linux-kernel - Re: [regression] __d_unalias() should refuse to move mountpoints

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Message-ID: <20120919092039.GA4387@galadriel.home.lxtec.de>
Date:	Wed, 19 Sep 2012 11:20:39 +0200
From:	Elimar Riesebieter <riesebie@...ec.de>
To:	Maarten Lankhorst <maarten.lankhorst@...onical.com>
Cc:	al viro <viro@...iv.linux.org.uk>, linux-fsdevel@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [regression] __d_unalias() should refuse to move mountpoints

* Maarten Lankhorst <maarten.lankhorst@...onical.com> [2012-09-11 18:39 +0200]:

> Hey Al,
> 
> Your vfs commit ee3efa91e240f513898050ef305a49a653c8ed90 caused my laptop
> with a nfs root filesystem to stop working.
> 
> My testcase is simply booting through netboot with / and ~/nfs as separate
> nfs filesystems, then doing 'ls ~/nfs' followed by 'ls ~' in a gnome-terminal
> window, then I get:
> 
> ls: cannot access nfs: Device or resource busy
> 
> Similar things seem to happen with ls /, /dev /proc and /sys will no longer work.
> 
> Reverting this patch seems to make things work again.

I have to revert the commit as well to get my mounts working.
Without I have the same probs as described here [0].

There is no fix in 3.6-rc6. There should be one before final
release?

Thanks
Elimar

[0] http://www.spinics.net/lists/linux-nfs/msg32378.html

-- 
  The path to source is always uphill!
                                -unknown-

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