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Subject: Re: write() on 64 bit platform sometimes returns 32bit -1 as error
 indicator
To: cygwin@cygwin.com
References: <8FBD9FC4F4994493AE1DA1DDBBAFB6B9@DAD325>
 <20200424144206.GF1654005@calimero.vinschen.de>
From: Brian Inglis <Brian.Inglis@SystematicSw.ab.ca>
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Organization: Systematic Software
Message-ID: <c7073209-4a88-71bd-1a3c-bc89f33b1ea3@SystematicSw.ab.ca>
Date: Fri, 24 Apr 2020 16:01:22 -0600
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On 2020-04-24 08:42, Corinna Vinschen wrote:
> This problem is due to a restriction in Windows introduced with Windows
> Vista.  In theory it gets explained at length in "Changes to the file
> system and to the storage stack to restrict direct disk access and
> direct volume access in Windows Vista and in Windows Server 2008" in the
> Help and Support Knowledge Base at http://support.microsoft.com/kb/942448.
> Unfortunately, this KB article is current unaccessible for some reason.

MS are blocking access to earlier unsupported (all Vista extended support ended
2017-04-11) system info:

[ Vista kb942448 🔎]

support.microsoft.com [links to https://support.microsoft.com/kb/942448]
We would like to show you a description here but the site won’t allow us.

Still readable via:

https://web.archive.org/web/20180217230150/https://support.microsoft.com/en-us/help/942448/changes-to-the-file-system-and-to-the-storage-stack-to-restrict-direct

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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