Re: User space automounter problems after upgrade to 2.6.25-rc9

[Martin Knoblauch <spamtrap@knobisoft.de>]

----- Original Message ----
> From: Benny Halevy <bhalevy@panasas.com>
> To: Martin Knoblauch <spamtrap@knobisoft.de>
> Cc: Trond Myklebust <trond.myklebust@fys.uio.no>; linux-kernel@vger.kernel.org; am-utils <am-utils@am-utils.org>
> Sent: Tuesday, April 15, 2008 4:29:58 PM
> Subject: Re: User space automounter problems after upgrade to 2.6.25-rc9
> 
> On Apr. 15, 2008, 16:58 +0300, Martin Knoblauch  wrote:
> > ----- Original Message ----
> >> From: Trond Myklebust 
> >> To: Martin Knoblauch 
> >> Cc: linux-kernel@vger.kernel.org; am-utils 
> >> Sent: Tuesday, April 15, 2008 2:57:26 PM
> >> Subject: Re: User space automounter problems after upgrade to 2.6.25-rc9
> >>
> >>
> >> On Tue, 2008-04-15 at 04:28 -0700, Martin Knoblauch wrote:
> >>> Hi,
> >>>
> >>>  after booting a newly built 2.6.25-rc9 kernel, I see the following messages 
> 
> >> and the user space automounter fails to work. Last good kernel for me is 
> 2.6.24, 
> >> as -rc9 is my first attempt at 2.6.25. Extremely sorry for being late to the 
> >> game :-(
> >>> [   13.776876] Invalid hostname "pid4302@lpsdm60:/home" in NFS lock request
> >>> [   11.996757] Invalid hostname "pid4302@lpsdm60:/home" in NFS lock request
> >>> [   14.504927] Invalid hostname "pid4302@lpsdm60:/home" in NFS lock request
> >>> [   13.636860] Invalid hostname "pid4302@lpsdm60:/home" in NFS lock request
> >>> [   14.504927] Invalid hostname "pid4302@lpsdm60:/home" in NFS lock request
> >>> [   13.636860] Invalid hostname "pid4302@lpsdm60:/home" in NFS lock request
> >>> [   14.505079] Invalid hostname "pid4302@lpsdm60:/home" in NFS lock request
> >>> [   11.996757] Invalid hostname "pid4302@lpsdm60:/home" in NFS lock request
> >>> [   13.636860] Invalid hostname "pid4302@lpsdm60:/home" in NFS lock request
> >>> [   12.688801] Invalid hostname "pid4302@lpsdm60:/soft" in NFS lock request
> >>>
> >>> am-utils version is 6.1.5, config is attached
> >> Already reported in:
> >>    http://bugzilla.kernel.org/show_bug.cgi?id=10349
> >> and
> >>    https://bugzilla.am-utils.org/show_bug.cgi?id=612
> >>
> >> The problem is due to known bugs in the am-utils mount code (no,
> >> 'pid4302@lpsdm60:/soft' is not and has never been a valid server
> >> hostname).
> >>
> > 
> >  I always wondered, but never asked :-) Apparently the kernel did never care 
> until recently.
> > 
> >> The workaround should be to turn off locking by adding the 'nolock'
> >> mount flag.
> >>
> > 
> >  Not sure what kind of side effects that will have. Probably better to stay at 
> 2.6.24 and wait for a fix in am-utils.
> 
> FWIW, autofs works for me (Fedora 7, 2.6.25-rc*).
> 

 good to know, but not really an option here. The customer in question has several hundred workstations and servers using am-utils and the map-management is completely out of my hands.


Cheers
Martin