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Re: "dst cache overflow" messages and crash

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Frédéric Massot wrote:
> Hi,
>
> I regularly have errors (kernel: dst cache overflow) and crash of a
> firewall under Linux 2.6.17 and the route patch from Julian Anastasov.
>
> With rtstat I see that the route cache size increases regularly without
> never decreasing.
>
> I have this parameters:
> fw:/proc/sys/net/ipv4/route# grep . *
> error_burst:1250
> error_cost:250
> gc_elasticity:15
> gc_interval:60
> gc_min_interval:0
> gc_min_interval_ms:500
> gc_thresh:4096
> gc_timeout:300
> max_delay:10
> max_size:65536
> min_adv_mss:256
> min_delay:2
> min_pmtu:552
> mtu_expires:600
> redirect_load:5
> redirect_number:9
> redirect_silence:5120
> secret_interval:600
>
> I can increase the maximum size of the cache, but that will do nothing
> but delay the crash.
>
> Can you help me?
>
> Regards.
max_size=65536
is to low increase size to 256k

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