From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261449AbUCQNvk (ORCPT ); Wed, 17 Mar 2004 08:51:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261462AbUCQNvk (ORCPT ); Wed, 17 Mar 2004 08:51:40 -0500 Received: from uh02.cern.ch ([137.138.53.31]:40064 "EHLO four09.here.local") by vger.kernel.org with ESMTP id S261455AbUCQNvi (ORCPT ); Wed, 17 Mar 2004 08:51:38 -0500 To: linux-kernel@vger.kernel.org Subject: USB oops on Thinkpad Message-Id: From: Anton Empl Date: Wed, 17 Mar 2004 14:51:37 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, this is not to complain but rather to report and try to sort out a problem experienced with the 2.6.x kernel for quite a long time. I am not a kernel expert so please forgive any not helpful statements here. Also, the hardware used is a Thinkpad T30 (2366-96U) laptop and all might just be specific to that system. Since this system only has USB1 available internally I purchased a PCMCIA USB2 hub (ATEN USB 2.0 2 Port Host Control Card: PU-212). Inserting this card into a running kernel about every other time locks up the system. The lockup is more likely if the card is inserted longer after system start. Here's a transcript (by hand) of the oops: *pde= 00000000 Oops: 0002 [#1] CPU: 0 EIP: 0060: [] Not tainted EFLAGS: 00010296 EIP is at end_unlink_async+0x1a/0xf6 [ehci_hcd] Process usb.agent Call trace: ehci_work ehci_irq usb_hcd_irq handle_IRQ_event do_IRQ common_interrupt kernel panic: fatal exception in interrupt In interrupt handler - not syncing I can certainly provide more information but the problems described above are rather independent of the actual details of building the kernel and rather stable. Please cc since I am not subscribed to the list. thanks, Anton.Empl@cern.ch