Re: kernel BUG at mm/truncate.c:475!

[Miklos Szeredi]

On Tue, 14 Dec 2010, Hugh Dickins wrote:
> I'd feel rather happier about it if I thought it would also fix
> Robert's kernel BUG at /build/buildd/linux-2.6.35/mm/filemap.c:128!
> but I've still not found time to explain that one.

Me neither, all unmap_mapping_range() calls from shmfs are either with
i_mutex or from evict_inode.

Hmm, is there anything preventing remap_file_pages() installing a pte
at an address that unmap_mapping_range() has already processed?

Thanks,
Miklos
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