imap0# ./nfstest 4444 /var/spool/mail/s/c/scorpio/dovecot.out5
Info: Connected: client
Info: O_EXCL works
Info: Testing attribute cache..
Info: Attr cache flush fchown(-1, -1): OK
Info: Attr cache flush fchown(uid, -1): OK
Info: Attr cache flush fchmod(mode): OK
Info: Attr cache flush chown(-1, -1): OK
Info: Attr cache flush chown(uid, -1): OK
Info: Attr cache flush chmod(mode): OK
Info: Testing write flushing..
Info: Write flush no caching: failed
Info: Write flush fcntl(shared): failed
Info: Write flush fcntl(exclusive): failed
Info: Write flush flock(shared): failed
Info: Write flush flock(exclusive): failed
Info: Write flush reopen: OK
Info: Testing data cache..
Info: data cache: Reading EOF requires attribute cache flush
Info: data cache (no caching): failed
Info: data cache (attr cache): OK
Error: fcntl(setlk, read) failed: Operation not supported
Info: data cache (fcntl(shared)): failed
Error: fcntl(setlk, write) failed: Operation not supported
Info: data cache (fcntl(exclusive)): failed
Info: data cache (flock(shared)): failed
Info: data cache (flock(exclusive)): failed
Info: data cache (dotlock): failed
Info: data cache (O_DIRECT): failed