Couldn't kill the $where operations in features3.js

 m30999| Thu Feb 28 16:48:04.158 [Balancer] distributed lock 'balancer/bs-rhel-57-64-1:30999:1362087981:1804289383' unlocked. 

 m30999| Thu Feb 28 16:48:14.192 [Balancer] Refreshing MaxChunkSize: 50

 m30999| Thu Feb 28 16:48:14.193 [Balancer] trying to acquire new distributed lock for balancer on localhost:30000 ( lock timeout : 900000, ping interval : 30000, process : bs-rhel-57-64-1:30999:1362087981:1804289383 )

 m30999| Thu Feb 28 16:48:14.193 [Balancer] about to acquire distributed lock 'balancer/bs-rhel-57-64-1:30999:1362087981:1804289383:

 m30999| { "state" : 1,

 m30999|   "who" : "bs-rhel-57-64-1:30999:1362087981:1804289383:Balancer:1681692777",

 m30999|   "process" : "bs-rhel-57-64-1:30999:1362087981:1804289383",

 m30999|   "when" : { "$date" : "Thu Feb 28 16:48:14 2013" },

 m30999|   "why" : "doing balance round",

 m30999|   "ts" : { "$oid" : "512fd09e35bdda7180379e43" } }

 m30999| { "_id" : "balancer",

 m30999|   "state" : 0,

 m30999|   "ts" : { "$oid" : "512fd09435bdda7180379e42" } }

 m30999| Thu Feb 28 16:48:14.195 [Balancer] distributed lock 'balancer/bs-rhel-57-64-1:30999:1362087981:1804289383' acquired, ts : 512fd09e35bdda7180379e43

 m30999| Thu Feb 28 16:48:14.195 [Balancer] *** start balancing round

 m30999| Thu Feb 28 16:48:14.195 [Balancer] waitForDelete: 0

 m30999| Thu Feb 28 16:48:14.195 [Balancer] secondaryThrottle: 1

2013-02-28 16:48:23 EST	

 m30999| Thu Feb 28 16:48:14.196 [Balancer] shard0001 has more chunks me:1 best: shard0000:1

 m30999| Thu Feb 28 16:48:14.196 [Balancer] collection : test.foo

 m30999| Thu Feb 28 16:48:14.196 [Balancer] donor      : shard0000 chunks on 1

 m30999| Thu Feb 28 16:48:14.196 [Balancer] receiver   : shard0000 chunks on 1

 m30999| Thu Feb 28 16:48:14.196 [Balancer] threshold  : 2

 m30999| Thu Feb 28 16:48:14.196 [Balancer] no need to move any chunk

 m30999| Thu Feb 28 16:48:14.196 [Balancer] *** end of balancing round

 m30999| Thu Feb 28 16:48:14.196 [Balancer] distributed lock 'balancer/bs-rhel-57-64-1:30999:1362087981:1804289383' unlocked. 

assert.soon failed: function (){

    // Get all the current operations

    mine = getMine( state == 0 && i > 20 );

    i++;

    // Wait for the queries to start

    if ( state == 0 && mine.length > 0 ){

        // Queries started

        state = 1;

        // Kill all $where

        mine.forEach( function(z){ printjson( db.getSisterDB( "admin" ).killOp( z.opid ) ); }  )

        killTime = new Date()

    }

    // Wait for killed queries to end

    else if ( state == 1 && mine.length == 0 ){

        // Queries ended

        state = 2;

        return true;

    }

}, msg:Couldn't kill the $where operations.

Error: Printing Stack Trace

    at printStackTrace (src/mongo/shell/utils.js:37:7)

    at doassert (src/mongo/shell/assert.js:6:1)

    at Function.assert.soon (src/mongo/shell/assert.js:110:48)

    at /data/buildslaves/Linux_RHEL_64bit/mongo/jstests/sharding/features3.js:81:8