From: Zachary Amsden <zamsden@redhat.com>
To: Arjan Koers <0h61vkll2ly8@xutrox.com>
Cc: Michael Tokarev <mjt@tls.msk.ru>,
kvm@vger.kernel.org, Marcelo Tosatti <mtosatti@redhat.com>,
Avi Kivity <avi@redhat.com>, Glauber Costa <glommer@redhat.com>,
Andre Przywara <andre.przywara@amd.com>
Subject: Re: 2.6.35-rc1 regression with pvclock and smp guests
Date: Mon, 11 Oct 2010 10:47:16 -1000 [thread overview]
Message-ID: <4CB377D4.2020401@redhat.com> (raw)
In-Reply-To: <4CB02F08.3090207@xutrox.com>
On 10/08/2010 10:59 PM, Arjan Koers wrote:
> On 2010-10-09 08:29, Michael Tokarev wrote:
> ...
>
>> The result is that no released linux kernel boots
>> in smp in kvm, which is a linux virtual machine.
>> That's irony, isn't it?
>>
>> I wonder how distributions (which are almost all based
>> on 2.6.32 nowadays) will deal with the issue.. ;)
>>
> It looks like Debian solved it on their 2.6.32 guest by
> reverting the commit that makes it hang:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=588426
>
That's not a wise choice, the commit is needed to prevent clocks going
backwards. It then caused some fallout issues with clobbers, which I
believe hpa fixed, but there were several rounds of it.
Glauber, perhaps, has a better idea of what patches are needed for the
host side kvmclock. I've mostly been working on the server side.
To solve the wider range of problems, distributions converging on 2.6.32
will need all of the fixes backported, both server and host.
next prev parent reply other threads:[~2010-10-11 20:47 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-22 12:53 2.6.35-rc1 regression with pvclock and smp guests Andre Przywara
2010-07-25 8:44 ` Avi Kivity
2010-07-26 8:47 ` Andre Przywara
2010-07-26 18:59 ` Arjan Koers
2010-07-27 21:00 ` Arjan Koers
2010-07-28 10:37 ` Avi Kivity
2010-07-31 0:34 ` Arjan Koers
2010-07-31 1:38 ` Zachary Amsden
2010-07-31 11:50 ` Arjan Koers
2010-07-31 2:39 ` Zachary Amsden
2010-07-31 11:53 ` Arjan Koers
2010-07-31 16:36 ` Arjan Koers
2010-07-31 19:45 ` Arjan Koers
2010-07-31 23:55 ` Zachary Amsden
2010-08-02 14:43 ` Glauber Costa
2010-08-02 16:16 ` Arjan Koers
2010-08-02 18:07 ` Glauber Costa
2010-08-02 20:26 ` Zachary Amsden
2010-08-02 21:10 ` Glauber Costa
2010-08-02 21:35 ` Arjan Koers
2010-08-03 0:00 ` Zachary Amsden
2010-09-28 11:16 ` Michael Tokarev
2010-09-29 8:12 ` Michael Tokarev
2010-09-29 8:28 ` Avi Kivity
2010-09-29 9:17 ` Michael Tokarev
2010-09-29 9:19 ` Michael Tokarev
2010-09-29 19:26 ` Arjan Koers
2010-09-30 7:55 ` Michael Tokarev
2010-09-30 9:59 ` Michael Tokarev
2010-09-30 13:54 ` Zachary Amsden
2010-09-30 15:12 ` Michael Tokarev
2010-09-30 15:32 ` Zachary Amsden
2010-09-30 18:49 ` Arjan Koers
2010-09-30 19:05 ` Marcelo Tosatti
2010-09-30 20:16 ` Arjan Koers
2010-09-30 23:02 ` Michael Tokarev
2010-09-30 23:07 ` Michael Tokarev
2010-10-01 1:13 ` Zachary Amsden
2010-10-02 5:35 ` Zachary Amsden
2010-10-02 7:35 ` Michael Tokarev
2010-10-02 7:40 ` Michael Tokarev
2010-10-02 7:50 ` Michael Tokarev
2010-10-02 16:10 ` Arjan Koers
2010-10-02 20:26 ` Michael Tokarev
2010-10-02 23:42 ` Zachary Amsden
2010-10-03 8:27 ` Michael Tokarev
2010-10-08 0:12 ` Arjan Koers
2010-10-08 2:47 ` Zachary Amsden
2010-10-08 22:06 ` Marcelo Tosatti
2010-10-09 1:10 ` Arjan Koers
2010-10-09 2:27 ` Zachary Amsden
2010-10-09 6:29 ` Michael Tokarev
2010-10-09 8:59 ` Arjan Koers
2010-10-11 20:47 ` Zachary Amsden [this message]
2010-10-13 12:18 ` Glauber Costa
2010-10-10 1:20 ` Arjan Koers
2010-10-11 17:53 ` Anthony Liguori
2010-10-11 18:36 ` Marcelo Tosatti
2010-10-09 2:29 ` Zachary Amsden
2010-10-10 1:26 ` Arjan Koers
2010-10-20 20:47 ` Arjan Koers
2010-10-09 7:59 ` Michael Tokarev
2010-10-09 8:31 ` Michael Tokarev
2010-10-02 21:55 ` Zachary Amsden
2010-10-03 8:16 ` Michael Tokarev
2010-10-03 8:22 ` Avi Kivity
2010-10-03 8:30 ` Michael Tokarev
2010-07-27 10:03 ` Avi Kivity
2010-07-27 11:49 ` Andre Przywara
2010-07-27 12:06 ` Avi Kivity
2010-07-27 12:21 ` Andre Przywara
2010-07-27 12:34 ` Avi Kivity
2010-07-27 13:48 ` Andre Przywara
2010-07-27 13:58 ` Avi Kivity
2010-07-27 14:55 ` Andre Przywara
2010-07-27 21:51 ` Andre Przywara
2010-07-28 3:00 ` Zachary Amsden
2010-07-28 7:55 ` Andre Przywara
2010-07-28 12:25 ` Andre Przywara
2010-07-30 22:54 ` Zachary Amsden
2010-08-02 10:12 ` Andre Przywara
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