x-ms-oob-tlc-oobclassifiers:	OLM:8273;
received-spf:	None (protection.outlook.com: cornell.edu does not designate permitted sender hosts)
x-ms-exchange-senderadcheck:	1
x-ms-exchange-transport-forked:	True
MIME-Version:	1.0
X-MS-Exchange-CrossTenant-mailboxtype:	HOSTED
X-MS-Exchange-CrossTenant-userprincipalname:	zDwP6KDZyAhO3TmBk8Lc0yPc4JFQGzxUqIUuyAUieY/IZanQvt1Tfe7fcyGo9wel5aPBN5tUjmaOh0OjNCkfvA==
X-IsSubscribed:	yes
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id xB5Jit8l010120

On 12/5/2019 2:16 PM, Corinna Vinschen wrote:
> On Dec  5 16:10, Ken Brown wrote:
>> On 12/5/2019 7:52 AM, Corinna Vinschen wrote:
>>> On Dec  5 10:18, Corinna Vinschen wrote:
>>>> On Dec  4 21:41, Ken Brown wrote:
>>>>> The difference is that NtCreateFile doesn't fail with
>>>>> STATUS_OBJECT_NAME_NOT_FOUND in the other cases, so the code containing the
>>>>> assertion doesn't get run.
>>>>>
>>>>> BTW, I just tried the following on my system:
>>>>>
>>>>> $ ls z:\\
>>>>> ls: cannot access 'z:\': No such file or directory
>>>>>
>>>>> strace shows that NtCreateFile fails with STATUS_OBJECT_PATH_NOT_FOUND in this
>>>>> case, so again the code containing the assertion is not run.
>>>>>
>>>>> To be continued...
>>>>
>>>> So, maybe we could just check if ext_here - path > 2, i. e.
>>>>
>>>>       if (status == STATUS_OBJECT_NAME_NOT_FOUND && ext_here - path > 2)
>>>>
>>>> That excludes "X:" paths from this special handling for DOS-only drives.
>>>
>>> The only problem here is that I can't reproduce the assertion failure.
>>>
>>> I created a Samba share on a Linux machine, mounted it as drive Z:,
>>> and set the "always available offline" property of the drive.
>>>
>>> After syncing I accessed the drive, then I stopped Samba on the Linux
>>> server to switch the drive into offline mode.  Then I ran `ls -la
>>> /cygdrive/z'.  After a few secs I got the offline content cached on the
>>> local machine.  I also tried `ls -la /cygdrive/' and `cd /cygdrive; ls
>>> -la', but every time I got the expected output.  In the cases I tried
>>> to list /cygdrive itself I got the expected output, all drives except
>>> the z drive.
>>>
>>> I tried this with Cygwin 3.1.0-0.8.x86_64 on Windows 7 and Windows 10.
>>>
>>> So either there's something very special in Wilfed's setup, or I'm
>>> doing something wrong.  Which is it?
>>
>> How does your strace output compare to Wilfed's when you list /cygdrive?  Does
>> it show a failed attempt to list Z: with an error from NtCreateFile?
> 
> Not at all.  The strace doesn't show any attempt to open Z:.

Then I wonder what's different about Wilfed's setup that causes an attempt to 
open Z: when it's offline.

I'm grasping at straws, but could the difference be related to the fact that his 
drive Z: is not a Samba share?  Here's an excerpt from the mount output in one 
of his earlier emails (when Z: is online):

V: on /cygdrive/v type smbfs (binary,noacl,posix=0,user,noumount,auto)
W: on /cygdrive/w type smbfs (binary,noacl,posix=0,user,noumount,auto)
X: on /cygdrive/x type smbfs (binary,noacl,posix=0,user,noumount,auto)
Y: on /cygdrive/y type smbfs (binary,noacl,posix=0,user,noumount,auto)
Z: on /cygdrive/z type cifs (binary,noacl,posix=0,user,noumount,auto)
                        ^^^^

Ken

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

- Raw text -