[Linux-cluster] GFS2 + NFS crash BUG: Unable to handle kernel NULL pointer deference

[Alan Brown]

Colin Simpson wrote:
> But I guess you are also telling me that file locking between the two
> wouldn't be helping here either? 

Correct.

NFSd (v2/3) doesn't pass client locks to the filesystem, nor does it 
respect locks set by other processes.

It has a number of other foibles - try setting up a large number of 
services where you have one NFS export per service (eg, multiple disk 
mounts) and there's a good chance the exports will fail at startup 
because they all try to run at once and end up scribbling all over each 
other's export list (There's a name for this kind of failure mode, which 
I can't remember)