From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Lezcano Subject: Re: exynos4: cpu hotplug + cpuidle/AFTR broken Date: Tue, 01 Apr 2014 14:16:52 +0200 Message-ID: <533AAE34.20601@linaro.org> References: <533A9849.1080402@linaro.org> <533AA17A.1090405@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-we0-f175.google.com ([74.125.82.175]:41623 "EHLO mail-we0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751890AbaDAMQj (ORCPT ); Tue, 1 Apr 2014 08:16:39 -0400 Received: by mail-we0-f175.google.com with SMTP id q58so6055079wes.6 for ; Tue, 01 Apr 2014 05:16:38 -0700 (PDT) In-Reply-To: <533AA17A.1090405@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Tomasz Figa , linux-samsung-soc@vger.kernel.org, "linux-arm-kernel@lists.infradead.org" , Kukjin Kim On 04/01/2014 01:22 PM, Tomasz Figa wrote: > 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 ker= nel >> 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. Tested on linux-next. Works fine. Do you have an idea of the patch which have fixed the issue ? In order=20 to backport it the kernels mentioned above. Thanks -- Daniel --=20 Linaro.org =E2=94=82 Open source software fo= r ARM SoCs =46ollow Linaro: Facebook | Twitter | Blog From mboxrd@z Thu Jan 1 00:00:00 1970 From: daniel.lezcano@linaro.org (Daniel Lezcano) Date: Tue, 01 Apr 2014 14:16:52 +0200 Subject: exynos4: cpu hotplug + cpuidle/AFTR broken In-Reply-To: <533AA17A.1090405@samsung.com> References: <533A9849.1080402@linaro.org> <533AA17A.1090405@samsung.com> Message-ID: <533AAE34.20601@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 04/01/2014 01:22 PM, Tomasz Figa wrote: > 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. Tested on linux-next. Works fine. Do you have an idea of the patch which have fixed the issue ? In order to backport it the kernels mentioned above. Thanks -- Daniel -- Linaro.org ? Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog