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Re: Memory leak in 2.6.11-rc1?

To: Russell King <rmk+lkml@xxxxxxxxxxxxxxxx>
Subject: Re: Memory leak in 2.6.11-rc1?
From: Andrew Morton <akpm@xxxxxxxx>
Date: Thu, 27 Jan 2005 00:47:32 -0800
Cc: torvalds@xxxxxxxx, alexn@xxxxxxxxx, kas@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxx
In-reply-to: <20050127082809.A20510@flint.arm.linux.org.uk>
References: <20050121161959.GO3922@fi.muni.cz> <1106360639.15804.1.camel@boxen> <20050123091154.GC16648@suse.de> <20050123011918.295db8e8.akpm@osdl.org> <20050123095608.GD16648@suse.de> <20050123023248.263daca9.akpm@osdl.org> <20050123200315.A25351@flint.arm.linux.org.uk> <20050124114853.A16971@flint.arm.linux.org.uk> <20050125193207.B30094@flint.arm.linux.org.uk> <20050127082809.A20510@flint.arm.linux.org.uk>
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Russell King <rmk+lkml@xxxxxxxxxxxxxxxx> wrote:
>
> This mornings magic numbers are:
> 
>  3
>  ip_dst_cache        1292   1485    256   15    1

I just did a q-n-d test here: send one UDP frame to 1.1.1.1 up to
1.1.255.255.  The ip_dst_cache grew to ~15k entries and grew no further. 
It's now gradually shrinking.  So there doesn't appear to be a trivial
bug..

>  Is no one interested in the fact that the DST cache is leaking and
>  eventually takes out machines?  I've had virtually zero interest in
>  this problem so far.

I guess we should find a way to make it happen faster.

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