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From: Robert Watson <rwatson@FreeBSD.org>
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To: Diomidis Spinellis <dds@aueb.gr>
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Cc: svn-src-stable-7@FreeBSD.ORG, svn-src-stable@FreeBSD.ORG,
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	Diomidis Spinellis <dds@FreeBSD.ORG>
Subject: Re: svn commit: r188069 - stable/7/bin/cp
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On Tue, 3 Feb 2009, Diomidis Spinellis wrote:

> Robert Watson wrote:
>> On Tue, 3 Feb 2009, Diomidis Spinellis wrote:
>> 
>>> Author: dds Date: Tue Feb 3 13:07:34 2009 New Revision: 188069 URL: 
>>> http://svn.freebsd.org/changeset/base/188069
>>> 
>>> Log:
>>>  MFC r184342 from head to stable/7
>>>
>>>  Add fallback when mmap fails on regular files.  Some filesystems,
>>>  like smbnetfs, do not support mmap.
>> 
>> You mean smbfs?
>
> The original report of the problem 
> <http://lists.freebsd.org/pipermail/freebsd-current/2008-May/085866.html> 
> concerned SMBNetFS - a user-space implementation of SMB 
> <http://sourceforge.net/projects/smbnetfs>.

Ah, OK.  Be aware that it's not possible to execve(2) from a file system that 
doesn't support memory mapping...

Robert N M Watson
Computer Laboratory
University of Cambridge