XFS kernel BUG at fs/buffer.c:470! with 2.6.28.4

Mon Feb 9 01:53:08 CST 2009

On Sun, Feb 08, 2009 at 11:45:20PM +0100, Alessandro Bono wrote:
> sure, attached

That would be a missing PagePrivate bit in page_buffers() called from
end_buffer_async_write.  PG_private can only be cleared via drop_buffers
which requires the page not having PG_writeback set which must be
set until end_buffer_async_write is done.  Very strange, and all this
is generic code without xfs involvement.  Did this happen once
or can you reproduce it?