"dst cache overflow" messages and crash

Linux Advanced Routing and Traffic Control

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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.
--
==============================================
|              FRÉDÉRIC MASSOT               |
|     http://www.juliana-multimedia.com      |
|   mailto:frederic@xxxxxxxxxxxxxxxxxxxxxx   |
===========================Debian=GNU/Linux===

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