From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: Ottawa Linux Power Management Summit, June 25-26, 2007 - Minutes Date: Tue, 25 Sep 2007 13:39:36 +0200 Message-ID: <200709251339.37601.rjw@sisk.pl> References: <200709050426.04793.lenb@kernel.org> <200709091426.39854.rjw@sisk.pl> <20070924194102.GH8127@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20070924194102.GH8127@redhat.com> Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Dave Jones Cc: linux-pm@lists.linux-foundation.org, Thomas Gleixner List-Id: linux-pm@vger.kernel.org On Monday, 24 September 2007 21:41, Dave Jones wrote: > On Sun, Sep 09, 2007 at 02:26:39PM +0200, Rafael J. Wysocki wrote: > > > > Dave mentioned that Fedora Core 7 32-bit is now shipping with > > > CONFIG_NOHZ=y and CONFIG_HZ=1000. > > > > CONFIG_NOHZ is known to break suspend and resume on some machines. These > > problems are being fixed over time, but that's a risky decision for a > > distribution to switch it on by default. > > Expect to see everyone else doing the same thing in the next versions. > Without field-testing this stuff it remains busted. A lot of bugs got > found and fixed by having this in Fedora that weren't tripped over > by linux-kernel testers at all. Well, that's certainly true. Still, we have open suspend bugs in which NO_HZ appears to be the culprit, eg. http://bugzilla.kernel.org/show_bug.cgi?id=8680 Greetings, Rafael