From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Mark Lord <lkml@rtr.ca>
Cc: Arjan van de Ven <arjan@infradead.org>,
"Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
abelay@novell.com, lenb@kernel.org, linux-kernel@vger.kernel.org,
linux-acpi@vger.kernel.org
Subject: Re: 20000+ wake-ups/second in 2.6.24. Bug?
Date: Sun, 2 Dec 2007 01:20:35 +0100 [thread overview]
Message-ID: <200712020120.36439.rjw@sisk.pl> (raw)
In-Reply-To: <4751F484.6040204@rtr.ca>
On Sunday, 2 of December 2007, Mark Lord wrote:
> Arjan van de Ven wrote:
> > On Sat, 01 Dec 2007 18:43:39 -0500
> > Mark Lord <lkml@rtr.ca> wrote:
> >
> >> Dagnabbit.. it's done it again.. went from 100-200 wakeups/sec
> >> back up to 20000+ wakeups/sec. This time *with* the powertop patches
> >> in place.
> >>
> >> Somethings broken in there, but I don't know what.
> >> Or how to make it happen on demand.. it's fine after rebooting again.
> >>
> >> ???
> >>
> >> At least now I know to look when I hear the fan turning on
> >> when the system is otherwise supposed to be idle..
> >>
> >> 2.6.23 did not have this problem.
> >
> > actually we have reports of 2.6.23 having the exact same problem.
> > The thing is, "something" is causing the system to go into a state
> > where the cpu throws us right out of the C-state the kernel asks for.
> ...
>
> Ahh. Okay, this machine here did not have the problem on 2.6.23.
So on this particular machine it is a regression.
I'm tempted to add it to the list of recent regressions in case it appears on
someone else's system on which 2.6.23 works correctly. Objections?
Rafael
next prev parent reply other threads:[~2007-12-02 0:02 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200711302153.lAULrZ7n026255@imap1.linux-foundation.org>
[not found] ` <924EFEDD5F540B4284297C4DC59F3DEE2FAE6A@orsmsx423.amr.corp.intel.com>
2007-11-30 22:20 ` + restore-missing-sysfs-max_cstate-attr.patch added to -mm tree Andrew Morton
2007-11-30 22:37 ` Pallipadi, Venkatesh
2007-12-01 2:52 ` Mark Lord
2007-12-01 3:02 ` Arjan van de Ven
2007-12-01 3:14 ` Mark Lord
2007-12-01 3:18 ` Arjan van de Ven
2007-12-01 3:31 ` Mark Lord
2007-12-01 3:44 ` Mark Lord
2007-12-01 3:48 ` Mark Lord
2007-12-01 4:02 ` Mark Lord
2007-12-01 4:31 ` Mark Lord
2007-12-01 23:43 ` 20000+ wake-ups/second in 2.6.24. Bug? Mark Lord
2007-12-01 23:46 ` Arjan van de Ven
2007-12-01 23:55 ` Mark Lord
2007-12-02 0:13 ` Arjan van de Ven
2007-12-02 1:10 ` Andres Freund
2007-12-02 0:20 ` Rafael J. Wysocki [this message]
2008-02-04 17:29 ` Mark Lord
2008-02-04 17:50 ` Arjan van de Ven
2008-02-04 19:17 ` Mark Lord
2007-12-02 14:41 ` Adrian Bunk
2007-12-02 14:59 ` Mark Lord
2007-12-02 15:12 ` Adrian Bunk
2007-12-02 15:45 ` Mark Lord
2007-12-02 15:45 ` Mark Lord
2007-12-02 15:49 ` Mark Lord
2008-01-02 23:41 ` + restore-missing-sysfs-max_cstate-attr.patch added to -mm tree Mark Lord
2008-01-03 0:06 ` Pallipadi, Venkatesh
2008-01-03 0:51 ` Andrew Morton
2008-01-03 1:12 ` Pallipadi, Venkatesh
2008-01-03 4:25 ` Mark Lord
2008-01-03 4:18 ` Mark Lord
2008-01-04 2:16 ` Venki Pallipadi
2008-01-04 3:16 ` Mark Lord
2008-01-04 21:52 ` Mark Lord
2008-01-04 21:59 ` Pallipadi, Venkatesh
2008-01-05 16:27 ` Mark Lord
2008-01-06 21:34 ` Mark Lord
2008-01-07 7:18 ` Andrew Morton
2008-01-07 14:07 ` Arjan van de Ven
2008-01-07 15:07 ` Mark Lord
2008-01-07 14:18 ` Pallipadi, Venkatesh
2008-01-07 15:06 ` Mark Lord
2008-01-07 19:12 ` Len Brown
2008-01-07 21:33 ` Mark Lord
2008-01-07 22:43 ` Len Brown
2007-12-01 10:17 ` Andrew Morton
2007-12-01 16:30 ` Arjan van de Ven
2007-12-05 11:17 ` Pavel Machek
2007-12-07 21:38 ` Pallipadi, Venkatesh
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