Date: Fri, 26 Feb 1999 21:16:41 -0800 (PST) From: John Polstra <jdp@polstra.com> To: dot@dotat.at Cc: current@freebsd.org Subject: Re: mount -o union broken recently? Message-ID: <199902270516.VAA05738@vashon.polstra.com> In-Reply-To: <E10GZo8-0003Ko-00@fanf.noc.demon.net> References: <E10GNQx-0002lU-00@fanf.noc.demon.net>
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In article <E10GZo8-0003Ko-00@fanf.noc.demon.net>,
Tony Finch <dot@dotat.at> wrote:
> Luigi Rizzo <luigi@labinfo.iet.unipi.it> wrote:
> >
> >i just experienced the above today while trying diskless, and while
> >ls only seems to return the entries for the topmost directory, files
> >are accessible if you know the name. no idea if this is of any help.
>
> This is exactly the right pointer, thanks! The problem appears to be
> the change between revs 1.108 and 1.109 of sys/kern/vfs_syscalls.c. A
> couple of (very similar) blocks of code related to `mount -o union`
> seem to have been mixed up with some code related to `mount -t union`
> and therefore removed. It's a shame that the two things get confused
> so much. I originally missed vfs_syscalls.c because a `find
> /usr/src/sys | xargs grep MNT_UNION` on 3.1 didn't show it. Replacing
> the errant code fixes the problem. Here's a patch against 1.112.2.1.
Great sleuthing, guys!
John
--
John Polstra jdp@polstra.com
John D. Polstra & Co., Inc. Seattle, Washington USA
"Nobody ever went broke underestimating the taste of the American public."
-- H. L. Mencken
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