Andrew Morton wrote:
On Tue, 19 Dec 2006 20:56:50 +1100
Nick Piggin <[email protected]> wrote:
I think it could be very likely that indeed the bug is a latent one in
a clear_page_dirty caller, rather than dirty-tracking itself.
The only callers are try_to_free_buffers(), truncate and a few scruffy
possibly-wrong-for-fsync filesytems which aren't being used here.
Well truncate/invalidate will not operate on mapped pages (barring the
very-unlikely truncate/invalidate vs fault races). We can ignore those
filesystems as they don't include ext3. Which brings us back to
try_to_free_buffers().
Maybe it is something else entirely, but did try_to_free_buffers ever
get completely cleared? Or was some of Andrei's corruption possibly
leftover on-disk corruption from a previous kernel?
--
SUSE Labs, Novell Inc.
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