With a self compiled HEAD kernel with aic7xxx included I get

Unable to handle kernel paging request at virtual address 00100104
 printing eip:
c02b8034
*pde = 00593001
Oops: 0002 [#1]
SMP
Modules linked in:
CPU:    0
EIP:    0060:[<c02b8034>]    Not tainted VLI
EFLAGS: 00010246   (2.6.13)
EIP is at attribute_container_unregister+0x34/0x60
eax: 00100100   ebx: f7d97a24   ecx: 00000000   edx: 00200200
esi: 00000000   edi: 00000000   ebp: 00000000   esp: c1a1ff98
ds: 007b   es: 007b   ss: 0068
Process swapper (pid: 1, threadinfo=c1a1e000 task=c19dca20)
Stack: f7d97a00 00000000 c031c683 f7d97a24 c057f970 c058a8e5 f7d97a00 c056f0c5
       f7d97a00 c0542a63 00000000 c0573a30 c04d0c00 c1a1e000 00000000 c010039f
       00000020 ffffffff ffffffff c0100310 c0100e85 00000000 00000000 00000000
Call Trace:
 [<c031c683>] spi_release_transport+0x13/0x26
 [<c056f0c5>] ahd_linux_init+0x95/0xa0
 [<c0542a63>] do_initcalls+0x23/0xc0
 [<c0573a30>] sock_init+0x30/0x40
 [<c010039f>] init+0x8f/0x1c0
 [<c0100310>] init+0x0/0x1c0
 [<c0100e85>] kernel_thread_helper+0x5/0x10
Code: 0c 89 74 24 04 be f0 ff ff ff e8 58 53 17 00 f0 ff 0d 84 d7 4b c0 0f 88 06
05 00 00 8d 43 08 39 43 08 75 198b 53 04 31 f6 8b 03 <89> 50 04 89 02 c7 43 04
00 02 20 00 c7 03 00 01 10 00 f0 ff 05
 <0>Kernel panic - not syncing: Attempted to kill init!
                                                                            

at boot. The system has no Adaptec, so it looks like the fallback
path is broken again (didn't we have this previously?)