* Strange Error Regarding Grant Tables
@ 2007-02-27 12:48 Jayson Vantuyl
2007-02-27 14:21 ` Keir Fraser
0 siblings, 1 reply; 5+ messages in thread
From: Jayson Vantuyl @ 2007-02-27 12:48 UTC (permalink / raw)
To: xen-devel
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I asked this on the users list but didn't get a response. Maybe you
guys can help.
When I do "xm dmesg", I see a number of errors like these:
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) mm.c:566:d35 Non-privileged (35) attempt to map I/O space 000000f0
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) mm.c:566:d36 Non-privileged (36) attempt to map I/O space 000000f0
(XEN) mm.c:566:d37 Non-privileged (37) attempt to map I/O space 000000f0
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)
I'm not positive, but they appear to coincide with a lot of block
traffic. Otherwise the system seems to work, although has erratic
slowdowns. Is this bad?
--
Jayson Vantuyl
Systems Architect
Engine Yard
jvantuyl@engineyard.com
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_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Strange Error Regarding Grant Tables
2007-02-27 12:48 Strange Error Regarding Grant Tables Jayson Vantuyl
@ 2007-02-27 14:21 ` Keir Fraser
2007-02-28 7:29 ` Jayson Vantuyl
0 siblings, 1 reply; 5+ messages in thread
From: Keir Fraser @ 2007-02-27 14:21 UTC (permalink / raw)
To: Jayson Vantuyl, xen-devel
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On 27/2/07 12:48, "Jayson Vantuyl" <jvantuyl@engineyard.com> wrote:
> I'm not positive, but they appear to coincide with a lot of block traffic.
> Otherwise the system seems to work, although has erratic slowdowns. Is this
> bad?
It¹s not really a good sign. What Xen version do you use? What dom0 and
domU?
-- Keir
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_______________________________________________
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http://lists.xensource.com/xen-devel
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Strange Error Regarding Grant Tables
2007-02-27 14:21 ` Keir Fraser
@ 2007-02-28 7:29 ` Jayson Vantuyl
2007-02-28 8:05 ` Keir Fraser
0 siblings, 1 reply; 5+ messages in thread
From: Jayson Vantuyl @ 2007-02-28 7:29 UTC (permalink / raw)
To: Keir Fraser; +Cc: xen-devel
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Dom0:
Linux ey00-00 2.6.16.33-xen0 #1 SMP Sat Jan 27 01:21:23 PST 2007
x86_64 Dual Core AMD Opteron(tm) Processor 265 AuthenticAMD GNU/Linux
DomU:
Linux ey00-s00000 2.6.16.33-xenU-domU #3 SMP Sat Jan 6 03:09:15 PST
2007 x86_64 Dual Core AMD Opteron(tm) Processor 265 AuthenticAMD GNU/
Linux
On Feb 27, 2007, at 8:21 AM, Keir Fraser wrote:
>
>
>
> On 27/2/07 12:48, "Jayson Vantuyl" <jvantuyl@engineyard.com> wrote:
>
>> I'm not positive, but they appear to coincide with a lot of block
>> traffic. Otherwise the system seems to work, although has erratic
>> slowdowns. Is this bad?
>
> It’s not really a good sign. What Xen version do you use? What dom0
> and domU?
>
> -- Keir
--
Jayson Vantuyl
Systems Architect
Engine Yard
jvantuyl@engineyard.com
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_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Strange Error Regarding Grant Tables
2007-02-28 7:29 ` Jayson Vantuyl
@ 2007-02-28 8:05 ` Keir Fraser
2007-03-01 1:16 ` Jayson Vantuyl
0 siblings, 1 reply; 5+ messages in thread
From: Keir Fraser @ 2007-02-28 8:05 UTC (permalink / raw)
To: Jayson Vantuyl; +Cc: xen-devel
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The messages must come from the network receive path (packet transfer from
dom0 to domU). Do you notice poor network performance or outages? Are your
filesystems or block devices network mounted?
