From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932409AbWDBSHA (ORCPT ); Sun, 2 Apr 2006 14:07:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932410AbWDBSHA (ORCPT ); Sun, 2 Apr 2006 14:07:00 -0400 Received: from mail.charite.de ([160.45.207.131]:51608 "EHLO mail.charite.de") by vger.kernel.org with ESMTP id S932409AbWDBSG7 (ORCPT ); Sun, 2 Apr 2006 14:06:59 -0400 Date: Sun, 2 Apr 2006 20:06:57 +0200 From: Ralf Hildebrandt To: linux-kernel@vger.kernel.org Subject: Re: EIP when unloading powernow_k8 on 2.6.16-git18 Message-ID: <20060402180656.GI14747@charite.de> Mail-Followup-To: linux-kernel@vger.kernel.org References: <20060402180205.DA56FE0016DD@knarzkiste.dyndns.org> <20060402162504.GA14747@charite.de> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20060402180205.DA56FE0016DD@knarzkiste.dyndns.org> <20060402162504.GA14747@charite.de> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Ralf Hildebrandt : > Got an EIP today when unloading powernow_k8 on 2.6.16-git18: > > % rmmod powernow_k8 > > resulted in: Also on 2.6.16-git20, I just retried that: Apr 2 20:01:30 knarzkiste kernel: BUG: unable to handle kernel NULL pointer dereference at virtual address 0000002c Apr 2 20:01:30 knarzkiste kernel: printing eip: Apr 2 20:01:30 knarzkiste kernel: ded21b09 Apr 2 20:01:30 knarzkiste kernel: *pde = 00000000 Apr 2 20:01:30 knarzkiste kernel: Oops: 0000 [#1] Apr 2 20:01:30 knarzkiste kernel: PREEMPT Apr 2 20:01:30 knarzkiste kernel: Modules linked in: rt2500 thermal fan button ac battery af_packet ide_scsi sata_sil libata scsi_mod eeprom powernow_k8 freq_table processor saa7134_dvb mt352 saa7134 compat_ioctl32 v4l2_common v4l1_compat ir_kbd_i2c ir_common videodev video_buf_dvb dvb_core video_buf nxt200x dvb_pll tda1004x usbhid usbmouse pcmcia firmware_class 8250_pci tsdev 8250 serial_core 8139too evdev psmouse yenta_socket rsrc_nonstatic pcmcia_core ehci_hcd ohci_hcd snd_atiixp_modem snd_atiixp ide_cd usbcore snd_ac97_codec ati_agp agpgart snd_ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc cdrom unix Apr 2 20:01:30 knarzkiste kernel: CPU: 0 Apr 2 20:01:30 knarzkiste kernel: EIP: 0060:[pg0+513071881/1069720576] Not tainted VLI Apr 2 20:01:30 knarzkiste kernel: EFLAGS: 00010286 (2.6.16-git20 #1) Apr 2 20:01:30 knarzkiste kernel: EIP is at acpi_processor_unregister_performance+0x1e/0x3e [processor] Apr 2 20:01:30 knarzkiste kernel: eax: 00000000 ebx: dd14e800 ecx: 00000001 edx: 00000000 Apr 2 20:01:30 knarzkiste kernel: esi: dd40b8c0 edi: 00000286 ebp: dd40b94c esp: dde18f1c Apr 2 20:01:30 knarzkiste kernel: ds: 007b es: 007b ss: 0068 Apr 2 20:01:30 knarzkiste kernel: Process rmmod (pid: 5299, threadinfo=dde18000 task=dde25570) Apr 2 20:01:30 knarzkiste kernel: Stack: <0>dd647cc0 ded194d6 dd40b8c0 dd40b8e8 c0296132 c03adf88 c034c8b0 c034a3dc Apr 2 20:01:30 knarzkiste kernel: c034a3c0 c02779d7 00000880 ded1b100 00000000 dde18000 c0294fa5 c01366f6 Apr 2 20:01:30 knarzkiste kernel: 65776f70 776f6e72 00386b5f d99754ec c0149d79 b7f51000 dd61ee40 c014b1a8 Apr 2 20:01:30 knarzkiste kernel: Call Trace: Apr 2 20:01:30 knarzkiste kernel: