Re: [uml-devel] [BUG] host fd leak when using hostfs

[BlaisorBlade <blaisorblade_spam@yahoo.it>]

Alle 19:42, sabato 12 giugno 2004, Sven Köhler ha scritto:

> >>So this should be bug in hostfs, so that hostfs doesn't close files on
> >>the host if they are closed inside the UML. Is there a fix for that
> >>already?
> >
> > Try the attached patch (for 2.6 only!), but please be very careful...
> > there could be subtle pitfall in the VFS making it have other problems.
> > However I've well understood what is the difference between 2.4 and 2.6
> > which makes the difference.


> > What is your UML version? I got the same thing with 2.6.4 patch adapted
> > onto 2.6.6 (the 2.6.6-02 distributed on my page).
>
> I think i used 2.6.6-um1 from the official download-page. I should have
> mentioned that in my first POST.

Well, I think that the patch should apply since I don't see any change to 
hostfs in the patches. I am convinced that HPPFS also suffers from this bug, 
since it too, on 2.4, used the force_delete() trick; however the matter is 
more interesting, since hppfs seem to NEVER close the host file. But I also 
think that it should become another hostfs module soon.

> > for i in `find /mnt/usr/bin`; do cat $i >/dev/null; done
>
> i think even "find /mnt/usr/bin" would habe been sufficient to reproduce
> the problem.

Just checked, and as I thought, the answer is no. The problem happens only 
when opening files.
-- 
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729




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