On Fri, Nov 02, 2012 at 11:38:44AM +1100, Dave Chinner wrote:
> From: Dave Chinner <dchinner@xxxxxxxxxx>
>
> Commit 4439647 ("xfs: reset buffer pointers before freeing them") in
> 3.0-rc1 introduced a regression when recovering log buffers that
> wrapped around the end of log. The second part of the log buffer at
> the start of the physical log was being read into the header buffer
> rather than the data buffer, and hence recovery was seeing garbage
> in the data buffer when it got to the region of the log buffer that
> was incorrectly read.
I think you mentioned earlier you found a reproducer for this, any
chance it could be added to xfstests?
> error = xlog_bread_offset(log, 0,
> - bblks - split_bblks, hbp,
> + bblks - split_bblks, dbp,
Looks good,
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
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