Re: [vserver] compile problems in combination with aufs

From: Oliver Welter <mail_at_oliwel.de>
Date: Fri 04 Apr 2014 - 14:23:29 BST
Message-ID: <533EB251.2050701@oliwel.de>

Bump - hmm nobody here with a hint on that?

Am 24.03.2014 11:11, schrieb Oliver Welter:
> Hello,
>
> I am using the linux vserver patch in combination with the aufs overlay
> filesystem which did its job pretty nice the last years.
> I tried to update to 3.4.83 yesterday and ran into a compilation error -
> it is inside the aufs code but the maintainer told me that the reason is
> a wrong typecast inside the vserver patch.
>
> As I am not that kernel guru, I hope somebody here can help me out. Here
> is the replied post from the aufs mailing list. The source of the aufs
> code is available at https://github.com/sfjro/aufs3-linux/tree/aufs3.4,
> my patched source is available at
> https://github.com/oliwel/aufs3-linux/tree/vserver
>
> --snipp--
>
> Oliver Welter:
>> fs/aufs/cpup.c: In function 'au_cpup_attr_flags':
>> fs/aufs/cpup.c:32:2: error: size of unnamed array is negative
> :::
>> The source is made of:
>> * latest HEAD of aufs3.4 branch (c1ecf4f)
>> * merged with kernel archive linux-3.4.y (0c4f5371)
>> * vserver patch from
>> http://www.linux-vserver.org/Welcome_to_Linux-VServer.org
>> (http://vserver.13thfloor.at/Experimental/patch-3.4.83-vs2.3.3.9.diff)
>
> The vserver patch converts "unsigned int i_flags" to unsigned short, and
> the line BUILD_BUG_ON(sizeof(iflags) != sizeof(dst->i_flags)) (which
> carefully check the consistency between linux kernel and aufs source
> files) detects it expectedly.
>
> In order to support vserver, I am afraid you need to solve these
> issues.
> - convert a variable in aufs which corresponds to "unsigned int i_flags"
> into unsigned short.
> - support the newly added flag vlaues, S_IXUNLINK, etc.
> - support the newly added variable, i_vflags, i_mdev, etc.
> - there may exist more issues.
>
> --snapp--
>
> best regards
>
> Oliver
>
>

-- 
Protect your environment -  close windows and adopt a penguin!

Received on Fri Apr 4 14:23:34 2014
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