megaraid_mm not showing up in 2.6.25.2

["Espen Fjellvær Olsen" <espen@mrfjo.org>]

Hi!
We are experiencing that megaraid_mm wont register on a 2.6.25.2 on our 
production server.
The module are compiled into the kernel, but /dev/megamon0 is not 
created, and we dont find any signs in eg. /proc/devices so a manual 
mknod would seem not to work.

We didnt experience this problem on 2.6.24.2 which were our previous kernel.

02:03.0 RAID bus controller: LSI Logic / Symbios Logic MegaRAID (rev 01)
    Subsystem: Dell MegaRAID 518 DELL PERC 4/DC RAID Controller
    Flags: bus master, 66MHz, slow devsel, latency 64, IRQ 27
    Memory at ff5f0000 (32-bit, prefetchable) [size=64K]
    Expansion ROM at fc8f0000 [disabled] [size=64K]
    Capabilities: [80] Power Management version 2

 From kernel log:
megaraid cmm: 2.20.2.7 (Release Date: Sun Jul 16 00:01:03 EST 2006)
megaraid: 2.20.5.1 (Release Date: Thu Nov 16 15:32:35 EST 2006)
megaraid: probe new device 0x1000:0x1960:0x1028:0x0518: bus 2:slot 3:func 0
megaraid: fw version:[352B] bios version:[1.10]

--
Best Regards
Espen Fjellvær Olsen
Drift@tihlde