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

[Javi Polo]

El 07/12/11 14:49, Javi Polo escribió:
>>> [6235083.656954] BUG: unable to handle kernel NULL pointer dereference
>>>> this should not happen. It looks like we are trying to look up 
>>>> something
>>>> that is 24 (hex) bytes into a structure. Does the fs have posix acls
>>>> enabled or selinux or something else using xattrs?
>>
>> Nope, at least as far as I know. As I dont usually use ubuntu, I have 
>> checked to see if it had selinux enabled by default, or some ACLs 
>> related thing, but it seems it's not ....
>>
>
> Anyone could hint me with this matter?
> I'm not using selinux nor xattrs nor posix acls, just a plain gfs2 
> filesystem with 3 journals ...
>

I finally manage to get it working by rolling back to an ubuntu 
linux-2.6.32-33-virtual kernel. I guess there's a problem in nfs 
modules, not in gfs2, because it crashed pretty much the same while 
testing with OCFS2

thanks you all :)

-- 
Javi Polo
Administrador de Sistemas
Tel  93 734 97 70
Fax 93 734 97 71
jpolo at wtransnet.com