SCSI Raid card problems

Hi,

I'm running reiser4 on 2.6.11-mm4 at the moment. I compiled 2.6.13-mm1 (and subsequently a few more kernel versions in-between) as a replacement, only to find out that it blows up in my face when the root fs is due to be mounted:

VFS: Cannot open root device "801" or unknown-block Unable to mount root fs on unknown-block (8,1)

The server has a NetRaid-1Si card set in raid-5 mode

lspci -v shows

02:01.1 I2O: Intel Corporation 80960RP [i960RP Microprocessor] (rev 05) (prog-if 01)
Subsystem: Hewlett-Packard Company HP NetRAID-1Si
Flags: bus master, fast Back2Back, medium devsel, latency 32, IRQ 17 Memory at fe000000 (32-bit, prefetchable) [size=4M]
Expansion ROM at <unassigned> [disabled] [size=32K]
Capabilities: [80] Power Management version 2

dmesg output

scsi2:Found MegaRAID controller at 0xe081a000, IRQ:17
megaraid: [F :B ] detected 1 logical drives.
megaraid: channel[0] is raid.
scsi2 : LSI Logic MegaRAID F 254 commands 16 targs 4 chans 7 luns
scsi2: scanning scsi channel 0 for logical drives.
Vendor: MegaRAID Model: LD0 RAID0 26031R Rev: F
Type: Direct-Access ANSI SCSI revision: 02

Everything works fine on 2.6.11-mm4
Was anything changed in the legacy driver that would cause this?

Thank you,

Yiannis.

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