-- Keir
On 28/2/07 07:29, "Jayson Vantuyl" <jvantuyl@engineyard.com> wrote:
> Dom0:
>
> Linux ey00-00 2.6.16.33-xen0 #1 SMP Sat Jan 27 01:21:23 PST 2007 x86_64 Dual
> Core AMD Opteron(tm) Processor 265 AuthenticAMD GNU/Linux
>
> DomU:
>
> Linux ey00-s00000 2.6.16.33-xenU-domU #3 SMP Sat Jan 6 03:09:15 PST 2007
> x86_64 Dual Core AMD Opteron(tm) Processor 265 AuthenticAMD GNU/Linux
>
> On Feb 27, 2007, at 8:21 AM, Keir Fraser wrote:
>
>>
>>
>>
>> On 27/2/07 12:48, "Jayson Vantuyl" <jvantuyl@engineyard.com> wrote:
>>
>>
>>> I'm not positive, but they appear to coincide with a lot of block traffic.
>>> Otherwise the system seems to work, although has erratic slowdowns. Is this
>>> bad?
>>>
>>
>> It¹s not really a good sign. What Xen version do you use? What dom0 and
>> domU?
>>
>> -- Keir
>>
>
>
> --
> Jayson Vantuyl
> Systems Architect
> Engine Yard <http://www.engineyard.com>
> jvantuyl@engineyard.com
>
>
>
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
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_______________________________________________
Xen-devel mailing list
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http://lists.xensource.com/xen-devel
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Strange Error Regarding Grant Tables
2007-02-28 8:05 ` Keir Fraser
@ 2007-03-01 1:16 ` Jayson Vantuyl
0 siblings, 0 replies; 5+ messages in thread
From: Jayson Vantuyl @ 2007-03-01 1:16 UTC (permalink / raw)
To: Keir Fraser; +Cc: xen-devel
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Network performance appears okay, although I really am not positive.
Our filesystems are not network mounted but we do use GFS (which has
associated network traffic for clustering).
The block devices in the Dom0 are ATA-Over-Ethernet, so they do touch
the networking code, but it doesn't go through the hypervisor (i.e.
not to the DomUs).
On Feb 28, 2007, at 2:05 AM, Keir Fraser wrote:
> The messages must come from the network receive path (packet
> transfer from dom0 to domU). Do you notice poor network performance
> or outages? Are your filesystems or block devices network mounted?
>
> -- Keir
>
> On 28/2/07 07:29, "Jayson Vantuyl" <jvantuyl@engineyard.com> wrote:
>
>> Dom0:
>>
>> Linux ey00-00 2.6.16.33-xen0 #1 SMP Sat Jan 27 01:21:23 PST 2007
>> x86_64 Dual Core AMD Opteron(tm) Processor 265 AuthenticAMD GNU/Linux
>>
>> DomU:
>>
>> Linux ey00-s00000 2.6.16.33-xenU-domU #3 SMP Sat Jan 6 03:09:15
>> PST 2007 x86_64 Dual Core AMD Opteron(tm) Processor 265
>> AuthenticAMD GNU/Linux
>>
>> On Feb 27, 2007, at 8:21 AM, Keir Fraser wrote:
>>
>>>
>>>
>>>
>>> On 27/2/07 12:48, "Jayson Vantuyl" <jvantuyl@engineyard.com> wrote:
>>>
>>>
>>>> I'm not positive, but they appear to coincide with a lot of
>>>> block traffic. Otherwise the system seems to work, although has
>>>> erratic slowdowns. Is this bad?
>>>>
>>>
>>> It’s not really a good sign. What Xen version do you use? What
>>> dom0 and domU?
>>>
>>> -- Keir
>>>
>>
>>
>> --
>> Jayson Vantuyl
>> Systems Architect
>> Engine Yard <http://www.engineyard.com>
>> jvantuyl@engineyard.com
>>
>>
>>
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
>
--
Jayson Vantuyl
Systems Architect
Engine Yard
jvantuyl@engineyard.com
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_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
^ permalink raw reply [flat|nested] 5+ messages in thread
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2007-02-27 12:48 Strange Error Regarding Grant Tables Jayson Vantuyl
2007-02-27 14:21 ` Keir Fraser
2007-02-28 7:29 ` Jayson Vantuyl
2007-02-28 8:05 ` Keir Fraser
2007-03-01 1:16 ` Jayson Vantuyl
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