From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266322AbUFURAE (ORCPT ); Mon, 21 Jun 2004 13:00:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266323AbUFURAE (ORCPT ); Mon, 21 Jun 2004 13:00:04 -0400 Received: from havoc.gtf.org ([216.162.42.101]:23715 "EHLO havoc.gtf.org") by vger.kernel.org with ESMTP id S266330AbUFUQ7w (ORCPT ); Mon, 21 Jun 2004 12:59:52 -0400 Date: Mon, 21 Jun 2004 12:59:46 -0400 From: Jeff Garzik To: Andrew Morton , linux-kernel@vger.kernel.org Cc: Linus Torvalds Subject: oops in 2.6.7-bk-latest Message-ID: <20040621165946.GA14025@havoc.gtf.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This oops snuck into the tree _very_ recently, as it did not happen to me last night when I was testing "kernel too fast" fixes. I was about to try Linus's latest fix, when this hit. Linus, as soon as I reboot into a stable kernel, I'll install BK-latest plus your fix, reboot into that kernel, and give it a test. We see that mke2fs is stuck in disk wait, as expected from this sort of oops: 15690 pts/8 S 0:00 | \_ /bin/sh /sbin/installkernel 2.6.7 arch/i3 15700 pts/8 S 0:00 | \_ /bin/bash /sbin/new-kernel-pkg --mkin 15707 pts/8 S 0:00 | \_ /bin/bash /sbin/mkinitrd -f /boot 15939 pts/8 D 0:00 | \_ mke2fs /dev/loop0 8000 Command being executed at the time: $ sudo installkernel 2.6.7 arch/i386/boot/bzImage System.map loop: loaded (max 8 devices) Unable to handle kernel NULL pointer dereference at virtual address 00000001 printing eip: f88e9611 *pde = 00000000 Oops: 0000 [#1] SMP Modules linked in: loop i810_audio ac97_codec tg3 battery ata_piix libata CPU: 1 EIP: 0060:[] Not tainted EFLAGS: 00010282 (2.6.7) EIP is at do_lo_receive+0x23/0x78 [loop] eax: 00000000 ebx: cae71000 ecx: 00000001 edx: 00000000 esi: 00000000 edi: 00000001 ebp: 00000000 esp: e2203f58 ds: 007b es: 007b ss: 0068 Process loop0 (pid: 15937, threadinfo=e2202000 task=dea5d6b0) Stack: c1713d60 00000001 cae71130 e2202000 cae71124 00000000 00000000 cae71000 cae7112c 00000003 00000001 00000000 f88e96c8 cae71000 00000001 00001000 00000000 00000000 00000000 f7fdd800 cae71000 cae71124 00000000 f88e973b Call Trace: [] lo_receive+0x62/0x88 [loop] [] do_bio_filebacked+0x4d/0x79 [loop] [] loop_thread+0xa4/0x10b [loop] [] loop_thread+0x0/0x10b [loop] [] kernel_thread_helper+0x5/0xb Code: 8b 01 89 44 24 20 8b 41 08 89 44 24 24 8b 44 24 3c 89 44 24