2.5.43 and the VIA vt8233 IDE controller.

[Jason Williams <jason_williams@suth.com>]

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I am suspecting something is amist with the via controller code in
2.5.43, because my promise controller goes through the same routines
just fine.  I started to try to back trace everything to hunt down the
culperate myself, but alas, I couldn't find the cause.  So if anyone can
give me a hand here, I would be very grateful.  What follows is the
bottom snippet of kernel output.  If you require anything further, let
me know I will send it.

Jason




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VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: VIA vt8233 (rev 00) IDE UDMA100 controller on pci00:11.1
    ide1: BM-DMA at 0x9008-0x900fUnable to handle kernel NULL pointer dereference at virtual address 00000650
 printing eip:
c024a52b
*pde = 00000000
Oops: 0000

CPU:    0
EIP:    0060:[<c024a52b>]    Not tainted
EFLAGS: 00010202
EIP is at ide_iomio_dma+0xbb/0x1c0
eax: 00000000   ebx: c052cbb4   ecx: c03aa274   edx: 00000001
esi: c052cbc4   edi: 00009008   ebp: 00000008   esp: dffcbeb4
ds: 0068   es: 0068   ss: 0068
Process swapper (pid: 1, threadinfo=dffca000 task=dffc8040)
Stack: c0380d6f 00009008 00000008 c052cbc4 c1526000 c052cbb4 c03e7a50 c052cbb4
       c024a687 c052cbb4 00009008 00000008 00000089 c04195dd c1526000 00009008
       c0418a58 c052cbb4 00009008 00000008 c02488be c052cbb4 00009008 00000004
Call Trace:
 [<c024a687>] ide_setup_dma+0x27/0x380
 [<c02488be>] ide_hwif_setup_dma+0x10e/0x150
 [<c0248bce>] do_ide_setup_pci_device+0x16e/0x330
 [<c0248dbb>] ide_setup_pci_device+0x2b/0x80
 [<c02388e8>] via_init_one+0x38/0x40
 [<c010507a>] init+0x3a/0x160
 [<c0105040>] init+0x0/0x160
 [<c0105641>] kernel_thread_helper+0x5/0x14

Code: 8b 80 50 06 00 00 89 83 4c 06 00 00 c7 04 24 77 0d 38 c0 e8
 <0>Kernel panic: Attempted to kill init!