Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751967Ab3DJGOL (ORCPT ); Wed, 10 Apr 2013 02:14:11 -0400 Received: from mail-we0-f173.google.com ([74.125.82.173]:39279 "EHLO mail-we0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751197Ab3DJGOJ (ORCPT ); Wed, 10 Apr 2013 02:14:09 -0400 MIME-Version: 1.0 Reply-To: sedat.dilek@gmail.com In-Reply-To: References: <31778276.CDMUtaAAnc@vostro.rjw.lan> Date: Wed, 10 Apr 2013 08:14:06 +0200 Message-ID: Subject: Re: linux-next: Tree for Apr 9 [cpufreq: NULL pointer deref] From: Sedat Dilek To: Viresh Kumar Cc: "Rafael J. Wysocki" , Stephen Rothwell , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org, cpufreq@vger.kernel.org, Linux PM list Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1843 Lines: 50 On Wed, Apr 10, 2013 at 7:53 AM, Sedat Dilek wrote: > On Wed, Apr 10, 2013 at 7:41 AM, Sedat Dilek wrote: >> On Tue, Apr 9, 2013 at 6:51 PM, Viresh Kumar wrote: >>> On 9 April 2013 21:38, Sedat Dilek wrote: >>>> With x=3 the system gets in an unuseable state. >>>> >>>> root# echo 0 > /sys/devices/system/cpu/cpu3/online >>>> >>>> I could not write my reply and had to do a hard/cold reboot. >>>> The dmesg log I saw looked similiar to my digicam-shot. >>> >>> Few things i need from you. First is output of cpufreq-info. Then >>> all the steps you did to reproduce above? Removed any other cpus? >>> >> >> Here is the output of cpufreq-info of the stable distro-kernel I am using. >> If you need the one from the "BROKEN" kernel, please let me know. >> >> - Sedat - > > Hmm, I see that the kernel-sources itself ships a... > > ./tools/power/cpupower/utils/cpufreq-info.c > > IIRC current 'make deb-pkg' does not build the tools, but I have seen > a patch on linux-kbuild ML. I found this "[RFC PATCH] kbuild: Build linux-tools package with 'make deb-pkg'" from February 2012. Can't say what happened to it... - Sedat - [1] http://lists.debian.org/debian-kernel/2012/02/msg01009.html > Can I build cpufreq-info.c afterwards? Do I need a already-compiled build-dir? > > Thanks in advance for answering my questions. > > BTW, I have found a nice article on LWN "cpupowerutils - cpufrequtils > extended with quite some features" (see [1]). > > - Sedat - > > [1] http://lwn.net/Articles/433002/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/