From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Figa Subject: Re: exynos4: cpu hotplug + cpuidle/AFTR broken Date: Tue, 01 Apr 2014 13:22:34 +0200 Message-ID: <533AA17A.1090405@samsung.com> References: <533A9849.1080402@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mailout4.w1.samsung.com ([210.118.77.14]:59254 "EHLO mailout4.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752600AbaDALWl (ORCPT ); Tue, 1 Apr 2014 07:22:41 -0400 Received: from eucpsbgm2.samsung.com (unknown [203.254.199.245]) by mailout4.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N3C00E1ANLQP950@mailout4.w1.samsung.com> for linux-samsung-soc@vger.kernel.org; Tue, 01 Apr 2014 12:22:38 +0100 (BST) In-reply-to: <533A9849.1080402@linaro.org> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Daniel Lezcano , linux-samsung-soc@vger.kernel.org, "linux-arm-kernel@lists.infradead.org" , Kukjin Kim Hi Daniel, On 01.04.2014 12:43, Daniel Lezcano wrote: > > Hi all, > > I tried the v3.14 kernel and unplugged the cpu1. That leads to a kernel > hang without any trace. > > If I disable the cpuidle AFTR state through sysfs before unplugging > cpu1, it works well. > > I reproduced the issue on v3.14, v3.13, v3.12, v3.11 > > v3.10 works fine. Could you try to reproduce the same issue on linux-next? Some of PM issues on Exynos should be patches there. Best regards, Tomasz From mboxrd@z Thu Jan 1 00:00:00 1970 From: t.figa@samsung.com (Tomasz Figa) Date: Tue, 01 Apr 2014 13:22:34 +0200 Subject: exynos4: cpu hotplug + cpuidle/AFTR broken In-Reply-To: <533A9849.1080402@linaro.org> References: <533A9849.1080402@linaro.org> Message-ID: <533AA17A.1090405@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Daniel, On 01.04.2014 12:43, Daniel Lezcano wrote: > > Hi all, > > I tried the v3.14 kernel and unplugged the cpu1. That leads to a kernel > hang without any trace. > > If I disable the cpuidle AFTR state through sysfs before unplugging > cpu1, it works well. > > I reproduced the issue on v3.14, v3.13, v3.12, v3.11 > > v3.10 works fine. Could you try to reproduce the same issue on linux-next? Some of PM issues on Exynos should be patches there. Best regards, Tomasz