Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937289Ab3DIQ5x (ORCPT ); Tue, 9 Apr 2013 12:57:53 -0400 Received: from mail-we0-f171.google.com ([74.125.82.171]:45780 "EHLO mail-we0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759419Ab3DIQ5v (ORCPT ); Tue, 9 Apr 2013 12:57:51 -0400 MIME-Version: 1.0 Reply-To: sedat.dilek@gmail.com In-Reply-To: References: <31778276.CDMUtaAAnc@vostro.rjw.lan> Date: Tue, 9 Apr 2013 18:57:49 +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: 1483 Lines: 41 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? > > I am not able to find next-20130326 tag in my repo, only have 23 and 28. > Can you debug it a bit to find exact line of code causing this issue using > objdump? > > HINT: Documentation/BUG-HUNTING.. > next-20130326 see... [1] http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/tag/?id=next-20130326 objdump of file? > Give me line numbers of both of these functions: __cpufreq_governor() and > __cpufreq_remove_dev(). I must checkout by myself and jump on next-20130326. Unfortunately, I have it installed but have no binaries and deleted the branch from my local GIT branch. Still on the fs/pipe issue from vfs-next :-). I guess I have a working follow-up patch, still compiling. - Sedat - -- 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/