Re: 2.4.0-test10-pre3:Oops in mm/filemap.c:filemap_write_pa

[Trond Myklebust]

>>>>> " " == Petr Vandrovec <[EMAIL PROTECTED]> writes:

     > You do not have to use NFS - look for my postings with
     > 'page->mapping == NULL' in archive. Your code uses shared mmap,
     > 'page->isn't
     > it? Probably shared by couple of processes.

It's probably particularly nasty under NFS because of
invalidate_inode_pages(). The latter empties the page cache whenever
we can no longer trust it and calls remove_inode_page() on every
unlocked page. It won't care whether the page is mmapped or not.

My guess is therefore that the line setting 'page->mapping = NULL' in
__remove_inode_page() is a candidate for scrutiny...

Cheers,
  Trond
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