Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030212AbWAIRrE (ORCPT ); Mon, 9 Jan 2006 12:47:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030215AbWAIRrE (ORCPT ); Mon, 9 Jan 2006 12:47:04 -0500 Received: from wproxy.gmail.com ([64.233.184.196]:31380 "EHLO wproxy.gmail.com") by vger.kernel.org with ESMTP id S1030212AbWAIRrC convert rfc822-to-8bit (ORCPT ); Mon, 9 Jan 2006 12:47:02 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=n+kRaWHn2hI38yEK0owIqwpG1gp5KZXpMhxwOo8MbHP4S2XvZMqmKjgvwC2pE9Ly8DhshOicwfeILqUuPc7PKWm3Ud7LrS3nUvgm07a9hxnqQxwuLX71p/uuOu3zOYMrRYBOiibOE5IZWb/Ayg6dT6VF8gxLC3RVMhasvtHsCwk= Message-ID: <9a8748490601090947i524d5f73uf5ccd06d8c693cae@mail.gmail.com> Date: Mon, 9 Jan 2006 18:47:01 +0100 From: Jesper Juhl To: Andrew Morton Subject: Re: 2.6.15-mm2 Cc: linux-kernel@vger.kernel.org, Dave Jones In-Reply-To: <9a8748490601070708p4353eb0ev9ea15edee132b13b@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <20060107052221.61d0b600.akpm@osdl.org> <9a8748490601070708p4353eb0ev9ea15edee132b13b@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2432 Lines: 62 On 1/7/06, Jesper Juhl wrote: > On 1/7/06, Andrew Morton wrote: > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.15/2.6.15-mm2/ > > > > This should be somewhat less buggy than 2.6.15-mm1. > > > For some maybe. For me it's just as broken as 2.6.15-mm1 :-( > > I'll turn on all debug switches and try and collect some crash dumps. > If there's anything specific you want me to try, let me know. > Ok, got some info. Following Dave's theory that, given that I hit bad_page() sometimes during the crash that might actually be the first thing I hit before hitting BUG(), I added an infinite loop at the end of bad_page() so it would stay on screen for me to write down - and bad_page() turns out to actuall *be* the very first thing I hit. Here's what bad_page printed for me : Bad page state in process 'kded' [] dump_stack+0x17/0x20 [] bad_page+0x69/0x160 [] __free_pages_ok+0xa2/0x120 [] __free_pages+0x2f/0x60 [] sg_page_free+0x23/0x30 [] sg_remove_scat+0x63/0xe0 [] __sg_remove_sfp+0x4d/0xc0 [] sg_remove_sfp+0xa7/0x120 [] sg_release+0x49/0xc0 [] __fput+0x167/0x1b0 [] fput+0x3b/0x50 [] filp_close+0x3c/0x80 [] sys_close+0x69/0x90 [] syscall_call+0x7/0xb Hexdump: 000: ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 010: 50 81 e8 c1 50 81 e8 c1 ff ff ff ff 00 00 00 00 020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 040: 00 00 00 00 ff ff ff ff 00 00 00 00 00 00 00 00 050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -- Jesper Juhl Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html - 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/