Re: auotfs v4

[Greg Bradner <gregb@rhythm.com>]

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I am using RH 7.3 with the 2.4.20 kernel. It doen't have the patch. But 
I don't need it at the moment. I need to figure out why my /proc/mounts 
file is filling up with the same mount points.

My problem is a NetApp. Not because it's a NetApp, rather I believe it's 
the way volumes are exported.
 > showmount -e fs7
Export list for fs7:
/vol/vol0/systems   (everyone)
/vol/vol0/muse      (everyone)
/vol/vol0/avidcache (everyone)
/vol/vol0           (everyone)

What I see in /proc/mounts:
fs7:/vol/vol0/muse /nfs/hosts3/fs7/vol/vol0/muse nfs 
rw,v2,rsize=8192,wsize=8192,hard,intr,udp,lock,addr=fs7 0 0
fs7:/vol/vol0/avidcache /nfs/hosts3/fs7/vol/vol0/avidcache nfs 
rw,v2,rsize=8192,wsize=8192,hard,intr,udp,lock,addr=fs7 0 0
fs7:/vol/vol0/systems /nfs/hosts3/fs7/vol/vol0/systems nfs 
rw,v2,rsize=8192,wsize=8192,hard,intr,udp,lock,addr=fs7 0 0

But I don't see:
/vol/vol0

I believe autofs is expiring and unmounting fs7:/vol/vol0 and getting 
confused as what to do with the directories under that root vol.


Ian Kent wrote:

>On Thu, 6 Nov 2003, Mike Waychison wrote:
>
>  
>
>>Greg Bradner wrote:
>>
>>    
>>
>>>Any ideas what 'mount table full' means?
>>>Nov  6 10:08:44 linn automount[27555]: >> NFSv3 not supported!
>>>Nov  6 10:08:44 linn automount[27555]: >> mount table full
>>>Nov  6 10:08:44 linn automount[27555]: mount(nfs): nfs: mount failure 
>>>fs7:/vol/vol0/systems/celia/utils on /celia/utils/
>>>Nov  6 10:09:15 linn automount[1899]: attempting to mount entry 
>>>/misc/hsm_cache
>>>Nov  6 10:09:15 linn automount[27589]: >> NFSv3 not supported!
>>>Nov  6 10:09:15 linn automount[27589]: >> mount table full
>>>Nov  6 10:09:15 linn automount[27589]: mount(nfs): nfs: mount failure 
>>>fs8:/vol/vol0/hsm_cache on /misc/hsm_cache/
>>>
>>>Everything works fine after a reboot.
>>>
>>>      
>>>
>>It means that you have more than 256 mounts that don't have a 
>>block-device back-end.  These include NFS, autofs, procfs, sysfs...
>>
>>This is a known limitation in linux 2.4.  You may want to try a patch 
>>like the following:
>>
>>http://people.redhat.com/zaitcev/linux/linux-2.4.19-pre7-unmaj.diff
>>
>>
>>    
>>
>
>Most of the RedHat packaged kernels have this patch.
>
>What distro are you using?
>What version of autofs?
> 
>  
>

-- 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rhythm & Hues
5404 Jandy Place
Los Angeles, CA 90066
Voice: 310 448-7763
Fax:   310 448-7600
gregb@rhythm.com


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