From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751244AbcFXIIe (ORCPT ); Fri, 24 Jun 2016 04:08:34 -0400 Received: from mail-wm0-f66.google.com ([74.125.82.66]:35680 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751010AbcFXIIY (ORCPT ); Fri, 24 Jun 2016 04:08:24 -0400 Date: Fri, 24 Jun 2016 10:08:19 +0200 (CEST) From: Enrico Mioso X-X-Sender: mrkiko@localhost.localdomain To: Steven Rostedt cc: linux-kernel@vger.kernel.org, Ingo Molnar , mattia.bonomi@studenti.unitn.it Subject: Re: [ftrace] kernel panics during my attempt to use ftrace In-Reply-To: <20160622111025.03e738ba@gandalf.local.home> Message-ID: References: <20160622111025.03e738ba@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Steven. Thank you for your very very kind response. I can build a stock kernel (I usually did for my real hw): and I don't see problems on this. The problem is the bitness. My only KVM-enabled machine, as far as I can tell, has a 32-bit CPU. So This would be a different problem. I'll let you know when I can continue: right now I am a little bit in trouble with my exams: but I hope I will be able to eventually cme back and test. Below my cpuinfo just for the record. Thank you very much, Enrico processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 28 model name : Intel(R) Atom(TM) CPU Z520 @ 1.33GHz stepping : 2 microcode : 0x211 cpu MHz : 1333.000 cache size : 512 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts aperfmperf eagerfpu pni dtes64 monitor ds_cpl vmx est tm2 ssse3 xtpr pdcm movbe lahf_lm tpr_shadow vnmi flexpriority dtherm bugs : bogomips : 2662.89 clflush size : 64 cache_alignment : 64 address sizes : 32 bits physical, 32 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 28 model name : Intel(R) Atom(TM) CPU Z520 @ 1.33GHz stepping : 2 microcode : 0x211 cpu MHz : 800.000 cache size : 512 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 apicid : 1 initial apicid : 1 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts aperfmperf eagerfpu pni dtes64 monitor ds_cpl vmx est tm2 ssse3 xtpr pdcm movbe lahf_lm tpr_shadow vnmi flexpriority dtherm bugs : bogomips : 2662.42 clflush size : 64 cache_alignment : 64 address sizes : 32 bits physical, 32 bits virtual power management: