[coreboot] bug report on dbm690t

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Tue Feb 2 12:48:23 CET 2010


On 02.02.2010 05:08, Bao, Zheng wrote:
> The VGABIOS reports exception if the coreboot is built in Buildtarget
> way:
>   

Is this problem new? And did it happen with your ExtINT bugfix applied?


> Check fallback/payload
> CBFS: follow chain: fff272c0 + 38 + 15a88 + align -> fff3cd80
> Check fallback/coreboot_ram
> CBFS: follow chain: fff3cd80 + 38 + 1178f + align -> fff4e580
> Check pci1002,791f.rom
> In cbfs, rom address for PCI: 01:05.0 = fff4e5b8
> PCI Expansion ROM, signature 0xaa55, INIT size 0xda00, data ptr 0x01b0
> PCI ROM Image, Vendor 1002, Device 791f,
> PCI ROM Image,  Class Code 030000, Code Type 00
> copying VGA ROM Image from fff4e5b8 to 0xc0000, 0xda00 bytes
> Executing Initialization Vector...
> int15 (AX=4e08) vector at ff859
> Unknown INT15 function 4e08!
> int15 (AX=4e08) vector at ff859
> Unknown INT15 function 4e08!
> int15 (AX=4e08) vector at ff859
> Unknown INT15 function 4e08!
> Unexpected Exception: 13 @ 10:0001ff2f - Halting
> Code: 0 eflags: 00010002
> eax: 00000040 ebx: ffff42a4 ecx: 000ca0d9 edx: 02062020
> edi: 0000001f esi: 000397f0 ebp: 0000c000 esp: 0003bae4
>   

On my Asus M2A-VM (which is very similar to the AMD DBM690T, but it has
RS690 instead of RS690M) the ROM execution works in r4681 (didn't test
anything newer yet).

Regards,
Carl-Daniel

-- 
Developer quote of the year:
"We are juggling too many chainsaws and flaming arrows and tigers."





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