From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qg0-f51.google.com (mail-qg0-f51.google.com [209.85.192.51]) by kanga.kvack.org (Postfix) with ESMTP id E10746B0038 for ; Wed, 5 Aug 2015 12:09:26 -0400 (EDT) Received: by qgeh16 with SMTP id h16so33151079qge.3 for ; Wed, 05 Aug 2015 09:09:26 -0700 (PDT) Received: from resqmta-ch2-05v.sys.comcast.net (resqmta-ch2-05v.sys.comcast.net. [2001:558:fe21:29:69:252:207:37]) by mx.google.com with ESMTPS id q201si6034678qha.62.2015.08.05.09.09.24 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Wed, 05 Aug 2015 09:09:25 -0700 (PDT) Date: Wed, 5 Aug 2015 11:09:22 -0500 (CDT) From: Christoph Lameter Subject: Re: PROBLEM: 4.1.4 -- Kernel Panic on shutdown In-Reply-To: <55C18D2E.4030009@rjmx.net> Message-ID: References: <55C18D2E.4030009@rjmx.net> Content-Type: TEXT/PLAIN; CHARSET=US-ASCII Content-ID: Sender: owner-linux-mm@kvack.org List-ID: To: Ron Murray Cc: Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , linux-mm@kvack.org, Ingo Molnar , Peter Zijlstra > [1.] One line summary of the problem: > 4.1.4 -- Kernel Panic on shutdown This is a kfree of an object that was not allocated via the slab allocators or was already freed. If you boot with the kernel command line argument "slub_debug" then you could get some more information. Could also be that memory was somehow corrupted. The backtrace shows that this is a call occurring in the scheduler. CCing scheduler developers. Call Trace: [] free_sched_group+0x29/0x30 [] free_sched_group+rcu+0x10/0x20 [] rcu_process_callbacks+0x231/0x510 [] __do_softirq+0xee/0x1e0 [] irq_exit+0x55/0x60 [] smp_apic_timer_interrupt+0x45/0x60 [] apic_timer_interrupt+0x6b/0x70 [] ? finish_task_switch+0x61/0x100 [] ? cpuidle_enter_state+0xad/0x170 [] ? cpuidle_enter_state+0xa6/0x170 [] cpuidle_enter+0x12/0x20 [] cpu_startup_entry+0x268/0x2e0 [] start_secondary+0x167/0x170 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org