From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750898AbXCFUTm (ORCPT ); Tue, 6 Mar 2007 15:19:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750900AbXCFUTm (ORCPT ); Tue, 6 Mar 2007 15:19:42 -0500 Received: from rgminet01.oracle.com ([148.87.113.118]:35341 "EHLO rgminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750853AbXCFUTl (ORCPT ); Tue, 6 Mar 2007 15:19:41 -0500 Date: Tue, 6 Mar 2007 12:19:32 -0800 From: Bill Irwin To: "Alexander Y. Fomichev" Cc: Bill Irwin , Linux Kernel Mailing List , admin@list.net.ru Subject: Re: kernel BUG at arch/x86_64/mm/../../i386/mm/hugetlbpage.c:140! Message-ID: <20070306201932.GC18774@holomorphy.com> Mail-Followup-To: Bill Irwin , "Alexander Y. Fomichev" , Linux Kernel Mailing List , admin@list.net.ru References: <200703021651.16050.gluk@php4.ru> <20070302214111.GL10643@holomorphy.com> <200703061545.23470.gluk@php4.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200703061545.23470.gluk@php4.ru> User-Agent: Mutt/1.5.11 X-Brightmail-Tracker: AAAAAQAAAAI= X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Saturday 03 March 2007, Bill Irwin wrote: >> If you have a known-working kernel version, git-bisect might help you >> track down where it was introduced. Given the messages prior to the >> hugetlbpage.c BUG_ON I'd say that this is something else besides the >> specific code listed by line number, On Tue, Mar 06, 2007 at 03:45:23PM +0300, Alexander Y. Fomichev wrote: > Nop, seems like it is hugetlb bug fixed by Adam > commit 516dffdcd8827a40532798602830dfcfc672294c > [PATCH] Fix get_unmapped_area and fsync for hugetlb shm segments > I've disregard it thoughtlessly so Adam marks it specific for powerpc/ia64. > (hmm.. i donno realy why, huge pages should be alined anyway and if i > understend it correctly it may not be if is_file_hugepages() fails) > As of "junk" just before the BUG this again IIUC because o-direct staff > catches this issue before hugetlb. I'm not terribly surprised. The issue Adam fixed is relatively easily triggered. Bisecting probably wouldn't have been useful, sorry. -- wli