Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756749Ab1EICoP (ORCPT ); Sun, 8 May 2011 22:44:15 -0400 Received: from ozlabs.org ([203.10.76.45]:45339 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756670Ab1EICoO (ORCPT ); Sun, 8 May 2011 22:44:14 -0400 From: Rusty Russell To: OGAWA Hirofumi , linux-kernel@vger.kernel.org Subject: Re: unable to handle kernel paging request when inserting FAT32 formatted flash media In-Reply-To: <87k4e8ecm4.fsf@devron.myhome.or.jp> References: <20110502064945.GA12197@mac.home> <20110502065529.GA12397@mac.home> <87y62pf9xg.fsf@devron.myhome.or.jp> <87r58hf866.fsf@devron.myhome.or.jp> <20110502170122.GA14096@eazy.amigager.de> <87k4e9ey9k.fsf@devron.myhome.or.jp> <20110502203327.GA19507@mac.home> <87bozkg3ng.fsf@devron.myhome.or.jp> <8762psfwew.fsf@devron.myhome.or.jp> <87vcxsegbo.fsf@devron.myhome.or.jp> <87r58geejh.fsf@devron.myhome.or.jp> <87k4e8ecm4.fsf@devron.myhome.or.jp> User-Agent: Notmuch/0.3.1 (http://notmuchmail.org) Emacs/23.1.1 (i686-pc-linux-gnu) Date: Mon, 09 May 2011 11:56:01 +0930 Message-ID: <874o54ip8m.fsf@rustcorp.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1139 Lines: 25 On Tue, 03 May 2011 11:34:11 +0900, OGAWA Hirofumi wrote: > > Hm. It seems to be 0x80 was gone somehow. If I added 0x80 at 0x8661, it > > seems to be sane code. > > > > 20: 74 51 je 73 > > 22: 49 c7 c6 d8 91 13 a0 mov $0xffffffffa01391d8,%r14 > > 29: b2 b6 mov $0xb6,%dl > > 2b: 80 3d fc 9b 00 00 00 cmpb $0x0,0x9bfc(%rip) <- here is 0x8661 > > 32: 74 3f je 73 > > 34: 49 8d 44 24 08 lea 0x8(%r12),%rax > > Code: fd ff ff 0f 1f 80 00 00 00 00 83 ca 01 89 93 10 02 00 00 ba ff > 01 00 00 41 f6 85 96 00 00 00 02 74 51 49 c7 c6 d8 91 13 a0 b2 b6 3d > fc 9b 00 00 00 74 3f 49 8d 44 24 08 48 89 44 24 08 eb 18 How strange, but if this can't be reproduced with a rebuilt kernel I'm tempted to put it down to corruption in the module somehow... Thanks, Rusty. -- 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/