Xen devel - Jun 2008 - Is there anybody trying Xen VT-d on X48 chipset?

hi,

I am trying Xen unstable tip on X48 motherboard but I got a xen BUG in
xen/drivers/passthrough/vtd/iommu.c:496.

Can anybody take a look at this problem?

BTW, I don''t know how to collect the log so just take a picture by
cell phone. Can you show me how to collect the log also?

It looks that I can''t send message with attachment to the mailing
list? Currently, what I have is just the screenshot of the BUG.

Thanks,
Neo

-- 
I would remember that if researchers were not ambitious
probably today we haven''t the technology we are using!

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Hi Neo,

Can you please apply the following patch and send the log and your BIOS
information back?

You can setup a serial port to collect the debug information.

Thanks.

diff -r d434a7dfe02d xen/drivers/passthrough/vtd/dmar.c
--- a/xen/drivers/passthrough/vtd/dmar.c        Fri Jun 27 13:40:21 2008 +0800
+++ b/xen/drivers/passthrough/vtd/dmar.c        Sun Jun 29 21:07:00 2008 +0800
@@ -423,6 +423,9 @@ acpi_parse_one_rmrr(struct acpi_dmar_ent
         return -ENOMEM;
     memset(rmrru, 0, sizeof(struct acpi_rmrr_unit));

+    printk("+++ acpi_parse_one_rmrr: %lx, %lx\n",
+           rmrr->base_address, rmrr->end_address);
+
     rmrru->base_address = rmrr->base_address;
     rmrru->end_address = rmrr->end_address;
     dev_scope_start = (void *)(rmrr + 1);

>-----Original Message-----
>From: xen-devel-bounces@lists.xensource.com
>[mailto:xen-devel-bounces@lists.xensource.com] On Behalf Of Neo Jia
>Sent: Sunday, June 29, 2008 6:49 AM
>To: xen-devel@lists.xensource.com; xen-users@lists.xensource.com
>Subject: [Xen-devel] Is there anybody trying Xen VT-d on X48 chipset?
>
>hi,
>
>I am trying Xen unstable tip on X48 motherboard but I got a xen BUG in
>xen/drivers/passthrough/vtd/iommu.c:496.
>
>Can anybody take a look at this problem?
>
>BTW, I don''t know how to collect the log so just take a picture by
>cell phone. Can you show me how to collect the log also?
>
>It looks that I can''t send message with attachment to the mailing
>list? Currently, what I have is just the screenshot of the BUG.
>
>Thanks,
>Neo
>
>--
>I would remember that if researchers were not ambitious
>probably today we haven''t the technology we are using!
>
>_______________________________________________
>Xen-devel mailing list
>Xen-devel@lists.xensource.com
>http://lists.xensource.com/xen-devel
_______________________________________________
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Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel