<div dir="ltr"><br><div class="gmail_extra">On Fri, Jun 15, 2018 at 2:14 PM, qtux <span dir="ltr"><<a href="mailto:mail@qtux.eu" target="_blank">mail@qtux.eu</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span class="gmail-"><br>
>> Coreboot did work well, but froze sometimes when booting during the<br>
>> assigning resources step (more or less exactly after assigning the PCI<br>
>> 14.3 or PNP 002e.2 device, which happen to be close to each other inside<br>
>> the devicetree). I had to remove the power cord in order to be able to<br>
>> boot again (or to get the next random freeze...). Rarely, after such an<br>
>> recovery, I have got flooded by IOMMU warnings in Linux which would only<br>
>> disappear after another reboot.<br>
> <br>
> Ah, that resume reboot-loop issue. The bit that tells to do S3 resume<br>
> is a sticky register backed up by Vstb rail. With [2] you should not<br>
> need to do full power-cycling at least. We should extend this work to<br>
> other platforms.<br>
> <br>
<br>
</span>I am not sure whether the term resume reboot-loop applies for my issue<br>
(side note: I used a serial connection to monitor the boot process):<br>
<br>
Rebooting (via holding the power button for some seconds) after<br>
encountering a freeze (aka stopping at the assign resource step)<br>
resulted into having no output from serial at all. I could repeat this<br>
with no effect at all, the computer seemed to be dead. Only removing the<br>
power cord could solve the issue.<br>
<br>
This issue could occur when rebooting but even when cold booting.<br>
<span class="gmail-"></span></blockquote><div><br></div><div>One of these boards had LPC related lockups. I think the solution was to disable serial console or to set console to low loglevel.<br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Answers are inside the text.<br>
I forgot to mention that I am currently on commit 793ae846e8.<br></blockquote><div> </div><div>Let's take the parent of that, commit 4a027e6e -- the one you refer to only appears on gerrit review branch.<br></div></div><div class="gmail_quote"><br></div><div class="gmail_quote">Kyösti<br></div></div></div>