Re: [Dump-users] Corruption of recently-modified file contents

[Stelian P. <st...@po...>]

Le jeudi 08 mars 2007 à 16:31 +0000, Ben Harris a écrit :
> On Wed, 7 Feb 2007, Peter Münster wrote:
> 
> > I think, it's expected, since you use dump on an active file-system.
> 
> So it would appear.  It looks like dump actually calls BLKFLSBUF itself, 
> so the problem only occurs when dump isn't running as root.

Dump does anyway need to have enough priviledges to access the raw block
device directly, and I would have expected BLKFLSBUF to work in these
conditions.

> > How to deal with it:
> > - you can mount the file-system read-only during the dump
> 
> This doesn't help.  Without the BLKFLSBUF, the dump is still inconsistent.

How can this be ? The remount process explicitely flushes the data to
the disk, and in R/O mode no further modifications are allowed.

Stelian.
-- 
Stelian Pop <st...@po...>