I get the following oops trying to load atp870u on 2.6.0-test5:

<--->

irq 5: nobody cared!
handlers:
[<d9a29000>] (atp870u_intr_handle+0x0/0x810 [atp870u])
Disabling IRQ #5

Message from syslogd@fourier at Sun Sep 14 05:08:09 2003 ...
fourier kernel: Disabling IRQ #5
Unable to handle kernel NULL pointer dereference at virtual address 00000484
*pde = 00000000
Oops: 0000 [#1]
CPU:    0
EIP:    0060:[<d9a2c0ce>]    Not tainted
EFLAGS: 00010202
EIP is at atp870u_detect+0x12e/0x930 [atp870u]
eax: 00000001   ebx: ffffffff   ecx: 00000001   edx: 00000370
esi: 0000e03b   edi: 00000033   ebp: cb768800   esp: cc91fbfc
ds: 007b   es: 007b   ss: 0068
Process modprobe (pid: 4206, threadinfo=cc91e000 task=c7909880)
Stack: c029ece0 0000e000 00000040 d9a2ce60 cb768800 00000177 00000001 00000009
       cb7689ac 0000e03a c01f0483 cc91e000 00000001 0000e000 00000282 07050190
       0000e000 c01efdd0 0000e020 c032b204 00200010 c01e7407 c032b2b0 00000176
Call Trace:
 [<c01f0483>] __ide_dma_count+0x13/0x20
 [<c01efdd0>] dma_timer_expiry+0x0/0x90
 [<c01e7407>] __ide_do_rw_disk+0xc7/0x6b0
 [<c01d4a7f>] as_remove_queued_request+0x7f/0x110
 [<c0190c82>] __delay+0x12/0x20
 [<c01d4d8a>] as_move_to_dispatch+0x8a/0x130
 [<c01dc630>] start_request+0x160/0x270
 [<c01dc971>] ide_do_request+0x201/0x380
 [<c01d5148>] as_next_request+0x38/0x50
 [<c0119650>] schedule+0x1c0/0x3e0
 [<c01cf125>] generic_unplug_device+0x75/0x80
 [<c01cf29a>] blk_run_queues+0x7a/0xb0
 [<c0135d18>] __lock_page+0xb8/0xd0
 [<c011af50>] autoremove_wake_function+0x0/0x50
 [<c013bd14>] do_page_cache_readahead+0xf4/0x170
 [<c011af50>] autoremove_wake_function+0x0/0x50
 [<c0135d5c>] find_get_page+0x2c/0x60
 [<c0136e87>] filemap_nopage+0x277/0x300
 [<c0143513>] do_no_page+0x1b3/0x340
 [<c0143894>] handle_mm_fault+0xd4/0x170
 [<c01180b1>] do_page_fault+0x251/0x451
 [<c0124303>] __mod_timer+0x123/0x170
 [<c0139b01>] buffered_rmqueue+0xd1/0x170
 [<c0149ea9>] map_area_pmd+0x69/0xa0

<--->

ksymoops output is attached. Hardware used:

00:0a.0 SCSI storage controller: Artop Electronic Corp AEC6712D SCSI (rev 02)
        Subsystem: Artop Electronic Corp AEC6712D SCSI
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32
        Interrupt: pin A routed to IRQ 5
        Region 0: I/O ports at e000 [size=64]
        Capabilities: <available only to root>

-- 
Carlos Valdivia Yagüe <valyag@dat.etsit.upm.es>