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Date:      Thu, 6 Dec 2018 14:27:56 +0800
From:      Erich Dollansky <>
Subject:   Re: can't copy files >= 1M to NFS share
Message-ID:  <>
In-Reply-To: <20181206020451.DE4E9103AC@mailuser.nyi.internal>
References:  <20181206020451.DE4E9103AC@mailuser.nyi.internal>

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this seems very much like a problem at the side of the Windows
machine. I do what you are doing all the while between FreeBSD

Except that there is the target full or quotas limit the receiving side.


On Wed, 5 Dec 2018 20:04:52 -0600 Carson Chittom
<> wrote:

> I've got an 11.2 system acting as my media server. I'm successfully
> exporting the directory which contains the media files via NFS, so
> that they're accessible on my workstation, which is running Windows
> 10 Pro. I can read the files fine from the Windows machine using the
> built-in Microsoft NFS client, and I can create directories, new
> files, and so forth from the Windows machine in the share.
> The issue is that I can't copy any files greater than or equal to 1M
> from the Windows system to the NFS share.  I confirmed this by using
> dd to create a file which is 1023k, which I was able to copy, and one
> which is 1024k, which I was not.  I get the same behavior whether I
> try to drag-and-drop into the NFS share, copy-and-paste, or using
> "copy" in the Windows Command Prompt.  The error that Windows
> immediately gives me is "Error 0x8007045D: The request could not be
> performed because of an I/O device error."  (And again, I *don't* get
> this error if the file is under 1M.)
> I've done some web searches, and there's a fair amount of that
> particular error code--but nothing that I saw seemed directly
> relevant (mostly about timeouts...but I'm getting the error
> immediately).  Maybe I'm just bad at Google.
> My /etc/exports is unexceptional, literally just the line:
> /usr/local/plexdata -mapall=plex
> Unfortunately, I don't have another system to hand to test mounting
> the share.  So at this point, I'm not sure where to poke. Is this
> something I can address from the FreeBSD side?  A limitation of the
> Windows NFS client?  Some unfortunate combination of them?
> If anybody can point me in the right direction, I'd be appreciative.
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