Re: dst cache overflow

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grep . /proc/sys/net/ipv4/route/*

/proc/sys/net/ipv4/route/error_burst:5000
/proc/sys/net/ipv4/route/error_cost:1000
grep: /proc/sys/net/ipv4/route/flush: Invalid argument
/proc/sys/net/ipv4/route/gc_elasticity:8
/proc/sys/net/ipv4/route/gc_interval:60
/proc/sys/net/ipv4/route/gc_min_interval:0
/proc/sys/net/ipv4/route/gc_min_interval_ms:500
/proc/sys/net/ipv4/route/gc_thresh:4096
/proc/sys/net/ipv4/route/gc_timeout:300
/proc/sys/net/ipv4/route/max_delay:10
/proc/sys/net/ipv4/route/max_size:65536
/proc/sys/net/ipv4/route/min_adv_mss:256
/proc/sys/net/ipv4/route/min_delay:2
/proc/sys/net/ipv4/route/min_pmtu:552
/proc/sys/net/ipv4/route/mtu_expires:600
/proc/sys/net/ipv4/route/redirect_load:20
/proc/sys/net/ipv4/route/redirect_number:9
/proc/sys/net/ipv4/route/redirect_silence:20480
/proc/sys/net/ipv4/route/secret_interval:600


cat /proc/net/stat/rt_cache

entries in_hit in_slow_tot in_no_route in_brd in_martian_dst in_martian_src out_hit out_slow_tot out_slow_mc gc_total gc_ignored gc_goal_miss
gc_dst_overflow in_hlist_search out_hlist_search
000000b9 02e05549 01fa47b9 00000000 00000000 00016e03 00000022 00251b22 00083e65 0000fe7e 00000008 00f15fc6 00f064e8 0000ebe8 0000eb57 08703a77
000087cf
000000b9 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0001105a 000027ed 00000002 0000018f 00000171 0000000e 00000009 00000000
00003217





Quoting Eric Dumazet <[email protected]>:

[email protected] a écrit :
I see on 2.6.10/2.6.11.3



Hello

Could you give us the results of these commands :

# grep . /proc/sys/net/ipv4/route/*
# cat /proc/net/stat/rt_cache

Eric Dumazet

Quoting Phil Oester <[email protected]>:

On Tue, Mar 22, 2005 at 10:39:43AM +0200, [email protected] wrote:


computer's main job is to be router on small LAN with 10 users and  so
me
services like qmail, apache, proftpd, shoutcast, squid, and ices on sl
ack
10.1. Iptables and tc are used to limit  bandwiwdth and the two bandwi
dthd
 daemons are running on eth0 interface and all the time the cpu is use
d at
about 0.4% and additional 12% by ices  when encoding mp3 on demand, an
d
the proccess ksoftirqd/0 randomally starts to use 100% of 0 cpu in nor
mal
situation and one time when the ksoftirqd/0 became crazy i noticed dst
cache overflow messages in syslog but there are more of thies lines in
logs  about 5 times in 10 days period


There was a problem fixed in the handling of fragments which caused dst
cache overflow in the 2.6.11-rc series.  Are you still seeing dst cache
overflow on 2.6.11?

Phil




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