Re: Kernel panic: Route cache, RCU, possibly FIB trie.

Jesper Dangaard Brouer a écrit :

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: Operation not permitted
/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:65536
/proc/sys/net/ipv4/route/gc_timeout:300
/proc/sys/net/ipv4/route/max_delay:10
/proc/sys/net/ipv4/route/max_size:1048576
/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

I would say : Change the settings :)

echo 2 > /proc/sys/net/ipv4/route/gc_elasticity
echo 1 > /proc/sys/net/ipv4/route/gc_interval
echo 131072 > /proc/sys/net/ipv4/route/gc_thresh

and watch the output of :

rtstat -c 100 -i 1

(you might have to recompile lnstat/rtstat from iproute2 package from

http://developer.osdl.org/dev/iproute2/download/

Eric
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