Re: 2.2.13pre14 lockup caused by do_check_pgt_cache()

David S. Miller (davem@redhat.com)
Wed, 29 Sep 1999 07:52:18 -0700


Date: Wed, 29 Sep 1999 15:45:01 +0100 (BST)
From: Alan Cox <alan@lxorguk.ukuu.org.uk>

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

The cache sizes are per-cpu on SMP, there are no locks, it was
designed this way on purpose.

Later,
David S. Miller
davem@redhat.com

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