Jon Peatfield wrote: > On Fri, 18 May 2007, Miles O'Neal wrote: > >> We're getting "do_ypcall: clnt_call: RPC: Timed out" >> errors. >> > > Now we have some servers with Intel mboards with braindead BMC chipsets > which eat all traffic to the IPMI ports. When anything happened to pick > those ports it never gets an answer so will time out. We saw *lots* of > this especially doing things which caused lots of yp requests -- until > we tracked it down and caused things to avoid the IPMI ports. > > Echoing what Jon Peatfield says, I have seen these errors on systems. Can I ask if you have IPMI on these machines? If that is so, I have a suggested fix. Use sysctl to set sunrpc.min_resvport to 665 (IPMI cards use port 664 also) To make the fix persist after a reboot, edit /etc/sysctl.conf and add the lines: sunrpc.max_resvport = 1023 sunrpc.min_resvport = 650 Please try this and let the list know if it fixes the problem. -- John Hearns Senior HPC Engineer Streamline Computing, The Innovation Centre, Warwick Technology Park, Gallows Hill, Warwick CV34 6UW Office: 01926 623130 Mobile: 07841 231235