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Re: dst cache overflow on 2.2.16 kernel.

To: Yann Dupont <Yann.Dupont@xxxxxxxxxxxxxxxxxxx>
Subject: Re: dst cache overflow on 2.2.16 kernel.
From: Andi Kleen <ak@xxxxxx>
Date: Tue, 17 Jul 2001 17:30:05 +0200
Cc: netdev@xxxxxxxxxxx
In-reply-to: <3B52D73C.4060004@xxxxxxxxxxxxxxxxxxx>; from Yann.Dupont@xxxxxxxxxxxxxxxxxxx on Mon, Jul 16, 2001 at 01:59:56PM +0200
References: <3B52D73C.4060004@xxxxxxxxxxxxxxxxxxx>
Sender: owner-netdev@xxxxxxxxxxx
On Mon, Jul 16, 2001 at 01:59:56PM +0200, Yann Dupont wrote:
> 
> Hello. We have a firewall here (Checkpoint FW 1), installed on a RH 6.2
> 
> Every week or so, the FW logs this error : dst cache overflow
> and the routing stops.
> 
> Is changing the value of /proc/sys/net/ipv4/route (actually set to 4096) 
> a way to prevent this ? OR is this a kernel bug with this 2.2.16 realease ?
> 
> I CAN'T change the kernel, nor the distro, as the whole is under 
> contract ... and validated for this exact combination :(

You can increase the /proc/sys/net/ipv4/route/gc_thresh sysctl trying to 
work around it, but likely it's a bug in the FW-1 kernel module.
I would talk to Checkpoint.


-Andi

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