From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266165AbUBLHI5 (ORCPT ); Thu, 12 Feb 2004 02:08:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266218AbUBLHI4 (ORCPT ); Thu, 12 Feb 2004 02:08:56 -0500 Received: from [61.149.139.68] ([61.149.139.68]:30457 "EHLO kapok.exavio.com.cn") by vger.kernel.org with ESMTP id S266165AbUBLHIw (ORCPT ); Thu, 12 Feb 2004 02:08:52 -0500 Date: Thu, 12 Feb 2004 15:12:02 +0800 From: Isaac Claymore To: Linux Kernel list Subject: 2.6.2 hangs with usb flashdisk plugged Message-ID: <20040212071202.GA536@exavio.com.cn> Mail-Followup-To: Isaac Claymore , Linux Kernel list Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.5.1+cvs20040105i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi folks, Every time I plug my usb flashdisk (not sure what you native speakers call it, it's a key-sized 128M usb storage device) into the system, the kernel hangs immediately with no panic message, after spitting a few lines like this: hub 1-0:1.0 over-current change on port 4 hub 1-0:1.0 over-current change on port 6 hub 1-0:1.0 over-current change on port 4 hub 1-0:1.0 over-current change on port 6 It's absolutely reproduceable on 2.6.2, and here's some context info: clay kapok:~ [1028]% uname -a Linux kapok 2.6.2 #1 Thu Feb 12 13:59:28 CST 2004 i686 GNU/Linux clay kapok:~ [1030]% lspci -v 00:1d.0 USB Controller: Intel Corp. 82801DB USB (Hub #1) (rev 02) (prog-if 00 [UHCI]) Subsystem: Intel Corp.: Unknown device 5247 Flags: bus master, medium devsel, latency 0, IRQ 16 I/O ports at e800 [size=32] 00:1d.1 USB Controller: Intel Corp. 82801DB USB (Hub #2) (rev 02) (prog-if 00 [UHCI]) Subsystem: Intel Corp.: Unknown device 5247 Flags: bus master, medium devsel, latency 0, IRQ 19 I/O ports at e880 [size=32] 00:1d.2 USB Controller: Intel Corp. 82801DB USB (Hub #3) (rev 02) (prog-if 00 [UHCI]) Subsystem: Intel Corp.: Unknown device 5247 Flags: bus master, medium devsel, latency 0, IRQ 18 I/O ports at ec00 [size=32] 00:1d.7 USB Controller: Intel Corp. 82801DB USB2 (rev 02) (prog-if 20 [EHCI]) Subsystem: Intel Corp.: Unknown device 5247 Flags: bus master, medium devsel, latency 0, IRQ 23 Memory at ffa7fc00 (32-bit, non-prefetchable) [size=1K] Capabilities: kapok:~ [10]# modprobe usbcore drivers/usb/core/usb.c: registered new driver hub kapok:~ [10]# modprobe ehci-hcd ehci_hcd 0000:00:1d.7: EHCI Host Controller PCI: Setting latency timer of device 0000:00:1d.7 to 64 ehci_hcd 0000:00:1d.7: irq 23, pci mem d027fc00 ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1 PCI: cache line size of 128 is not supported by device 0000:00:1d.7 ehci_hcd 0000:00:1d.7: USB 2.0 enabled, EHCI 1.00, driver 2003-Dec-29 hub 1-0:1.0: USB hub found hub 1-0:1.0: 6 ports detected hub 1-0:1.0: over-current change on port 4 hub 1-0:1.0: over-current change on port 6 To this point, everything goes just fine. But, whenever I plug in my usb flashdisk, the system completely freezes, and nothing responses but the poweroff button. I'm using a vanilla 2.6.2. If additional information is needed to diagnose it, plz let me known. -- Regards, Isaac () ascii ribbon campaign - against html e-mail /\ - against microsoft attachments