chmod() receives ESTALE against a file that is recreated from NFS server and referred from NFS client in a second

Solution Verified - Updated -

Issue

  • chmod() receives ESTALE against a file that is recreated from NFS server and referred from NFS client in a second
  • chfile.c

    #include <stdio.h>
    #include <sys/types.h>
    #include <sys/stat.h>
    #include <errno.h>
    
    int main()
    {
         if (chmod("/mnt/nfs/file", 0444) != 0)
         {
              printf("chmod fail with erro %d\n", errno);
              return 1;
         }
         return 0;
    }
    
  • reproducer

    # df -T /nfsv3 | grep ext3
    # gcc -o chfile chfile.c
    # mount 127.0.0.1:/nfsv3 /mnt/nfs
    # for i in `seq 1 3`; do touch /nfsv3/file; touch -mt 201003010000.00 /nfsv3; ./chfile; rm -f /nfsv3/file; done
    chmod fail with erro 116
    chmod fail with erro 116
    

Environment

  • Red Hat Enterprise Linux 6
  • ext3 filesystem
  • NFS

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