Re: [Xen-devel] rochester and Debian buster

[Julien Grall <julien.grall@xxxxxxx>]

Hi Ian,

On 24/10/2019 16:47, Ian Jackson wrote:
> We discussed on irc the problems I have been having trying to get
> buster's released kernel to run on the rochesters, which is wanted to
> upgrade osstest to buster (which is currently Debian stable).
>
> Unfortunately our previous conversations don't seem to have been
> recorded anywhere.  Let's try at least to write things down now.
>
> The symptom is that the machine thinks the network link is down, and
> no network stuff happens, so the installer doesn't work.  (I don't
> think I have checked at the switch end whether the link is actually
> up.)
I have just remembered that we are not using the on-board network card but 
instead a USB dongle. Looking at the log, it looks like the kernel found the dongle:
Oct 24 10:57:31.499085 [   14.421064] asix 3-1.3:1.0 eth5: register 'asix' at 
usb-0000:00:11.0-1.3, ASIX AX88772B USB 2.0 Ethernet, 00:50:b6:22:00:67
But I am not sure which eth interface is linked to and how you found out the 
network is down.
> You suggested that maybe adding
>    iommu.passthrough=1
> to the kernel command line might help.  But it hasn't.
>
> I have a memory of discussing the next steps and I think we discussed
> upgrading the firmware.  If I remember rightly we agreed (with
> Juergen) that upgrading the firmware on one of the two rochester
> machines would be an acceptable risk.  Can we file a ticket to have
> that done by our onsite technician ?
I am not entirely sure whether this would help because I have had report that 
Debian Buster has been installed successfully on Thunder-X.
Anyway, updating the firmware to something more recent would be good. We are 
currently using T48, and the most recent seems to be F02 [1].
It is not entirely clear to me what's the difference between the Txx and Fxx 
release. I have asked some help and will let you know.
Cheers,

[1] https://www.gigabyte.com/ARM-Server/R150-T61-rev-110/support#support-dl-bios


--
Julien Grall

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