On Fri, Dec 15 2006, Andrew Morton wrote:
> On Fri, 15 Dec 2006 21:39:36 +0100
> Damien Wyart <[email protected]> wrote:
>
> > With this new kernel, I notice two messages I do not have with
> > 2.6.19-rc6-mm2 :
> >
> > Dec 15 20:00:47 brouette kernel: Filesystem "sdb9": Disabling barriers,trial barrier write failed
> > Dec 15 20:00:47 brouette kernel: Filesystem "sda5": Disabling barriers,trial barrier write failed
> >
> > Nothing changed in the config between the two, and going back to
> > 2.6.19-rc6-mm2 do not give the messages.
>
> I don't think anything has changed in this area in XFS. I'd expect that
> something got broken in sata, ata_piix or the block core which caused the
> "trial barrier write" to start failing. Various cc's hopefully added.
There hasn't been any barrier changes lately (or block layer handling of
such), so I don't think it's in that area. I'll do some barrier testing
today to verify that things work for me.
--
Jens Axboe
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