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Re: [Xen-users] Xen 4.2 Windows 8 Issues

Only thing I would hesitate over is it isn't a release version and may
still have bugs in it.  As for that patch, it's over 3 years old.  I
would imagine it's in the version you're running. I would see what
version it was written for and what you're running and maybe a little
research to see if the patch was accepted.  I think your best bet
would be either stable or, if you don't mind helping the developers
debug it, the 4.3.0-RC6 you mentioned.


On Wed, Oct 23, 2013 at 1:55 PM, John Wargo <wargo.john25@xxxxxxxxx> wrote:
> On 10/23/2013 08:15 AM, Shane Johnson wrote:
> John,
> Some other things I have thought of while reviewing your problem.  I
> don't remember where I read it but I remember reading that someone
> couldn't get passthrough working during install and only by waiting
> till Windows 7 I believe it was was fully installed then they
> installed the driver and then enabled passthrough.  Another thing you
> might want to try is reducing the amount of RAM you are throwing at
> the DomU to below 4G I think it is.  I know there are some posts on
> the forums about people having issues with this and if I remember
> right there is a solution for running more memory but I don't know
> exactly what it is.
> Shane
> On Wed, Oct 23, 2013 at 4:53 AM, John Wargo <wargo.john25@xxxxxxxxx> wrote:
> On 10/22/2013 08:37 PM, Shane Johnson wrote:
> On Tue, Oct 22, 2013 at 4:30 PM, John Wargo <wargo.john25@xxxxxxxxx>
> wrote:
> On 10/22/2013 02:51 PM, Shane Johnson wrote:
> <snip>
>       (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0090, fault
> address = 0xffffffc0
> [truncated output, only first 10 iterations are shown...]
> What is the best way to go about solving this problem?
> As always just ask for more info,
> -John
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxx
> http://lists.xen.org/xen-users
> It seemed to fix the irq error, however I'm still getting the
> errors.
> I'll go through the debugging page on the wiki, and see what I can't dig
> up..
> -John
> John,
> I know when I have need help before, I was asked to include the
> verbose output of the create command and the log files mentioned in
> the submitting a bug section. From looking at those logs,  those on
> here who know a heck of a lot more that I do where able to spot what
> my problem was.  If you can't find it with the steps on the debugging
> wiki that may be the next best step.  Also some details on your
> hardware and a file or screen print of your xl list command would also
> probably be beneficial.
> Good luck
> Shane
> After some debugging, here is what I've been able to come up with, if
> there's an issue with attachments, just let me know how to properly post
> the
> logs.
> Included in the zip :
> create.xen     - The result of "xl create -d ./win8.cfg"
> dmesg-boot.xen - The result of "xl dmesg" immediately after boot
> dmesg-win8.xen - The result of "xl dmesg" after failing to install
> windows 8
> grub           - My grub configuration file (/etc/default/grub)
> info.xen       - The result of "xl info"
> win8.cfg       - The configuration file I'm using for windows 8
> -John
> Sorry John,
> Memory isn't as good as it used to be.  I went back and read the
> entire conversation again and I think something clicked.  (Or maybe
> just broke).  Try disabling viridian.  I just remembered when I loaded
> Win8.1 just to test it out to see if it was bad as everyone said, I
> ran into something similar.  If I remember correctly I completely
> disabled viridian or at least until I had 8.1 up and running.
> Like I said I'm not an expert on this.
> Looking over your logs I don't see anything that stands out.
> Hopefully something here helps.  If not hopefully one of the guru's
> will step in.
> Just out of curiosity, Is there is reason for disabling the IOMMU
> remapping in your grub file?
> Hmm, I disabled the VGA passthrough, and it all seems to work fine, I'm
> going to try passing my GPU
> through now that it's installed, but I doubt that it'll work.
> I'm using an XFX Radeon 7850 for passthrough, it's reported to work, so I
> think that it's the issues
> that I've been having with my AMD FX-6300 processor and IOMMU..
> If anybody knows of how to fix these issues, that would be great..
> -John
> I was browsing the wiki earlier today, and I found this :
> http://old-list-archives.xenproject.org/archives/html/xen-devel/2010-10/txtfLpL6CdMGC.txt
> It's a source-code patch for xen. How do I apply it?
> Also, I'm thinking about building Xen-4.3.0-RC6 from source, is there a
> reason why I shouldn't try to see if a fix has been implemented there?
> Thanks,
> -John

Shane D. Johnson
IT Administrator
Rasmussen Equipment

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