Re: 2.2.13pre14 lockup caused by do_check_pgt_cache()
Alan Cox (alan@lxorguk.ukuu.org.uk)
Wed, 29 Sep 1999 15:45:01 +0100 (BST)
> >It looks like do_check_pgt_cache got stuck in it's loop. Not sure which
> >path it was following but it looks like get_pgd_fast->get_pgd_slow does NOT
> >always change pgtable_cache_size. get_pmd_fast does NOTHING, and
>
> The design looks race free and the code looks ok to me.
It looks safe providing nobody is ever touching it without holding the
right locks. One person fiddling with them out of the locks and its going
to get the cache_size wrong over time and then boom.. exit stage left
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