Hi all, Sometimes we see the following xrootd errors in our xrootd server logs seving the kanga data of the file system. Whenever we see this error, user analysis jobs crashes. Can anybody please advise what these errors mean and how to fix it ? Here is the errors: 071211 19:54:23 25405 XrdPoll: disable poll 0 failed; FD 19 does not map to a link 071211 19:54:23 25405 XrdPoll: Detach of enabled link rsobie.29803:[log in to unmask] 071211 19:54:23 25405 XrdPoll: disable poll 0 failed; FD 19 does not map to a link 071211 19:54:23 25405 XrdPoll: detach poll 0 failed; FD 19 does not map to a link 071211 20:45:14 25405 XrdPoll: enable poll 0 failed; FD 61 does not map to a link 071211 21:56:36 25405 XrdPoll: Orphaned entry 23 fd=-91 poller=2 Thanks, Ashok