From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] Limit size of route cache hash table
Date: Sun, 26 Apr 2009 23:11:13 -0700 (PDT)
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From: Anton Blanchard <anton@samba.org>
Date: Mon, 27 Apr 2009 13:04:33 +1000

> Right now we have no upper limit on the size of the route cache hash table.
> On a 128GB POWER6 box it ends up as 32MB:
> 
>     IP route cache hash table entries: 4194304 (order: 9, 33554432 bytes)

Pretty reasonable size for a machine with that much ram.  In fact
perhaps not large enough depending upon your workload. :-)

If it's not suitable for you, as Eric Dumazet explained, pass the
appropriate option on the kernel command line.