[coreboot] H8DME-2 woes, hints?

Joe Korty joe.korty at ccur.com
Thu May 6 16:32:00 CEST 2010

On Wed, May 05, 2010 at 04:26:15PM -0400, Myles Watson wrote:
> On Wed, May 5, 2010 at 2:06 PM, Joe Korty <joe.korty at ccur.com>wrote:
>> Naturally I am having troubles. I suspect that as a newbie I am probably
>> doing something stupid. But then I've heard that mb manufacturers like
>> to change things around without notice, so maybe I'm doing things right
>> and what was once a supported mb, no longer is.

> It looks like you're doing things right.  It's dying really early, though.

>>  When booting coreboot, nothing happens for about 45 seconds.
>>  Then the fans speed up to high and some messages start appearing
>>  on the serial line. These messages print rather slowly (maybe
>>  1 second/message). They are:
>>    coreboot-4.0-r5521M Wed May 5 10:53:42 EDT 2010 starting...
>>    *sysinfo range: [000cf000,000cf730]
>>    bsp_apicid=00
>>    Enabling routing table for node 00 done.
>>    Enabling SMP settings
>>    (0,1) link=00

> You could try an earlier revision.  I can't think of what would slow
> it down that much.

>>  I put some printk's in setup_smb2, the crashing routine. They show
>>  that setup_temp_row is called by setup_smb2 but never returns.

> Since it takes so long to get there, I think you'll have better luck
> trying to figure out what's wrong before that.

>>  fgrep 'Video ROM' /proc/iomem
>>  # displays "000c0000-000cafff : Video ROM"
>>  sudo dd if=/dev/mem of=/tmp/vgabios.bin bs=4k skip=$((0xc0)) count=$((0xb))
>>  # --- figure out the Video ROM's PCI Vendor,Device ID
>>  # --- I _think_ the numbers I want are the second set shown, ie "15d9:1611".
> You want the first set.  The second set is Supermicro's board ID.

Hi Myles,
Thanks for the pointers.  I'm going to try some earlier releases of coreboot
and if I can find one that lacks the slowdown.  If that fails I am going
to have to figure out how to debug the earliest stages of coreboot, when
nothing is visible and little can be saved.


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