Problems with XFS on iSCSI in RHEL4

[Christoph Hellwig]

On Wed, May 06, 2009 at 12:32:25PM -0700, Andrew Daviel wrote:
> When I create an ext3 volume on the Sun, things are OK.
> When I create an XFS volume, after doing mkdir, I get e.g.
>   kernel: Bad page state at free_hot_cold_page (in process 'iscsi-rx',
>   page c1069a20)
>   kernel: Trying to fix it up, but a reboot is needed
>   kernel: Bad page state at free_hot_cold_page (in process 'syslogd',
>   page c1069a20)

That looks like the old disagreement on whether we could send
non-refcountable pages to the block layer.  XFS used to do this and
iscsi didn't like it.  Until today it's still not specified if it
is allowed or not and most drivers don't care but XFS stopped doing
that.