From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with SMTP id 718446B004A for ; Thu, 2 Jun 2011 10:36:51 -0400 (EDT) Date: Thu, 2 Jun 2011 16:36:22 +0200 From: Andrea Arcangeli Subject: Re: [BUG 3.0.0-rc1] ksm: NULL pointer dereference in ksm_do_scan() Message-ID: <20110602143622.GE19505@random.random> References: <20110601222032.GA2858@thinkpad> <2144269697.363041.1306998593180.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> <20110602143143.GI23047@sequoia.sous-sol.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110602143143.GI23047@sequoia.sous-sol.org> Sender: owner-linux-mm@kvack.org List-ID: To: Chris Wright Cc: CAI Qian , Andrea Righi , Hugh Dickins , Rik van Riel , Mel Gorman , Izik Eidus , KAMEZAWA Hiroyuki , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton On Thu, Jun 02, 2011 at 07:31:43AM -0700, Chris Wright wrote: > * CAI Qian (caiqian@redhat.com) wrote: > > madvise(0x2210000, 4096, 0xc /* MADV_??? */) = 0 > > --- SIGSEGV (Segmentation fault) @ 0 (0) --- > > Right, that's just what the program is trying to do, segfault. > > > +++ killed by SIGSEGV (core dumped) +++ > > Segmentation fault (core dumped) > > > > Did I miss anything? > > I found it works but not 100% of the time. > > So I just run the bug in a loop. echo 0 >scan_millisecs helps. -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org