Re: generic/258 questions (mount issue)...

Michael L. Semon
2013-05-22T16:48:56Z

On 05/22/2013 12:19 PM, Eric Sandeen wrote:
> On 5/22/13 11:15 AM, Michael L. Semon wrote:
>> On 05/22/2013 10:10 AM, Eric Sandeen wrote:
>>> On 5/21/13 10:03 PM, Michael L. Semon wrote:

>> One day, I would like to earn git-log fame by incorporating better
>> support for JFS and especially NILFS2 into xfstests. However,
>> that's a topic for another day. I know that I have uses for both
>> filesystems, but that doesn't mean anybody else does. Their
>> mailing lists don't give much hint of user community or progress.
>
> The generic tests hopefully work; if not, it should be a fairly
> simple fixup. And you're free to add fs-specific tests :)
>
> (I'm not sure if we fall back by default to mkfs.$FSTYP and fsck.$FSTYP;
> if so, it might just work)
>
> -Eric

They work fine--JFS currently survives all of generic/* intact--but...

JFS: The syntax for a lot of things is very close to that of ReiserFS,
ext3, and ext4 filesystems. However, before just inserting "jfs" into
the common/rc case switches, test results need to be audited for JFS.
Additionally, I don't know if the current tests use external journals
for non-XFS filesystems: My first attempt stepped all over the XFS
journal creation script, looked messy, and was probably buggy as well.

NILFS2: fsstress/fsx seems to slowly rip NILFS2 to bits, and I have
to come up with a narrower test and report bugs to those guys.
common/rc could be revised to better target filesystems with no
fsck whatsoever, such as NILFS2 and F2FS. I've been getting by with
a simple `ln -s /bin/true /sbin/fsck.nilfs2`, and really, that is the
best long-term solution from an administrative standpoint.

So you see how this might be an easy fix but still take up hours in
debugging...

Thanks again!

Michael