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Date:      Mon, 22 Feb 2016 11:11:38 +0100
From:      =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= <roger.pau@citrix.com>
To:        =?UTF-8?Q?Gustau_P=c3=a9rez?= <gustau.perez@gmail.com>, =?UTF-8?Q?Gustau_P=c3=a9rez?= <gperez@entel.upc.edu>, FreeBSD XEN <freebsd-xen@freebsd.org>
Subject:   Re: Porting the block-iscsi hotplug script
Message-ID:  <56CADEDA.4050007@citrix.com>
In-Reply-To: <56CAC8CB.8030107@gmail.com>
References:  <553DEB97.5000300@entel.upc.edu> <5540A053.4080409@entel.upc.edu> <5540F3FC.80606@citrix.com> <5541FC8A.8080009@citrix.com> <5542365D.10403@entel.upc.edu> <55423ECD.6000404@citrix.com> <5556F21D.2050005@entel.upc.edu> <555EEFBA.5080902@citrix.com> <555EF542.3090002@citrix.com> <555F9B3F.1000600@entel.upc.edu> <55602512.1090702@citrix.com> <56C6FA2F.8040900@gmail.com> <56CAC8CB.8030107@gmail.com>

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El 22/2/16 a les 9:37, Gustau Pérez ha escrit:
> 
> 
> El 19/02/16 a les 12:19, Gustau Pérez ha escrit:
>>    I'm retaking this issue. I have an spare dual Xeon Intel(R) Xeon(R)
>> CPU E5-2420 box I can use for this. It currently uses 10.2-prerealse (as
>> of july 2015 more or less) but I can update it to head if necessary.
> 
>    Hi,
> 
>    Sorry, the box has two E5620 CPUs. I've checked in the ark and they
> support vt-d, but the xen kernel complains about the iommu (that is,
> vt-d support). Apparently iommu is there (acpidump -t | grep DMAR shows
> something). I tried booting forcing iommu [1] but no joy.

It might be that the IOMMU has an errata and Xen refuses to enable it.
Can you provide the serial output when you try to boot Xen + FreeBSD?
You might have to add console="com1,vga" to your xen_cmdline (although
AFAIK that's the default).

The command line looks fine IMHO.

>    On the other hand I'm still not sure whether the hotplug patches
> still need to be applied or not, I've checked them and I'd say that both
> the kernel and xen-tools need to be patched, am I right?

Yes, both series need to be applied. If you find issues applying them
ping me and I can rebase them if needed.

Roger.




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