Re: [PATCH 1/6] hfsplus: prevent btree data loss on root split

[Christoph Hellwig <hch@xxxxxxxxxxxxx>]

On Fri, Aug 31, 2018 at 12:58:19AM -0300, Ernesto A. Fernández wrote:
> Creating, renaming or deleting a file may cause catalog corruption and
> data loss.  This bug is randomly triggered by xfstests generic/027, but
> here is a faster reproducer:
> 
>   truncate -s 50M fs.iso
>   mkfs.hfsplus fs.iso
>   mount fs.iso /mnt
>   i=100
>   while [ $i -le 150 ]; do
>     touch /mnt/$i &>/dev/null
>     ((++i))
>   done
>   i=100
>   while [ $i -le 150 ]; do
>     mv /mnt/$i /mnt/$(perl -e "print $i x82") &>/dev/null
>     ((++i))
>   done
>   umount /mnt
>   fsck.hfsplus -n fs.iso

It would be good to wire up this short reproducer as well for xfstests.