Ooops in filemap_write_page in test8

Juan J. Quintela
2000-09-11T15:00:11Z

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