From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dietmar Eggemann Subject: Re: [RFCv4 PATCH 00/34] sched: Energy cost model for energy-aware scheduling Date: Mon, 29 Jun 2015 11:19:35 +0100 Message-ID: <55911BB7.3000804@arm.com> References: <1431459549-18343-1-git-send-email-morten.rasmussen@arm.com> <5552799E.2060507@nvidia.com> <20150513134753.GA26396@e105550-lin.cambridge.arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: 8BIT Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: "pang.xunlei@zte.com.cn" , Abel Vesa Cc: Juri Lelli , "linux-kernel@vger.kernel.org" , "linux-pm@vger.kernel.org" , "mingo@redhat.com" , Morten Rasmussen , "mturquette@linaro.org" , Peter Boonstoppel , "peterz@infradead.org" , "preeti@linux.vnet.ibm.com" , "rjw@rjwysocki.net" , Sai Gurrappadi , "vincent.guittot@linaro.org" , "yuyang.du@intel.com" List-Id: linux-pm@vger.kernel.org On 29/06/15 10:06, pang.xunlei@zte.com.cn wrote: > Hi Abel, > > Abel Vesa wrote 2015-06-29 AM 04:26:31: >> >> Re: [RFCv4 PATCH 00/34] sched: Energy cost model for energy-aware > scheduling [...] >> I wasn't able to determine the cause from the line: >> >> 7de5: 49 0f a3 87 00 03 00 bt %rax,0x300(%r15) >> >> Finally, the question I have is: Could this happen because I'm running >> it from qemu? >> >> I hope all this info helps. > > I've met this as well. > > You can try to change "return -1;" in energy_aware_wake_cpu() to "return > target_cpu;" > hope this may help. Yeah, I also suppose that https://lkml.org/lkml/2015/5/14/330 cures it. -- Dietmar [...]