From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.pangeatech.com (pxofc151-phx1.pangeatech.com [63.110.32.151]) by dsl2.external.hp.com (Postfix) with ESMTP id F277A482A for ; Wed, 3 Apr 2002 11:13:50 -0700 (MST) Received: from [65.192.22.133] by mail.pangeatech.com (NTMail 7.00.0018/NU8172.00.e2123c13) with ESMTP id tpoimaaa for parisc-linux@lists.parisc-linux.org; Wed, 3 Apr 2002 11:12:53 -0700 Date: Wed, 3 Apr 2002 10:13:37 -0800 From: Randolph Chung To: joel.soete@freebel.net Cc: parisc-linux@lists.parisc-linux.org Subject: Re: [parisc-linux] "unaligned access to ... at ip=..." problem with evms and jfs Message-ID: <20020403181337.GA3759@tausq.org> Reply-To: Randolph Chung References: <1017854653.3cab3abdab486@webmail.tiscalinet.be> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1017854653.3cab3abdab486@webmail.tiscalinet.be> Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: > It seems harmless but not sure. well.... in general this is not a problem, however.... Fleedwood found a bug in the unaligned handler last week. it doesn't handle the pre/post increment cases of load and store, and there may be some cases where these messages will indicate the cause of errors. I'll look into fixing this, but it might take some time. > I query the ml db and found similar problems (and its solution :_) )(reiserfs: > http://lists.parisc-linux.org/hypermail/parisc-linux/5862.html), but I do not > very well understand what I have to find the sources (_u32* ?). it depends, you need to make sure all the memory accesses happen on natural boundaries... (e.g. int on 4 byte boundaries, short on 2 byte boundaries, etc). From the ip reported by the unaligned message you should be able to trace back to the asm insn and function (if your objects are not stripped) that is causing the unaligned access. randolph -- @..@ http://www.TauSq.org/ (----) ( >__< ) ^^ ~~ ^^