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

[Eric Sandeen <sandeen@sandeen.net>]

Eric Sandeen wrote:
> Alessandro Bono wrote:

..

>> sure, attached
> 
> Well, that seems to not be from the kernel you were running; there is no
> BUG() on line 470:
> 
> $ cat -n buffer.c | grep -8 "   470"
>    462				       bdevname(bh->b_bdev, b));
>    463			}
>    464			set_bit(AS_EIO, &page->mapping->flags);
>    465			set_buffer_write_io_error(bh);
>    466			clear_buffer_uptodate(bh);
>    467			SetPageError(page);
>    468		}
>    469	
>    470		first = page_buffers(page);

oh, oops :)  it's probably this BUG():

#define page_buffers(page)                                      \
        ({                                                      \
                BUG_ON(!PagePrivate(page));                     \


-Eric