From: Ravikiran G Thirumalai Subject: 2.6.21.3: NFS: Buggy server - nlink == 0! Date: Wed, 6 Jun 2007 01:13:03 -0700 Message-ID: <20070606081303.GB7168@localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-kernel@vger.kernel.org To: nfs@lists.sourceforge.net Return-path: Sender: linux-kernel-owner@vger.kernel.org List-ID: While running a dbench stress test on a nfs mounted file system, I notice the subject error message on the client machine. The client machine is a 48 core box with NUMA characteristics and 1024 dbench processes running continuously in a loop, while another memory hog application runs in parallel. The client is on 2.6.21.3. The server is booted up with 2.6.21.3 as well. Attached is the server configuration. Same test on a 2.6.16 client does not spew out these messages. Is this really the server issue, or is the NFS client to be blamed here? fstab on the client goes as: vus2:/mnt/sda5 /nfstest nfs udp,wsize=32768,rsize=32768 0 0 /etc/exports on the server looks like: /mnt/sda5 *(rw,no_root_squash,sync) I will be happy to post full config/dmesg if required. The client side NFS config goes as: # # Network File Systems # CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set # CONFIG_NFS_V4 is not set CONFIG_NFS_DIRECTIO=y CONFIG_NFSD=y CONFIG_NFSD_V3=y # CONFIG_NFSD_V3_ACL is not set # CONFIG_NFSD_V4 is not set CONFIG_NFSD_TCP=y CONFIG_LOCKD=y CONFIG_LOCKD_V4=y CONFIG_EXPORTFS=y CONFIG_NFS_COMMON=y CONFIG_SUNRPC=y # CONFIG_RPCSEC_GSS_KRB5 is not set # CONFIG_RPCSEC_GSS_SPKM3 is not set The server side NFS config goes as: # # Network File Systems # CONFIG_NFS_FS=m CONFIG_NFS_V3=y CONFIG_NFS_V3_ACL=y # CONFIG_NFS_V4 is not set CONFIG_NFS_DIRECTIO=y CONFIG_NFSD=m CONFIG_NFSD_V2_ACL=y CONFIG_NFSD_V3=y CONFIG_NFSD_V3_ACL=y CONFIG_NFSD_V4=y CONFIG_NFSD_TCP=y CONFIG_LOCKD=m CONFIG_LOCKD_V4=y CONFIG_EXPORTFS=m CONFIG_NFS_ACL_SUPPORT=m CONFIG_NFS_COMMON=y CONFIG_SUNRPC=m Thanks, Kiran