[SerialICE] Reset troubles with Coreboot image

Myles Watson mylesgw at gmail.com
Wed Jun 30 23:57:54 CEST 2010


On Wed, Jun 30, 2010 at 3:47 PM, Arne Georg Gleditsch
<arne.gleditsch at numascale.com> wrote:
> On 30. juni 2010 00:55, Myles Watson wrote:
>>
>> My s2895 doesn't do a soft reset correctly with the coreboot image,
>> but it does with the factory image.  Have you seen that problem?  It
>> seems strange, because the "Reset triggered" message still shows up,
>> along with "Rebooting the emulated CPU", but then I get Readback
>> errors.  I patched SerialICE to redo the handshake on reset, but that
>> doesn't help.
>>
>> I think I'm getting closer, but if someone has already seen something
>> similar or has suggestions...
>
> I saw something similar with the HP board I ported, turned out to be the
> IPMI BMC hijacking the serial port at soft reset.  Not sure exactly what
> conditions triggered it, but I got it sorted by disabling the IPMI serial
> port CLI using ipmitool or something similar.  Let me know if this sounds at
> all likely with your setup, and I'll dig some more.

I don't think my board has IPMI.  It seems to be triggered by changing
the HyperTransport widths.  If I leave it in 8-bit mode it doesn't
quit.  Unfortunately that's not OK, so I'm still trying to narrow it
down.

Thanks,
Myles



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