[LTP] dead loop of closing/removing tmp file when TMPDIR is on nfsv4

[Simon Xu <xu.simon@oracle.com>]

Hi,

If nfsv4 filesystem is used for TMPDIR, some testcases will have dead 
loop when closing/removing tmp dir or file, and LTP output file will 
quickly reach several gigabytes in less than 10 seconds.

For example:

access02:

<<<test_output>>>
access02    1  TBROK  : chown(/mnt/nfsv4/ltp-7QMNLSoD0z/accsjrpxj, -1, 
0) failed: errno=EPERM(1): Operation not permitted
access02    2  TBROK  :  Remaining cases broken
access02    0  TWARN  :  tst_brk: Invalid Type: 4. Using TBROK
access02    3  TBROK  :  tmpdir_cleanup: no user cleanup function called 
before exiting
access02    4  TBROK  :  unexpected signal 11 received (pid = 6283).
access02    5  TFAIL  :  close(test_file2) failed: errno=EBADF(9): Bad 
file descriptor
access02    6  TFAIL  :  close(temp_file) failed: errno=EBADF(9): Bad 
file descriptor
access02    7  TFAIL  :  close(temp_file) failed: errno=EBADF(9): Bad 
file descriptor
access02    8  TFAIL  :  close(temp_file) failed: errno=EBADF(9): Bad 
file descriptor
access02    9  TFAIL  :  close(temp_file) failed: errno=EBADF(9): Bad 
file descriptor
access02   10  TFAIL  :  close(temp_file) failed: errno=EBADF(9): Bad 
file descriptor
access02   11  TFAIL  :  close(temp_file) failed: errno=EBADF(9): Bad 
file descriptor
access02   12  TFAIL  :  close(temp_file) failed: errno=EBADF(9): Bad 
file descriptor
access02   13  TFAIL  :  close(temp_file) failed: errno=EBADF(9): Bad 
file descriptor
access02   14  TFAIL  :  close(temp_file) failed: errno=EBADF(9): Bad 
file descriptor
access02   15  TFAIL  :  close(temp_file) failed: errno=EBADF(9): Bad 
file descriptor
.....
.....

access01:

access01    0  TWARN  :  tst_rmdir: 
rmobj(/mnt/nfsv4/ltp-pGpmqg8e6y/acc8wRrm5) failed: 
lstat(/mnt/nfsv4/ltp-pGpmqg8e6y/acc8wRrm5) failed; errno=2: No such file 
or directory
access01    0  TWARN  :  tst_brk: Invalid Type: 4. Using TBROK
access01 6621  TBROK  :  tmpdir_cleanup: no user cleanup function called 
before exiting
access01    0  TWARN  :  tst_rmdir: 
rmobj(/mnt/nfsv4/ltp-pGpmqg8e6y/acc8wRrm5) failed: 
lstat(/mnt/nfsv4/ltp-pGpmqg8e6y/acc8wRrm5) failed; errno=2: No such file 
or directory
access01    0  TWARN  :  tst_brk: Invalid Type: 4. Using TBROK
access01 6622  TBROK  :  tmpdir_cleanup: no user cleanup function called 
before exiting
access01    0  TWARN  :  tst_rmdir: 
rmobj(/mnt/nfsv4/ltp-pGpmqg8e6y/acc8wRrm5) failed: 
lstat(/mnt/nfsv4/ltp-pGpmqg8e6y/acc8wRrm5) failed; errno=2: No such file 
or directory
access01    0  TWARN  :  tst_brk: Invalid Type: 4. Using TBROK
access01 6623  TBROK  :  tmpdir_cleanup: no user cleanup function called 
before exiting
......
......

nfs mount option: (rw,vers=4,addr=192.168.1.15,clientaddr=192.168.1.137)
My first guess is that this has something to do with nfs silly 
renaming.  Any idea?

Thanks
Simon

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