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From: Avi Kivity <avi@redhat.com>
To: Michael Tokarev <mjt@tls.msk.ru>
Cc: Zachary Amsden <zamsden@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Arjan Koers <0h61vkll2ly8@xutrox.com>,
	kvm@vger.kernel.org, Glauber Costa <glommer@redhat.com>,
	Andre Przywara <andre.przywara@amd.com>,
	jeremy@xensource.com
Subject: Re: 2.6.35-rc1 regression with pvclock and smp guests
Date: Sun, 03 Oct 2010 10:22:58 +0200	[thread overview]
Message-ID: <4CA83D62.8060406@redhat.com> (raw)
In-Reply-To: <4CA83BEC.9020701@msgid.tls.msk.ru>

  On 10/03/2010 10:16 AM, Michael Tokarev wrote:
> I just booted this same guest using kvm-0.12.5 - using that one
> guest does not report unstable tsc, yet does not list it in the
> available_clocksources.  It also shows time jumps:
>
> ...
> [0;0/0:    0.000000] Detected 3217.424 MHz processor.
> [0;0/0:    0.006666] Calibrating delay loop (skipped) preset value.. 6437.96 BogoMIPS (lpj=10724746)
> [0;0/0:    0.006666] pid_max: default: 32768 minimum: 301
> [0;0/0:    0.006666] Mount-cache hash table entries: 512
> [0;0/0:    0.006765] Initializing cgroup subsys ns
> ...
> [0;0/0:    0.029999] Booting Node   0, Processors  #1 Ok.
> [1;0/0:    0.006666] Initializing CPU#1
> [1;0/0:    0.006666] kvm-clock: cpu 1, msr 0:1e0a0c1, secondary cpu clock
> [0;0/0:    0.058342] Brought up 2 CPUs
> ...

Most likely it's still using jiffies while the clocks are being set up.

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.


  reply	other threads:[~2010-10-03  8:23 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
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 [this message]
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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