opal_path_nfs test fails with (timed-out) autofs mount

[gkatev]

Hi, I'm encountering a failure with the tests/util/opal_path_nfs test. If I'm interpreting everything correctly, it looks like it is the test that is problematic and not opal_path_nfs().

Cherry-picking a specific mount from the list for demontration purposes:

$ ./opal_path_nfs 
...
get_mounts: dirs[48]:/p/arch fs:autofs nfs:No
...
test(): file:/p/arch bool:0
 Failure : Mismatch: input "/p/arch", expected:0 got:1
...

From what I can tell this filesystem indeed is nfs (mounted via autofs).

$ mount | grep /p/arch
/etc/auto.deep on /p/arch type autofs (...)

$ grep /p/arch /etc/mtab
/etc/auto.deep /p/arch autofs ...

$ grep /p/arch /etc/auto.deep
/p/arch			-rw	   <IP addr>:/arch/.

$ nfsstat -m | grep /p/arch
/p/arch from <IP addr>:/arch

Actually, when all offending mounts have been recently accessed, the test does succeed! When I can no longer see them in nfsstat -m, it is then that the test fails.

When the test is successful, I see something like:

get_mounts: dirs[48]:/p/arch fs:autofs nfs:No
...
get_mounts: already know dir[48]:/p/arch
get_mounts: dirs[48]:/p/arch fs:nfs4 nfs:Yes
...
test(): file:/p/arch bool:1

When it is not successful, only the first part, and not the "already know" part appers in the output.