Xen users - Nov 2013 - HVM crash system on AMD APU A8-6600K

My system reboots when I trying to start any HVM domU. This problem
was described   earlier:
http://lists.xen.org/archives/html/xen-devel/2013-08/msg01395.html

My system is openSUSE 13.1 RC2  with Xen 4.3.0
My hardware is

ASRock  FM2A75 Pro4
AMD A8-6600K APU
Gigabyte Radeon 7850
8 Gb DDR3 1600Mhz

I have setup serial console and could provide logs your requested.
Attached logs from xl dmesg, dom0 dmesg and serial console with:
loglvl=all iommu=debug,verbose apic_verbosity=debug cpuinfo
console=com1 com1=115200,8n1,pci




_______________________________________________
Xen-users mailing list
Xen-users@lists.xen.org
http://lists.xen.org/xen-users

On Wed, 2013-11-06 at 23:48 +0900, Vitaliy Tomin wrote:
> My system reboots when I trying to start any HVM domU. This problem
> was described   earlier:
> http://lists.xen.org/archives/html/xen-devel/2013-08/msg01395.html
> 
> My system is openSUSE 13.1 RC2  with Xen 4.3.0
> My hardware is
> 
> ASRock  FM2A75 Pro4
> AMD A8-6600K APU
> Gigabyte Radeon 7850
> 8 Gb DDR3 1600Mhz
> 
> I have setup serial console and could provide logs your requested.
> Attached logs from xl dmesg, dom0 dmesg and serial console with:
> loglvl=all iommu=debug,verbose apic_verbosity=debug cpuinfo
> console=com1 com1=115200,8n1,pci
Sadly the logs are not terribly informative, at least not to my
relatively IOMMU ignorant eye :-(

        linux-b52d login: (XEN) AMD-Vi: Share p2m table with iommu: p2m table =
0x100077
        ===== machine created === 
        (XEN) AMD-Vi: Share p2m table with iommu: p2m table = 0x1c566c
        ==== crash === 
        
There''s no further output I take it? (i.e. you''ve added those
===== tags
without removing anything, sorry have to ask...).

You could try adding "no-sharept" to your iommu command line option.
If
that helps it would indicate an issue with the PT sharing option.

Whether or not that option helps I think it would be worth posting to
xen-devel, CC-ing the AMD IOMMU maintainer (Suravee Suthikulpanit
<suravee.suthikulpanit@amd.com) and perhaps the generic IOMMU folks
(Xiantao Zhang <xiantao.zhang@intel.com>, Jan Beulich
<jbeulich@suse.com>)

Ian.

I''ve nothing removed from my serial log, just added comments to show
when crash happens. I''ve tried to run xen with no-sharep option using
following options line:
loglvl=all iommu=no-sharept,debug,verbose apic_verbosity=debug cpuinfo
console=com1 com1=115200,8n1,pci

And got same crash on HVM guest run. The only difference this not
happen immediately after hvm start but after 1-2 minutes of HVM domen
working.

On Tue, Nov 12, 2013 at 6:32 PM, Ian Campbell <Ian.Campbell@citrix.com>
wrote:
> On Wed, 2013-11-06 at 23:48 +0900, Vitaliy Tomin wrote:
>> My system reboots when I trying to start any HVM domU. This problem
>> was described   earlier:
>> http://lists.xen.org/archives/html/xen-devel/2013-08/msg01395.html
>>
>> My system is openSUSE 13.1 RC2  with Xen 4.3.0
>> My hardware is
>>
>> ASRock  FM2A75 Pro4
>> AMD A8-6600K APU
>> Gigabyte Radeon 7850
>> 8 Gb DDR3 1600Mhz
>>
>> I have setup serial console and could provide logs your requested.
>> Attached logs from xl dmesg, dom0 dmesg and serial console with:
>> loglvl=all iommu=debug,verbose apic_verbosity=debug cpuinfo
>> console=com1 com1=115200,8n1,pci
>
> Sadly the logs are not terribly informative, at least not to my
> relatively IOMMU ignorant eye :-(
>
>         linux-b52d login: (XEN) AMD-Vi: Share p2m table with iommu: p2m
table = 0x100077
>         ===== machine created ==>         (XEN) AMD-Vi: Share p2m table
with iommu: p2m table = 0x1c566c
>         ==== crash ==>
> There''s no further output I take it? (i.e. you''ve added
those ===== tags
> without removing anything, sorry have to ask...).
>
> You could try adding "no-sharept" to your iommu command line
option. If
> that helps it would indicate an issue with the PT sharing option.
>
> Whether or not that option helps I think it would be worth posting to
> xen-devel, CC-ing the AMD IOMMU maintainer (Suravee Suthikulpanit
> <suravee.suthikulpanit@amd.com) and perhaps the generic IOMMU folks
> (Xiantao Zhang <xiantao.zhang@intel.com>, Jan Beulich
> <jbeulich@suse.com>)
>
> Ian.
>