From: Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
To: Steven Rostedt <rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org>
Cc: "Kevin Shanahan"
<kmshanah-biM/RbsGxha6c6uEtOJ/EA@public.gmane.org>,
"Avi Kivity" <avi-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
"Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>,
"Linux Kernel Mailing List"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"Kernel Testers List"
<kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"Kevin Shanahan"
<kmshanah-IiIpDuVlHfMLO379cgqW9odd74u8MsAO@public.gmane.org>,
"Mike Galbraith" <efault-Mmb7MZpHnFY@public.gmane.org>,
"Peter Zijlstra"
<a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org>,
"Frédéric Weisbecker"
<fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [Bug #12465] KVM guests stalling on 2.6.28 (bisected)
Date: Tue, 20 Jan 2009 19:39:30 +0100 [thread overview]
Message-ID: <20090120183930.GA5048@elte.hu> (raw)
In-Reply-To: <alpine.DEB.1.10.0901201251180.2681-f9ZlEuEWxVcI6MkJdU+c8EEOCMrvLtNR@public.gmane.org>
* Steven Rostedt <rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org> wrote:
> > hm, that's a significant regression then. The latency tracer used to
> > measure the highest-prio task in the system - be that RT or non-rt.
>
> Well, it is a regression from what was in -rt yes. But not from what
> ever was in mainline.
indeed, it is not a regression, it is worse: it makes the mainline version
utterly useless in 99% of the cases ... This really needs to be fixed.
Ingo
next prev parent reply other threads:[~2009-01-20 18:39 UTC|newest]
Thread overview: 133+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-19 21:41 2.6.29-rc2-git1: Reported regressions 2.6.27 -> 2.6.28 Rafael J. Wysocki
2009-01-19 21:41 ` [Bug #11849] default IRQ affinity change in v2.6.27 (breaking several SMP PPC based systems) Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12159] 2.6.28-rc6-git1 -- No sound produced from Intel HDA ALSA driver Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12061] snd_hda_intel: power_save: sound cracks on powerdown Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12160] networking oops after resume from s2ram (2.6.28-rc6) Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12208] uml is very slow on 2.6.28 host Rafael J. Wysocki
2009-01-26 11:35 ` Miklos Szeredi
2009-01-19 21:45 ` [Bug #12263] Sata soft reset filling log Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12209] oldish top core dumps (in its meminfo() function) Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12224] journal activity on inactive partition causes inactive harddrive spinup Rafael J. Wysocki
2009-01-20 13:03 ` Theodore Tso
2009-01-19 21:45 ` [Bug #12260] Regression due to commit 2b80848e3818fb1c (p54usb: support LM87 firmwares) Rafael J. Wysocki
2009-01-20 22:11 ` [PATCH -stable] p54usb: fix traffic stalls / packet drop Christian Lamparter
[not found] ` <200901202311.11854.chunkeey-S0/GAf8tV78@public.gmane.org>
2009-01-20 22:36 ` Rafael J. Wysocki
2009-01-20 22:39 ` Greg KH
[not found] ` <20090120223957.GA6088-l3A5Bk7waGM@public.gmane.org>
2009-01-20 23:56 ` John W. Linville
[not found] ` <20090120235626.GA3094-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
