Re: Something wrong with extent-based journal creation

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Andreas Dilger wrote:
> On Jun 16, 2009  17:38 -0500, Eric Sandeen wrote:
>> I've narrowed it down to the commit (961306d3) which creates the journal
>> with extent format; if that's commented out, it works fine.
> 
> Hmm, this seems like it might be a troublesome feature...  Are we sure
> that there is proper kernel/tool compatibility for an extent-mapped
> journal?  At least none of the Lustre code has any support for this,
> though they can handle the INCOMPAT_EXTENTS feature, and I don't think
> this was present in older kernels either.
> 
> I haven't looked at the code for this yet, so it may be that it will
> "just work", but if this is a new feature I would urge caution w.r.t.
> compatibility before this is merged upstream (in either e2fsprogs or
> the kernel).

It's already upstream.... :)

But I found the problem I was looking for, at least, see the [PATCH] in
reply to my original email.  (which is actually a pretty bad bug, likely
causing problems during e2fsck etc as well)

-Eric
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