Re: Lock in with 2.4.1 and NFS

[Neil Brown]

On Wednesday February 7, [e-mail] wrote:
> 
> Hi,
> I have a strange problem on one of our server.
> I have 2.4.1 patched with ACLs 0.7.5 (from acl.bestbits.at) and some RAID +
> LVM volumes.
> At regular interval, NFS stops working (nfsd stops) and a stop/start of the
> NFS service doesn't work. 
> The NFS service stop blocks in "exportfs -auv" when trying to unmount a
> client working apparently well. One time
> it was a solaris 2.6 client, another time it was a linux 2.4 machine.
> Any help appreciated.
> Thanks
> -jec
> 
> PS: I'm not in the kernel list. Please CC
> 

This scenario sounds a lot like one of the nfsd threads has oopsed
while holding a readlock on the export table, and so exportfs cannot
get a write lock.

Could you check your kernel logs for an Oops message?

NeilBrown

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> Jean-Eric Cuendet
> Linkvest SA
> Av des Baumettes 19, 1020 Renens Switzerland
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