Cannot suppress ClientCursor::yield "warnings" from logs

We have loglevel set to 0 and quiet mode on, and our logs are still being filled with these "warnings", its filling up the disk rapidly

warning: ClientCursor::yield can't unlock b/c of recursive lock ns

We use db.eval specifically for the benefit that it locks the db, so my understanding is these warnings are totally normal because of that.

db.runCommand(

)
{
"quiet" : true,
"notablescan" : false,
"logLevel" : 0,
"syncdelay" : 60,
"replApplyBatchSize" : 1,
"ok" : 1
}