Re: XFS unhappy with large holey loopback and syncs

[Andi Kleen <ak@xxxxxxx>]

> You need at least 23GiB of disk space for the test to run. Given the
> filesytem i tested on was ~8.5TB, I guess I wouldn't have seen this.

Hmm, the fs was indeed smaller. That would probably explain it right.
I wouldn't have expected that it needed that much data.

> I can't test this on ext3 or reiserfs because they don't appear to support 
> sparse
> files larger than the filesytem itself.

JFS does. 

> 
> I'd try running this on a larger XFS filesystem (e.g. 30GB) and see if the
> problem goes away.

Will do later thanks.

-Andi