From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 21 Aug 2002 14:45:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 21 Aug 2002 14:45:11 -0400 Received: from tufnell.london1.poggs.net ([193.109.194.18]:4074 "EHLO tufnell.london1.poggs.net") by vger.kernel.org with ESMTP id ; Wed, 21 Aug 2002 14:45:10 -0400 Message-ID: <3D63E0E8.1080202@POGGS.CO.UK> Date: Wed, 21 Aug 2002 19:50:16 +0100 From: Peter Hicks Organization: Poggs Computer Services User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1b) Gecko/20020722 X-Accept-Language: en-gb, en-us, en-au, en-ie, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: PROBLEM: kernel BUG in buffer.c Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi everyone I've come across a BUG() in buffer.c, line 2497. I'm running 2.4.19 on a Pentium III, with no other problems. I'd finished making a backup of an IRIX installation CD, was mounting the freshly burnt CD, and was greeted with a hung 'mount' and the following in dmesg: EFS: 1.0a - http://aeschi.ch.eu.org/efs/ kernel BUG at buffer.c:2497! invalid operand: 0000 CPU: 0 EIP: 0010:[] Not tainted EFLAGS: 00010206 eax: 000007ff ebx: 0000000b ecx: 00000800 edx: d3cb58c0 esi: 00000000 edi: 00000b00 ebp: 00000000 esp: d7c9fe44 ds: 0018 es: 0018 ss: 0018 Process mount (pid: 1244, stackpage=d7c9f000) Stack: 00000b00 00000200 00000000 00000000 00004000 c01340a7 00000b00 00000000 00000200 c02349b4 c1bf2e00 c1bf2ecc c0134294 00000b00 00000000 00000200 00000000 e089b219 00000b00 00000000 00000200 c02349b4 c1bf2e00 c15c71e0 Call Trace: [] [] [] [] [] [] [] [] [] [] [] [] [] [] Code: 0f 0b c1 09 20 21 20 c0 8b 44 24 20 05 00 fe ff ff 3d 00 0e Line 2497 of buffer.c is in grow_buffers, and the code is as follows: 2495: /* Size must be multiple of hard sectorsize */ 2496: if (size & (get_hardsect_size(dev)-1)) 2497: BUG(); This is the first time its happened. Can anybody confirm that this is, as I suspect, a problem with the CD-ROM and not with the kernel? Do I need to provide any more information to help somebody with troubleshooting? Best wishes, Peter (not currently subscribed to the list, please cc: in to replies!)