* live migration of HVM domUs with more than 32vcpus fails
@ 2017-06-22 13:57 Olaf Hering
2017-06-22 14:34 ` Konrad Rzeszutek Wilk
0 siblings, 1 reply; 9+ messages in thread
From: Olaf Hering @ 2017-06-22 13:57 UTC (permalink / raw)
To: xen-devel
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It seems that live migration of HVM domUs with more than 32 vcpus causes
a hang of the domU on the remote side. Both ping and 'xl console' show no
reaction.
This happens also with kernel-4.12. Is this a known bug?
Olaf
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* Re: live migration of HVM domUs with more than 32vcpus fails
2017-06-22 13:57 live migration of HVM domUs with more than 32vcpus fails Olaf Hering
@ 2017-06-22 14:34 ` Konrad Rzeszutek Wilk
2017-06-22 14:39 ` Olaf Hering
0 siblings, 1 reply; 9+ messages in thread
From: Konrad Rzeszutek Wilk @ 2017-06-22 14:34 UTC (permalink / raw)
To: Olaf Hering, ankur.a.arora; +Cc: xen-devel
On Thu, Jun 22, 2017 at 03:57:52PM +0200, Olaf Hering wrote:
> It seems that live migration of HVM domUs with more than 32 vcpus causes
> a hang of the domU on the remote side. Both ping and 'xl console' show no
> reaction.
> This happens also with kernel-4.12. Is this a known bug?
Ankur had some patches for more than 32 vCPUs.
>
> Olaf
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> https://lists.xen.org/xen-devel
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* Re: live migration of HVM domUs with more than 32vcpus fails
2017-06-22 14:34 ` Konrad Rzeszutek Wilk
@ 2017-06-22 14:39 ` Olaf Hering
2017-06-22 14:54 ` Boris Ostrovsky
0 siblings, 1 reply; 9+ messages in thread
From: Olaf Hering @ 2017-06-22 14:39 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk; +Cc: ankur.a.arora, xen-devel
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On Thu, Jun 22, Konrad Rzeszutek Wilk wrote:
> On Thu, Jun 22, 2017 at 03:57:52PM +0200, Olaf Hering wrote:
> > It seems that live migration of HVM domUs with more than 32 vcpus causes
> > a hang of the domU on the remote side. Both ping and 'xl console' show no
> > reaction.
> > This happens also with kernel-4.12. Is this a known bug?
>
> Ankur had some patches for more than 32 vCPUs.
Great, where can I get a copy?
Olaf
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* Re: live migration of HVM domUs with more than 32vcpus fails
2017-06-22 14:39 ` Olaf Hering
@ 2017-06-22 14:54 ` Boris Ostrovsky
2017-06-23 16:54 ` Olaf Hering
0 siblings, 1 reply; 9+ messages in thread
From: Boris Ostrovsky @ 2017-06-22 14:54 UTC (permalink / raw)
To: Olaf Hering, Konrad Rzeszutek Wilk; +Cc: ankur.a.arora, xen-devel
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On 06/22/2017 10:39 AM, Olaf Hering wrote:
> On Thu, Jun 22, Konrad Rzeszutek Wilk wrote:
>
>> On Thu, Jun 22, 2017 at 03:57:52PM +0200, Olaf Hering wrote:
>>> It seems that live migration of HVM domUs with more than 32 vcpus causes
>>> a hang of the domU on the remote side. Both ping and 'xl console' show no
>>> reaction.
>>> This happens also with kernel-4.12. Is this a known bug?
>> Ankur had some patches for more than 32 vCPUs.
> Great, where can I get a copy?
They are queued for 4.13.
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git for-linus-4.13
-boris
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* Re: live migration of HVM domUs with more than 32vcpus fails
2017-06-22 14:54 ` Boris Ostrovsky
@ 2017-06-23 16:54 ` Olaf Hering
2017-06-23 17:03 ` Boris Ostrovsky
0 siblings, 1 reply; 9+ messages in thread
From: Olaf Hering @ 2017-06-23 16:54 UTC (permalink / raw)
To: Boris Ostrovsky; +Cc: xen-devel, ankur.a.arora
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On Thu, Jun 22, Boris Ostrovsky wrote:
> They are queued for 4.13.
> git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git for-linus-4.13
This works for me. Thanks.
I assume there is no ready-to-pull variant for linux-4.4.x?
nm.
