On Mon, 18 Dec 2006, Andrei Popa wrote:
> >
> > This should be fairly easy to test: just change every single ", 1" case in
> > the patch to ", 0".
> >
> > What happens for you in that case?
>
> I have file corruption.
Magic. And btw, _thanks_ for being such a great tester.
So now I have one more thng for you to try, it you can bother:
There's exactly two call sites that call "page_mkclean()" (an dthat is the
only thing in turn that calls "page_mkclean_one()", which we already
determined will cause the corruption).
Both of them do
if (mapping_cap_account_dirty(mapping)) {
..
things, although they do slightly different things inside that if in your
patched kernel.
Can you just TOTALLY DISABLE that case for the test_clear_page_dirty()
case? Just do an "#if 0 .. #endif" around that whole if-statement, leaving
the _only_ thing that actually calls "page_mkclean()" to be the
"clear_page_dirty_for_io()" call.
Do you still see corruption?
Linus
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