Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263059AbUDTRe6 (ORCPT ); Tue, 20 Apr 2004 13:34:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263475AbUDTRe6 (ORCPT ); Tue, 20 Apr 2004 13:34:58 -0400 Received: from mail.mellanox.co.il ([194.90.237.34]:52283 "EHLO mtlex01.yok.mtl.com") by vger.kernel.org with ESMTP id S263059AbUDTRe5 (ORCPT ); Tue, 20 Apr 2004 13:34:57 -0400 Message-ID: <40855F95.7080003@mellanox.co.il> Date: Tue, 20 Apr 2004 20:36:21 +0300 From: Eli Cohen User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040113 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Roland Dreier CC: linux-kernel@vger.kernel.org Subject: Re: sysrq shows impossible call stack References: <408545AA.6030807@mellanox.co.il> <52ekqizkd2.fsf@topspin.com> In-Reply-To: <52ekqizkd2.fsf@topspin.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 838 Lines: 23 Roland Dreier wrote: > Eli> Hi, I am exsperiencing a hang, probably caused by a deadlock, > Eli> so I can do sysrq commands. However I can see that in some > Eli> cases the exspected call stack has some functions in between > Eli> as if two call stack are interleaved. > >Hi Eli, > >I think what you are seeing is old values left on the stack. If a >function allocates space for local variables but bumping the stack >pointer, but then never actually uses those variables, then old values >including old return addresses may be left in the stack. > > - Roland > > Thanks Roland - 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/