Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753905AbYGGNdz (ORCPT ); Mon, 7 Jul 2008 09:33:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750934AbYGGNdq (ORCPT ); Mon, 7 Jul 2008 09:33:46 -0400 Received: from wf-out-1314.google.com ([209.85.200.173]:12204 "EHLO wf-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750804AbYGGNdq (ORCPT ); Mon, 7 Jul 2008 09:33:46 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=QukE0pmNi/TmXSY2wGeMXqzkioBMwi4DQlx1syCV8T8LBq2SgDK5owEOapLK0BSzpA x6ivKBhHz0MkaU13awqVLv6QG+V0urUUF9SUeqT5RCnBPazYbpRPLFrmG/m8cDYB3nZN uYNhWr5cAHn2ufda6ZCcKo9J41zesnjnckEE4= Message-ID: <19f34abd0807070633y337486cek34f8fea6bbbf37f1@mail.gmail.com> Date: Mon, 7 Jul 2008 15:33:42 +0200 From: "Vegard Nossum" To: "Carl-Daniel Hailfinger" Subject: Re: [Linux-NTFS-Dev] Oops with corrupted NTFS image Cc: "Eric Sesterhenn" , linux-ntfs-dev@lists.sourceforge.net, "Anton Altaparmakov" , linux-kernel@vger.kernel.org In-Reply-To: <48721996.8050708@gmx.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080706172147.GA19559@alice> <20080707122450.GC19313@alice> <19f34abd0807070603p23b30372l5bee26b05b6fa9c7@mail.gmail.com> <48721996.8050708@gmx.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1237 Lines: 37 On Mon, Jul 7, 2008 at 3:26 PM, Carl-Daniel Hailfinger wrote: >> which is... >> >> vi->i_mtime = ntfs2utc(si->last_data_change_time); >> >> which is probably what is causing the NULL pointer dereference. >> > > The problem of this theory is that there is no NULL pointer dereference, > unless you meant "invalid memory access". Oops, yeah. I skipped a line, but page fault nonetheless ;-) The rest of the theory should still hold. The pointer being dereferenced is held in %eax, which is c6798550. This fits with the reported address: [ 76.583958] BUG: unable to handle kernel paging request at c6798558 ... [ 76.584019] EAX: c6798550 EBX: 00000000 ECX: c678b000 EDX: c678b038 Thanks for the correction. Vegard -- "The animistic metaphor of the bug that maliciously sneaked in while the programmer was not looking is intellectually dishonest as it disguises that the error is the programmer's own creation." -- E. W. Dijkstra, EWD1036 -- 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/