2009-01-21 14:03 ` Christian Lamparter
2009-01-19 21:45 ` [Bug #12265] FPU emulation broken in 2.6.28-rc8 ? Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12391] Processor does not go below C2 state until usb.autosuspend is enabled Rafael J. Wysocki
2009-01-27 10:27 ` Pavel Machek
2009-01-19 21:45 ` [Bug #12264] i915: switching from kwin in opengl mode to a VT then back to x11, x11 freezes Rafael J. Wysocki
2009-01-20 18:13 ` Caleb Cushing
2009-01-19 21:45 ` [Bug #12337] ~100 extra wakeups reported by powertop Rafael J. Wysocki
2009-01-20 9:38 ` Alberto Gonzalez
2009-01-19 21:45 ` [Bug #12393] debugging in dosemu causes lots of 'scheduling while atomic' Rafael J. Wysocki
2009-01-20 9:58 ` Michal Suchanek
2009-01-19 21:45 ` [Bug #12396] hwinfo problem since 2.6.28 Rafael J. Wysocki
2009-01-26 14:00 ` Beschorner Daniel
2009-01-19 21:45 ` [Bug #12395] 2.6.28-rc9: oprofile regression Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12404] Oops in 2.6.28-rc9 and -rc8 -- mtrr issues / e1000e Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12401] 2.6.28 regression: xbacklight broken on ThinkPad X61s Rafael J. Wysocki
2009-01-20 7:30 ` Tino Keitel
2009-01-19 21:45 ` [Bug #12403] TTY problem on linux-2.6.28-rc7 Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12407] Kernel 2.6.28 regression: Hang after hibernate Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12405] oops in __bounce_end_io_read under kvm Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12408] Funny problem with 2.6.28: Kernel stalls Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12406] 2.6.28 thinks that my PS/2 mouse is a touchpad Rafael J. Wysocki
2009-01-20 1:45 ` Arjan Opmeer
[not found] ` <20090120014507.GA1557-ZZpm67l/2hWBldXiawXZ59HuzzzSOjJt@public.gmane.org>
2009-01-20 9:19 ` Dmitry Torokhov
[not found] ` <200901200119.59851.dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2009-01-22 6:29 ` Alexander E. Patrakov
2009-01-19 21:45 ` [Bug #12409] NULL pointer dereference at get_stats() Rafael J. Wysocki
2009-01-21 16:18 ` Frederik Deweerdt
2009-01-24 0:39 ` Tetsuo Handa
2009-02-07 2:34 ` Tetsuo Handa
[not found] ` <200902071133.AJJ09378.MOHLFFtOSOVQFJ-JPay3/Yim36HaxMnTkn67Xf5DAMn2ifp@public.gmane.org>
2009-02-09 11:19 ` Tetsuo Handa
[not found] ` <200902092019.CHE32301.JLFVFMtQSOOFHO-JPay3/Yim36HaxMnTkn67Xf5DAMn2ifp@public.gmane.org>
2009-02-11 22:54 ` Alok Kataria
2009-02-11 23:02 ` Alok Kataria
2009-02-13 11:54 ` Tetsuo Handa
2009-01-19 21:45 ` [Bug #12411] 2.6.28: BUG in r8169 Rafael J. Wysocki
2009-01-19 21:45 ` [Bug #12426] TMDC Joystick no longer works in kernel 2.6.28 Rafael J. Wysocki
2009-01-21 0:48 ` Andrew S. Johnson
[not found] ` <200901201848.32080.andy-9eXmkf4BiQ2aMJb+Lgu22Q@public.gmane.org>
2009-01-22 13:34 ` Jiri Kosina
[not found] ` <alpine.LRH.1.10.0901221432320.13438-1ReQVI26iDCaZKY3DrU6dA@public.gmane.org>
2009-01-23 2:06 ` Andrew S. Johnson
[not found] ` <200901222006.44919.andy-9eXmkf4BiQ2aMJb+Lgu22Q@public.gmane.org>
2009-01-26 11:49 ` Jiri Kosina
2009-01-19 21:45 ` [Bug #12465] KVM guests stalling on 2.6.28 (bisected) Rafael J. Wysocki
2009-01-20 0:12 ` Kevin Shanahan
[not found] ` <1232410363.4768.21.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-01-20 11:35 ` Ingo Molnar
