Re: AutoFS5

[Jim Summers <jsummers@bachman.cs.ou.edu>]

Jeff Moyer wrote:
> Jeff Moyer <jmoyer@redhat.com> writes:
> 
>> Jim Summers <jsummers@bachman.cs.ou.edu> writes:
>>
>>> Hello All,
>>>
>>> Just hit a hiccup with autofs5.  Everything was going along fine and then had 
>>> a user call and say they could not get their home on a machine.  I did some 
>>> quick checking and some mounts were working and others not.  below is a bit of 
>>> the debug log and some other info.  the user, gerardo is the one who called 
>>> me.  entries in the debug log for him are the same as the tmac user.  in that 
>>> it get his ldap info tries to mount but then says it is already mounted and 
>>> then fails????
>>>
>>> client machine is FC6 hand compiled autofs version:
>>> autofs-5.0.1-20
>>> autofs-debuginfo-5.0.1-20
>>> with a patch from Ian.
>> What is the kernel version on the client?

2.6.22.1-32.fc6

> 
> I'm guessing that you have 2.6.22.1-13.fc6 or later installed.  These
> kernels include the "nosharecache" patch for NFS.  This patch can
> cause some mounts to fail with -EBUSY.  You can revert the
> nosharecache patch to get the old behaviour back.

is this accomplished with boot option similar to 'noacpi' or something like that?

> 
> Could you let us know what nfs mount options are used for your maps,
> though, as this should only bite you if you try to mount from the same
> server file system with different sets of mount options.  In other
> words, your first mount from the server should succeed, successive
> mount attempts of the same file system with differring options will
> fail.

options:

amarak:
-rw,rsize=4096,wsize=4096
here is tmac:
  -rw,actimeo=60,rsize=32768,wsize=32768,nocto
here is gerardo:
-rw,rsize=8192,wsize=8192
here is granville:
-rw,rsize=4096,wsize=4096
jsummers:
-rw,actimeo=60,rsize=32768,wsize=32768,nocto

some results:
[root@saturn ~]# su - jsummers
[jsummers@saturn ~]$ exit
logout
[root@saturn ~]# su - tmac
su: warning: cannot change directory to /home/tmac: No such file or directory
-bash-3.1$ exit
logout
[root@saturn ~]# su - granville
saturn@~> logout
[root@saturn ~]# su - amarack
saturn@~> logout
[root@saturn ~]# su - gerardo
su: warning: cannot change directory to /home/gerardo: No such file or directory
-bash-3.1$ logout

weird, huh?

thanks again

> 
> -Jeff
> 
> _______________________________________________
> autofs mailing list
> autofs@linux.kernel.org
> http://linux.kernel.org/mailman/listinfo/autofs