linux-ext4 - Re: Regression with ext4 in kernel 2.6.39-rc7? (Was: testing ext4 master branch)

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Date:	Fri, 13 May 2011 20:25:02 +0300
From:	Amir Goldstein <amir73il@...il.com>
To:	Theodore Tso <tytso@....edu>
Cc:	Eric Sandeen <sandeen@...hat.com>,
	Ext4 Developers List <linux-ext4@...r.kernel.org>,
	Jan Kara <jack@...e.cz>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: Regression with ext4 in kernel 2.6.39-rc7? (Was: testing ext4
 master branch)

On Fri, May 13, 2011 at 6:25 PM, Eric Sandeen <sandeen@...hat.com> wrote:
> On 5/13/11 9:56 AM, Ted Ts'o wrote:
>> On Fri, May 13, 2011 at 12:17:03PM +0300, Amir Goldstein wrote:
>>>
>>> Can anyone try to reproduce the error with xfstest 005 and the crash
>>> with xfstest 232?
>>
>> Xfstest #5 broke because of a change in the VFS, which now allows up
>> to 40 nested symlinks.  So that's a matter of your xfstests being too
>> old.
>>
>> The version of xfstests I've been using on my KVM box is too old to
>> have test 232, so I haven't been able to test it.  I've been trying to
>> use a newer version of xfstests, but xfstests doesn't build on either
>> Ubuntu 10.04 (LTS), Debian stable, or Debian unstable, due to the use
>> of newer XFS ioctl's and xfsctl's that aren't defined in the system
>> header files.  The fact that it doesn't work on Ubuntu LTS and Stable
>> is not that surprising, I suppose, but I was a bit disappointed that
>> it doesn't work on Debian unstable.
>
> I missed that bug report :)  If you can send me the details of the
> failures we can probably add configure tests for any new ioctls
> that are causing build failures.
>
>> Since I don't have a Fedora system handy --- which header file are
>> things like "struct xfs_flock64" supposed to be defined these days?
>
> Hm, well, on my Fedora system, /usr/include/xfs/xfs_fs.h, from xfsprogs-devel.
>
> I don't think that has changed in a very long time...
>
> I also package an xfsprogs-qa-devel which has some additional pieces in
> it to support xfstests.  Debian could do the same ... "make install-qa"
> in xfsprogs puts those bits into the root.
>

After xfstests failed to build on Ubuntu 10.10,  I followed the advice omitted
by the build script to run "make install-qa", to solve the problem.
It took me a while to figure exactly where I should run the command,
but in the end I pulled the xfsprogs tree, ran "make; make install;
make install-qa"
and from there on things were looking better.

Amir.

> -Eric
>
>>                                                    - Ted
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