[not found] ` <20090120113546.GA26571-X9Un+BFzKDI@public.gmane.org>
2009-01-20 12:37 ` Avi Kivity
2009-01-20 12:42 ` Kevin Shanahan
[not found] ` <1232455343.4895.4.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-01-20 12:56 ` Ingo Molnar
[not found] ` <20090120125652.GA1457-X9Un+BFzKDI@public.gmane.org>
2009-01-20 13:07 ` Ingo Molnar
[not found] ` <20090120130714.GA11048-X9Un+BFzKDI@public.gmane.org>
2009-01-20 14:59 ` Steven Rostedt
[not found] ` <alpine.DEB.1.10.0901200957220.2681-f9ZlEuEWxVcI6MkJdU+c8EEOCMrvLtNR@public.gmane.org>
2009-01-20 15:04 ` Ingo Molnar
[not found] ` <20090120150408.GD21931-X9Un+BFzKDI@public.gmane.org>
2009-01-20 17:53 ` Steven Rostedt
[not found] ` <alpine.DEB.1.10.0901201251180.2681-f9ZlEuEWxVcI6MkJdU+c8EEOCMrvLtNR@public.gmane.org>
2009-01-20 18:39 ` Ingo Molnar [this message]
2009-01-20 17:47 ` Avi Kivity
[not found] ` <49760E2D.2060109-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2009-01-21 14:25 ` Kevin Shanahan
[not found] ` <1232547932.4895.119.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-01-21 14:34 ` Avi Kivity
[not found] ` <49773275.3020203-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2009-01-21 14:51 ` Kevin Shanahan
[not found] ` <1232549502.4895.124.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-01-21 14:59 ` Avi Kivity
[not found] ` <49773848.4080409-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2009-01-21 15:13 ` Steven Rostedt
2009-01-22 1:48 ` Steven Rostedt
2009-01-21 15:10 ` Steven Rostedt
2009-01-21 15:18 ` Ingo Molnar
2009-01-22 19:57 ` Kevin Shanahan
[not found] ` <1232654237.4885.8.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-01-22 20:31 ` Ingo Molnar
[not found] ` <20090121151820.GA23813-X9Un+BFzKDI@public.gmane.org>
2009-01-26 9:55 ` Kevin Shanahan
2009-01-26 11:35 ` Peter Zijlstra
2009-01-26 14:38 ` [RFC][PATCH] ftrace: function graph trace context switches Peter Zijlstra
2009-01-26 15:39 ` Frédéric Weisbecker
2009-01-26 15:41 ` Steven Rostedt
2009-03-16 17:57 ` Frederic Weisbecker
2009-01-26 15:00 ` [Bug #12465] KVM guests stalling on 2.6.28 (bisected) Ingo Molnar
2009-01-20 14:23 ` Kevin Shanahan
[not found] ` <1232461380.4895.33.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-01-20 14:25 ` Ingo Molnar
[not found] ` <20090120142515.GC10224-X9Un+BFzKDI@public.gmane.org>
2009-01-20 15:51 ` Kevin Shanahan
[not found] ` <1232466686.4895.45.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-01-20 16:06 ` Ingo Molnar
[not found] ` <20090120160613.GA32650-X9Un+BFzKDI@public.gmane.org>
2009-01-20 16:19 ` Peter Zijlstra
2009-01-20 14:46 ` Frédéric Weisbecker
2009-01-20 13:04 ` Avi Kivity
[not found] ` <4975CBF8.90101-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2009-01-20 17:54 ` Kevin Shanahan
[not found] ` <1232474081.4895.76.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-01-20 18:42 ` Ingo Molnar
2009-01-19 21:45 ` [Bug #12483] Reference to inexistent struct dmi_device_id breaks the build Rafael J. Wysocki
2009-01-20 8:15 ` Jean Delvare
2009-01-19 21:45 ` [Bug #12500] r8169: NETDEV WATCHDOG: eth0 (r8169): transmit timed out Rafael J. Wysocki
2009-01-22 16:43 ` 2.6.29-rc2-git1: Reported regressions 2.6.27 -> 2.6.28 Jörg-Volker Peetz
2009-01-24 13:25 ` Rolf Eike Beer
-- strict thread matches above, loose matches on Subject: below --
