Messages in this thread | | | Date | Mon, 4 Sep 2006 14:57:44 +0200 | From | Jörn Engel <> | Subject | Re: [PATCH 00/22][RFC] Unionfs: Stackable Namespace Unification Filesystem |
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On Sun, 3 September 2006 11:05:08 +0000, Pavel Machek wrote: > > > - Modifying a Unionfs branch directly, while the union is mounted, is > > currently unsupported. Any such change may cause Unionfs to oops and it > > can even result in data loss! > > I'm not sure if that is acceptable. Even root user should be unable to > oops the kernel using 'normal' actions.
Direct modification of branches is similar to direct modification of block devices underneith a mounted filesystem. While I agree that such a thing _should_ not oops the kernel, I'd bet that you can easily run a stresstest on a filesystem while randomly flipping bits in the block device and get just that.
There are bigger problems in unionfs to worry about.
Jörn
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