On Tue, 03 Mar 2009 21:39:32 +0100
Alexey Fisher <[email protected]> wrote:
> >> I use board with ICH10R south bridge, AHCI mode.
> >
> > In my case it was happening _only_ with barriers enabled (like ext3 mounted
> > with
> > "barrier=1") or with XFS (that enables barriers by default).
> >
> > Does it survives an untar with barriers?
>
> ext4 have barriers enabled by default, but it will disable it if hdd is
> not capable to do it. So it will just return:
> JBD: barrier-based sync failed on dm-1:8 - disabling barriers
HD in question _CAN_ do barriers.
You are using device mapper, maybe it's that additional layer that
causes barriers to be disabled.
Try with a "raw" partition and see what happens.
--
Paolo Ornati
Linux 2.6.29-rc6-00305-g2450cf5 on x86_64
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