From: Keir Fraser <keir.xen@gmail.com>
To: Ian Jackson <Ian.Jackson@eu.citrix.com>, Wei Wang2 <wei.wang2@amd.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: AMD IOMMU related boot failure due to page coalescing c/s 23767
Date: Fri, 19 Aug 2011 17:29:20 +0100 [thread overview]
Message-ID: <CA744DF0.1F790%keir.xen@gmail.com> (raw)
In-Reply-To: <20046.35926.517204.166312@mariner.uk.xensource.com>
On 19/08/2011 17:16, "Ian Jackson" <Ian.Jackson@eu.citrix.com> wrote:
> Wei Wang2 writes ("Re: AMD IOMMU related boot failure due to page coalescing
> c/s 23767"):
>> Oh, that is another issue that I haven't got time to look at...
>> you could use iommu=no-perdev-vector-map to workaround this.
>
> Err. Right. Is there perhaps some other recent changeset that needs
> fixing or reverting ? That would make five ...
You could try nobbling c/s 23754. E.g., change the static initialiser for
iommu_amd_perdev_vector_map (defined in drivers/passthrough/iommu.c,
somewhat oddly) to 0.
-- Keir
> Ian.
next prev parent reply other threads:[~2011-08-19 16:29 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-19 13:19 AMD IOMMU related boot failure due to page coalescing c/s 23767 Ian Jackson
2011-08-19 13:55 ` Wei Wang2
2011-08-19 13:58 ` Logging xen dmesg John Backes
2011-08-19 14:24 ` Pasi Kärkkäinen
2011-08-19 14:25 ` Keir Fraser
2011-08-19 14:55 ` AMD IOMMU related boot failure due to page coalescing c/s 23767 Wei Wang2
2011-08-19 15:57 ` Ian Jackson
2011-08-19 15:59 ` Ian Jackson
2011-08-19 16:12 ` Wei Wang2
2011-08-19 16:16 ` Ian Jackson
2011-08-19 16:29 ` Keir Fraser [this message]
2011-08-19 16:30 ` Ian Jackson
2011-08-22 11:29 ` George Dunlap
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