On Fri, 12 Aug 2005 12:07:21 +1000
Neil Brown <[email protected]> wrote:
> You could possibly put something like
>
> struct bio_vec *from;
> int i;
> bio_for_each_segment(from, bio, i)
> BUG_ON(page_zone(from->bv_page)==NULL);
>
> in generic_make_requst in drivers/block/ll_rw_blk.c, just before
> the call to q->make_request_fn.
> This might trigger the bug early enough to see what is happening.
I've got tests running with this code in place, by I/O is so slow now
I don't think it's going to oops (or if it does, it'll be a while)..
Is there any other info I can collect to help track this down?
--
Phil Dier (ICGLink.com -- 615 370-1530 x733)
/* vim:set noai nocindent ts=8 sw=8: */
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