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PCALC was disabled. System was in Out of Memory state

Hi Expert,

I found the information "PCALC was disabled. System was in Out of Memory state" output commadn from show mpls traffc-eng tunnels 800. I checked the memory resource on the router, the memory available about 192 MB from 2 GB. I noticed the top process are using high memory such as bgp, ipv4_rib. I'm unsure how can i troubleshoot this and  increase the free memory on Cisco 12410/PRP? Notes, 0/8/CPU0 is PRP-2. Thanks

node0_8_CPU0: 301 procs, 1 cpu, 1.09 delta, 7846:21:23 uptime

Memory: 2048 MB total, 192.593 MB free, sample time: Fri Jul 13 10:16:14 2012

cpu 0 idle: 83.32%, kernel:  3.07%

      pid   mem MB   user cpu kernel cpu   delta  % ker  % tot name   

   291088  278.906 628996.463  14841.822   0.019   0.09   1.88 bgp

   258295  153.839 508884.264   3657.564   0.003   0.00   0.29 ipv4_rib

    49182   51.109   1181.148     89.111   0.001   0.00   0.09 devb-eide-prp2

     8195   18.750    898.618     41.623   0.005   0.00   0.49 dllmgr

   258301   16.789   2977.574    110.324   0.000   0.00   0.00 ipv6_rib

   122970   16.652    110.690     11.173   0.000   0.00   0.00 parser_server

   131181    8.281   1671.270    149.166   0.000   0.00   0.00 sysdb_shared_nc

   118862    7.921 131443.621  21659.765   0.022   0.29   2.17 gsp

   131182    7.187    598.877     43.159   0.000   0.00   0.00 sysdb_shared_sc

   122974    6.949    878.066      5.141   0.000   0.00   0.00 nvgen_server

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