[LinuxBIOS] pc partitoin magic number not found?

Jon Dufresne jon.dufresne at gmail.com
Wed Dec 13 21:13:10 CET 2006


Thanks, Uwe.

I used the 82801dbm as a starting ground. I've already had to change a
few things such as device IDs.

I know something somewhere isn't right because I get a kernel panic
anytime I modprobe a kernel module that relates to a device in the
southbridge. Since I'm responding I'll post the kernel panic in case
someone has an idea. This example is trying to bring up the sound
device. If I remove all module loading during init, I can get to a
single user prompt.

Anyway thanks for the tip.

Unable to handle kernel paging request at virtual address 019b2005
 printing eip:
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: snd_intel8x0 snd_ac97_codec snd_pcm_oss
snd_mixer_oss snd_pcm snd_timer snd_page_alloc snd_mpu401_uart
snd_rawmidi snd_seq_device snd soundcore floppy ext3 jbd
CPU:    0
EIP:    0060:[<c0129fe0>]    Not tainted VLI
EFLAGS: 00010202   (2.6.9-42.EL)
EIP is at __request_resource+0x24/0x41
eax: 019b2001   ebx: c1ab0460   ecx: c036849c   edx: c0004014
esi: f02021ff   edi: f0202000   ebp: f0202000   esp: c1a1de80
ds: 007b   es: 007b   ss: 0068
Process modprobe (pid: 1186, threadinfo=c1a1d000 task=c1a2c170)
Stack: c1ab0460 c036849c c1ab047c c012a27c dff4c800 00000200 000001ff 00000002
       dff4c800 c1a7dc24 c01f02a0 c1a7dc24 00000002 c1a7dc24 dff4c800 f885d270
       c01f033c c1a7dc00 dfce2400 dff4c800 f8858c73 00000001 c1a7dc00 c1a7dc00
Call Trace:
 [<c012a27c>] __request_region+0x52/0x74
 [<c01f02a0>] pci_request_region+0x82/0xf2
 [<c01f033c>] pci_request_regions+0x14/0x37
 [<f8858c73>] snd_intel8x0_create+0x104/0x403 [snd_intel8x0]
 [<f885903c>] snd_intel8x0_probe+0xca/0x21a [snd_intel8x0]
 [<c01f1b09>] pci_device_probe_static+0x2a/0x3d
 [<c01f1b37>] __pci_device_probe+0x1b/0x2c
 [<c01f1b63>] pci_device_probe+0x1b/0x2d
 [<c0252157>] bus_match+0x27/0x45
 [<c0252220>] driver_attach+0x37/0x66
 [<c02525d5>] bus_add_driver+0x77/0x97
 [<c02529f0>] driver_register+0x51/0x58
 [<c01f1d21>] pci_register_driver+0x85/0xa1
 [<f881400a>] alsa_card_intel8x0_init+0xa/0x39 [snd_intel8x0]
 [<c01410b6>] sys_init_module+0xe9/0x1d0
 [<c0318d93>] syscall_call+0x7/0xb
Code: 84 36 c0 5b 89 d0 c3 57 89 c1 56 53 8b 7a 04 89 d3 8b 72 08 39
fe 72 2c 3b 79 04 72 27 3b 71 08 77 22 8d 51 18 8b 02 85 c0 74 05 <39>
70 04 76 0c 89 43 14 31 c0 89 1a 89 4b 10 eb 08 39 78 08
 <0>Fatal exception: panic in 5 seconds
Kernel panic - not syncing: Fatal exception


Thanks for the tip.

On 12/13/06, Uwe Hermann <uwe at hermann-uwe.de> wrote:
> Hi Jon,
>
> you noted that you work on the Intel 82801DB:
> http://linuxbios.org/index.php?title=Supported_Chipsets_and_Devices&curid=1002&diff=3747&oldid=3739&rcid=1296
>
> Please have a look at the 82801DBM code before, that's at the very least
> very similar, maybe it even already supports the 82801DB, too(?)
>
>
> Uwe.
> --
> http://www.hermann-uwe.de  | http://www.holsham-traders.de
> http://www.crazy-hacks.org | http://www.unmaintained-free-software.org
>
>
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