Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1946066AbaD3U0T (ORCPT ); Wed, 30 Apr 2014 16:26:19 -0400 Received: from mail-vc0-f171.google.com ([209.85.220.171]:54485 "EHLO mail-vc0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1946028AbaD3U0N (ORCPT ); Wed, 30 Apr 2014 16:26:13 -0400 MIME-Version: 1.0 In-Reply-To: <53614BFE.9090804@linux.vnet.ibm.com> References: <535EA976.1080402@linux.vnet.ibm.com> <1398723290.25549.20.camel@buesod1.americas.hpqcorp.net> <535F77E8.2040000@linux.vnet.ibm.com> <53614BFE.9090804@linux.vnet.ibm.com> Date: Wed, 30 Apr 2014 13:26:12 -0700 X-Google-Sender-Auth: UIsIIL2RukozMOTJRsELbm5xU1Q Message-ID: Subject: Re: [BUG] kernel BUG at mm/vmacache.c:85! From: Linus Torvalds To: "Srivatsa S. Bhat" Cc: Davidlohr Bueso , Hugh Dickins , Linux MM , "linux-kernel@vger.kernel.org" , Rik van Riel , Michel Lespinasse , "akpm@linux-foundation.org" , Oleg Nesterov , Dave Jones Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 30, 2014 at 12:16 PM, Srivatsa S. Bhat wrote: > > So I tried the same recipe again (boot into 3.7.7 and kexec into 3.15-rc3+) > and I got totally random crashes so far, once in sys_kill and two times in > exit_mmap. So I guess the bug is in 3.7.x and probably 3.15-rc is fine after > all... Yeah, ok, that sounds more likely. Random memory corruption due to kexec having done something horribly bad. Linus -- 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/