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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CA744DF0.1F790%keir.xen@gmail.com \
--to=keir.xen@gmail.com \
--cc=Ian.Jackson@eu.citrix.com \
--cc=wei.wang2@amd.com \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.