From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alberto Gonzalez Subject: Re: [Bug #12337] ~100 extra wakeups reported by powertop Date: Tue, 24 Feb 2009 05:50:34 -0800 (PST) Message-ID: <819821.83409.qm@web53303.mail.re2.yahoo.com> References: <200902242338.14105.nickpiggin@yahoo.com.au> Reply-To: luis6674-/E1597aS9LQAvxtiuMwx3w@public.gmane.org Mime-Version: 1.0 Return-path: In-Reply-To: <200902242338.14105.nickpiggin-/E1597aS9LT0CCvOHzKKcA@public.gmane.org> Sender: kernel-testers-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Eric Anholt , Jesse Barnes , Nick Piggin Cc: Linux Kernel Mailing List , "Rafael J. Wysocki" , Kernel Testers List --- On Tue, 2/24/09, Nick Piggin wrote: > > I really wish I could do more, but learning to compile > a custom kernel for > > my hardware and do a git bisect is something I just > can't afford now. If > > relevant people try to reproduce it but can't, and > say only possible > > solution would be for me to bisect it I guess I could > try to give it a go > > when I get some spare time. > > Fair enough. Reporting a problem is always very > appreciated. > > Pinging Eric and Jesse ;) Thank you Nick. Since Arch Linux is not popular among kernel developers I just tested Fedora 10 Live-CD (KDE) and I can reproduce the exact same problem, even if Fedora 10 has kernel 2.6.27 and for me the problem appeared in .28 (but I guess Fedora adds many patches, so probably the "guilty" commit was backported to 2.6.27.5-117-FC10-i686). Steps: - Boot into Fedora 10 Live CD (obviously, into the default graphical mode) - Install Powertop (yum install powertop) and run it - I get about 60 wakeups per second from i915@pci.... leaving the system idle - Switch to console and back to X. The wakeups are gone. I hope that helps.