kwsapd chewing up all CPU

[mmacdonald at symcor.com]

I have a redhat 9 server that seems to have kswapd chew up all the CPU and
eventually lock up the system.  From what I can tell there is still lots of
memory free and the Server is not all that busy when it happens:

                                                                                                     
  21:43:43  up 63 days, 18:24,  0 users,  load average: 7.85, 5.35, 4.17                             
 82 processes: 81 sleeping, 1 running, 0 zombie, 0 stopped                                           
 CPU0 states:   2.0% user   4.0% system    0.0% nice   0.0% iowait  93.0% idle                       
 CPU1 states:   0.1% user  33.1% system    0.0% nice   0.0% iowait  65.0% idle                       
 Mem:  1288752k av, 1066068k used,  222684k free,       0k shrd,    5616k buff                       
                     145832k actv,    3352k in_d,   20324k in_c                                      
 Swap: 2096220k av,   24440k used, 2071780k free                  147976k cached                     
                                                                                                     
   PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME CPU COMMAND                           
     7 root      25   0     0    0     0 SW   35.4  0.0 195:53   1 kswapd                            
  1793 bb        24   0  1124 1124   800 R     0.8  0.0   0:00   1 top                               
     1 root      15   0   116   84    56 S     0.0  0.0   1:01   0 init                              
     2 root      RT   0     0    0     0 SW    0.0  0.0   0:00   0 migration/0                       
     3 root      RT   0     0    0     0 SW    0.0  0.0   0:00   1 migration/1                       
                                                                                                     
                                                                                                     


                                    ..........................
Can anyone help me in determining what the problem could be.  The system is
a dual 1.4 GHz Zeon Server with 1 GB RAM and 2 GB Swap.  Kernel Level is
2.4.20-30.9smp.