Hi, >> Nfs4 client randomly hangs on a file or directory (for instance when >> performing df or find) and after a few seconds continues. When >> preforming strace, it hangs on getdents system call. >> >> Errors on the server side: >> Aug 19 21:29:08 host kernel: nfs: server host2 not responding, still trying >> Aug 19 21:31:17 host kernel: nfs: server host2 OK >> >> After a while the load on client and server side increases intensively, >> then system on the client side crashes. Reboot required. > >> Mount options: >> Flags: >> rw,relatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,hard,noresvport,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=IP,local_lock=none,addr=IP >>
SL5 or SL6 on Server side? We had many hungs with SL5 as server but with kerberos auth, never tried NFS4 with sec=sys. Sincerly, Klaus -- Rechnerbetriebsgruppe / IT, Fakultät für Physik Klaus Steinberger FAX: +49 89 28914280 Tel: +49 89 28914287