Olaf
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* Re: live migration of HVM domUs with more than 32vcpus fails
2017-06-23 16:54 ` Olaf Hering
@ 2017-06-23 17:03 ` Boris Ostrovsky
2017-06-23 19:40 ` Ankur Arora
2017-06-23 22:27 ` Ankur Arora
0 siblings, 2 replies; 9+ messages in thread
From: Boris Ostrovsky @ 2017-06-23 17:03 UTC (permalink / raw)
To: Olaf Hering; +Cc: xen-devel, ankur.a.arora
On 06/23/2017 12:54 PM, Olaf Hering wrote:
> On Thu, Jun 22, Boris Ostrovsky wrote:
>
>> They are queued for 4.13.
>> git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git for-linus-4.13
>
> This works for me. Thanks.
>
> I assume there is no ready-to-pull variant for linux-4.4.x?
> nm.
Not that I am aware of. Unless Ankur backported them to OL which is
(loosely) based on 4.1.
-boris
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* Re: live migration of HVM domUs with more than 32vcpus fails
2017-06-23 17:03 ` Boris Ostrovsky
@ 2017-06-23 19:40 ` Ankur Arora
2017-06-23 22:27 ` Ankur Arora
1 sibling, 0 replies; 9+ messages in thread
From: Ankur Arora @ 2017-06-23 19:40 UTC (permalink / raw)
To: Boris Ostrovsky, Olaf Hering; +Cc: xen-devel
On 2017-06-23 10:03 AM, Boris Ostrovsky wrote:
>
>
> On 06/23/2017 12:54 PM, Olaf Hering wrote:
>> On Thu, Jun 22, Boris Ostrovsky wrote:
>>
>>> They are queued for 4.13.
>>> git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git for-linus-4.13
>>
>> This works for me. Thanks.
>>
>> I assume there is no ready-to-pull variant for linux-4.4.x?
>> nm.
>
>
> Not that I am aware of. Unless Ankur backported them to OL which is
> (loosely) based on 4.1.
Sorry, no haven't backported this series at all.
Ankur
>
>
> -boris
>
> _______________________________________________
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: live migration of HVM domUs with more than 32vcpus fails
2017-06-23 17:03 ` Boris Ostrovsky
2017-06-23 19:40 ` Ankur Arora
@ 2017-06-23 22:27 ` Ankur Arora
2017-06-26 7:08 ` Olaf Hering
1 sibling, 1 reply; 9+ messages in thread
From: Ankur Arora @ 2017-06-23 22:27 UTC (permalink / raw)
To: Boris Ostrovsky, Olaf Hering; +Cc: xen-devel
On 2017-06-23 10:03 AM, Boris Ostrovsky wrote:
>
>
> On 06/23/2017 12:54 PM, Olaf Hering wrote:
>> On Thu, Jun 22, Boris Ostrovsky wrote:
>>
>>> They are queued for 4.13.
>>> git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git for-linus-4.13
>>
>> This works for me. Thanks.
>>
>> I assume there is no ready-to-pull variant for linux-4.4.x?
>> nm.
>
>
> Not that I am aware of. Unless Ankur backported them to OL which is
> (loosely) based on 4.1.
There was an earlier version of this patch by Konrad -- which takes
care of the migration failure: https://patchwork.kernel.org/patch/6768031/
Olaf, can you try this out?
Thanks
Ankur
>
>
> -boris
>
> _______________________________________________
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> Xen-devel@lists.xen.org
> https://lists.xen.org/xen-devel
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: live migration of HVM domUs with more than 32vcpus fails
2017-06-23 22:27 ` Ankur Arora
@ 2017-06-26 7:08 ` Olaf Hering
0 siblings, 0 replies; 9+ messages in thread
From: Olaf Hering @ 2017-06-26 7:08 UTC (permalink / raw)
To: Ankur Arora; +Cc: Boris Ostrovsky, xen-devel
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On Fri, Jun 23, Ankur Arora wrote:
> There was an earlier version of this patch by Konrad -- which takes
> care of the migration failure: https://patchwork.kernel.org/patch/6768031/
Thanks so much. That one actually works.
Olaf
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end of thread, other threads:[~2017-06-26 7:08 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-06-22 13:57 live migration of HVM domUs with more than 32vcpus fails Olaf Hering
2017-06-22 14:34 ` Konrad Rzeszutek Wilk
2017-06-22 14:39 ` Olaf Hering
2017-06-22 14:54 ` Boris Ostrovsky
2017-06-23 16:54 ` Olaf Hering
2017-06-23 17:03 ` Boris Ostrovsky
2017-06-23 19:40 ` Ankur Arora
2017-06-23 22:27 ` Ankur Arora
2017-06-26 7:08 ` Olaf Hering
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