2009-02-04 10:55 2.6.29-rc3-git6: " Rafael J. Wysocki
2009-02-04 10:58 ` [Bug #12465] KVM guests stalling on 2.6.28 (bisected) Rafael J. Wysocki
2009-02-05 19:35 ` Kevin Shanahan
[not found] ` <1233862503.4823.1.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-02-05 22:37 ` Rafael J. Wysocki
2009-02-14 20:48 2.6.29-rc5: Reported regressions 2.6.27 -> 2.6.28 Rafael J. Wysocki
2009-02-14 20:50 ` [Bug #12465] KVM guests stalling on 2.6.28 (bisected) Rafael J. Wysocki
2009-02-23 22:00 2.6.29-rc6: Reported regressions 2.6.27 -> 2.6.28 Rafael J. Wysocki
2009-02-23 22:03 ` [Bug #12465] KVM guests stalling on 2.6.28 (bisected) Rafael J. Wysocki
2009-02-24 0:59 ` Kevin Shanahan
[not found] ` <1235437183.4988.2.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-02-24 1:37 ` Rafael J. Wysocki
2009-02-24 12:09 ` Avi Kivity
[not found] ` <49A3E38F.7080306-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2009-02-24 22:11 ` Kevin Shanahan
2009-03-03 19:34 2.6.29-rc6-git7: Reported regressions 2.6.27 -> 2.6.28 Rafael J. Wysocki
2009-03-03 19:41 ` [Bug #12465] KVM guests stalling on 2.6.28 (bisected) Rafael J. Wysocki
2009-03-04 3:08 ` Kevin Shanahan
[not found] ` <1236136099.7726.12.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-03-08 10:04 ` Avi Kivity
2009-03-14 19:11 2.6.29-rc8: Reported regressions 2.6.27 -> 2.6.28 Rafael J. Wysocki
2009-03-14 19:20 ` [Bug #12465] KVM guests stalling on 2.6.28 (bisected) Rafael J. Wysocki
2009-03-15 9:03 ` Kevin Shanahan
[not found] ` <1237107837.27699.27.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-03-15 9:18 ` Avi Kivity
[not found] ` <49BCC7C8.2020503-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2009-03-15 9:48 ` Ingo Molnar
[not found] ` <20090315094807.GB21169-X9Un+BFzKDI@public.gmane.org>
2009-03-15 9:56 ` Avi Kivity
2009-03-15 10:03 ` Ingo Molnar
[not found] ` <20090315100329.GA23577-X9Un+BFzKDI@public.gmane.org>
2009-03-15 10:13 ` Avi Kivity
2009-03-16 9:49 ` Avi Kivity
[not found] ` <49BE20B2.9070804-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2009-03-16 12:46 ` Kevin Shanahan
[not found] ` <1237207595.4964.31.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-03-16 20:07 ` Frederic Weisbecker
2009-03-16 22:55 ` Kevin Shanahan
[not found] ` <1237244137.4964.54.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-03-18 0:20 ` Frederic Weisbecker
2009-03-18 1:16 ` Kevin Shanahan
[not found] ` <1237338986.4801.11.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-03-18 2:24 ` Frederic Weisbecker
2009-03-18 21:24 ` Kevin Shanahan
[not found] ` <1237411441.5211.5.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-03-21 5:00 ` Kevin Shanahan
[not found] ` <1237611639.4933.4.camel-9TBizaOOD0ujuAshGpSIhRCuuivNXqWP@public.gmane.org>
2009-03-21 14:08 ` Frederic Weisbecker
2009-03-24 11:44 ` Frederic Weisbecker
2009-03-24 11:47 ` Frederic Weisbecker
2009-03-25 23:40 ` Kevin Shanahan
2009-03-25 23:48 ` Frederic Weisbecker
2009-03-26 20:22 ` Kevin Shanahan
2009-03-21 17:01 2.6.29-rc8-git5: Reported regressions 2.6.27 -> 2.6.28 Rafael J. Wysocki
2009-03-21 17:07 ` [Bug #12465] KVM guests stalling on 2.6.28 (bisected) Rafael J. Wysocki
2009-03-21 19:50 ` Ingo Molnar
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