Ooops in filemap_write_page in test8

From: Juan J. Quintela (quintela@fi.udc.es)
Date: Mon Sep 11 2000 - 10:00:11 EST

Hi
        I was running mmap001 over NFS when I got one Oops, with the
        following backtrace. The problem is that the page->mapping is
        NULL, and it causes a NULL access at filemap_write_page.
        If you need any more info, let me know.

Later, Juan.

0xc29ff574 0xc012229f filemap_write_page+0xb (0xc760fec0, 0xc11a9540, 0x0)
                               kernel .text 0xc0100000 0xc0122294 0xc01222ac
           0xc01222be filemap_swapout+0x12 (0xc11a9540, 0xc760fec0)
                               kernel .text 0xc0100000 0xc01222ac 0xc01222d0
           0xc0126ca0 try_to_swap_out+0x150 (0xc1298120, 0xc2522c20, 0x4015d000,
 0xc29ff574, 0x4)
                               kernel .text 0xc0100000 0xc0126b50 0xc0126d70
           0xc0126e83 swap_out_vma+0x113 (0xc1298120, 0xc2522c20, 0x4015d000, 0x
4)
                               kernel .text 0xc0100000 0xc0126d70 0xc0126f08
           0xc0126f4c swap_out_mm+0x44 (0xc1298120, 0x4)
                               kernel .text 0xc0100000 0xc0126f08 0xc0126f74
           0xc012705f swap_out+0xeb (0x3c, 0x4)
                               kernel .text 0xc0100000 0xc0126f74 0xc01270e4
           0xc0127276 do_try_to_free_pages+0x192 (0x4, 0x10f00, 0xc1255fb8, 0x0)
                               kernel .text 0xc0100000 0xc01270e4 0xc012730c
           0xc01273a9 kswapd+0x9d
                               kernel .text 0xc0100000 0xc012730c 0xc01273b0
           0xc0107488 kernel_thread+0x28
                               kernel .text 0xc0100000 0xc0107460 0xc0107498 

-- 
In theory, practice and theory are the same, but in practice they 
are different -- Larry McVoy
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