From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262982AbTJ0Pus (ORCPT ); Mon, 27 Oct 2003 10:50:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263076AbTJ0Pus (ORCPT ); Mon, 27 Oct 2003 10:50:48 -0500 Received: from citrine.spiritone.com ([216.99.193.133]:16070 "EHLO citrine.spiritone.com") by vger.kernel.org with ESMTP id S262982AbTJ0Puo (ORCPT ); Mon, 27 Oct 2003 10:50:44 -0500 Date: Mon, 27 Oct 2003 07:50:39 -0800 From: "Martin J. Bligh" To: linux-kernel Subject: [Bug 1430] New: SysFS oops when rmmod'ing uhci-hcd after resuming from suspend Message-ID: <605230000.1067269839@[10.10.2.4]> X-Mailer: Mulberry/2.2.1 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org http://bugme.osdl.org/show_bug.cgi?id=1430 Summary: SysFS oops when rmmod'ing uhci-hcd after resuming from suspend Kernel Version: 2.6.0-test9 Status: NEW Severity: normal Owner: mochel@osdl.org Submitter: felipe_alfaro@linuxmail.org Distribution: ------------- Fedora Core Test 3. Nothing special with it, since the problems is reproducible by booting with "init=/bin/bash" kernel command line parameter. Hardware Environment: --------------------- Packard Bell Chrom@ laptop: Pentium III 700 Mhz Intel 440BX chipset Texas Instruments PCI4450 CardBus bridge ATI RAGE Mobility M1 AGP video card with 8MB of DRAM 3Com 3CCFE575CT 10/100 CardBus NIC Microsoft Intellimouse Explorer USB mouse Please, see attached "lspci" file for more details. Software Environment: --------------------- Nothing special Problem Description: -------------------- After resuming my laptop from APM suspend, running "rmmod uhci-hcd" causes the following oops: Unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: c017fba6 *pde = 00000000 Oops: 0000 [#1] CPU: 0 EIP: 0060:[] Not tainted EFLAGS: 00010292 EIP is at sysfs_get_dentry+0x16/0x70 eax: 00000000 ebx: cf885acc ecx: ffffffff edx: 00000000 esi: cf8f8280 edi: 00000000 ebp: cf885c24 esp: cf54be38 ds: 007b es: 007b ss: 0068 Process rmmod (pid: 454, threadinfo=cf54a000 task=cf54d900) Stack: c015df9d cf54be54 00000000 00000000 c017fbf5 cf810580 cf885acc cf885c00 c017fc2a cf8f8280 00000000 cf885acc d0879ec0 c01c33f8 cf8f8280 00000000 cf885acc cf885ccc c01c3575 cf885acc cf885b28 cf885acc cf885ccc c01c244d Call Trace: [] lookup_hash+0x1d/0x30 [] sysfs_get_dentry+0x65/0x70 [] sysfs_hash_and_remove+0x2a/0x7d [] device_release_driver+0x28/0x70 [] bus_remove_device+0x55/0xa0 [] device_del+0x5d/0xa0 [] device_unregister+0x13/0x30 [] usb_disconnect+0xd8/0xf0 [usbcore] [] usb_hcd_pci_remove+0x89/0x180 [usbcore] [] pci_device_remove+0x3b/0x40 [] device_release_driver+0x66/0x70 [] driver_detach+0x2b/0x40 [] bus_remove_driver+0x3d/0x80 [] driver_unregister+0x13/0x28 [] pci_unregister_driver+0x16/0x30 [] uhci_hcd_cleanup+0xf/0x5e [uhci_hcd] [] sys_delete_module+0x139/0x1b0 [] do_munmap+0x80/0x190 [] sysenter_past_esp+0x52/0x71 Code: f2 ae f7 d1 49 89 4c 24 0c 31 db 89 d7 49 83 f9 ff 74 24 8d Steps to reproduce: ------------------- This problem can be always reproduced by performing the following steps: 0. Make sure the Intellimouse USB mouse is plugged. 1. Boot into 2.6.0-test9 with "init=/bin/bash" 2. Run "apm -s" 3. Let the system suspend, then resume it from suspension. 4. On the command line, run "rmmod uhci-hcd" 5. The previously described oops will be triggered. Additional information: ----------------------- Please, see the attached "config" file for information on the configuration used to build the kernel.