Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754182Ab0G1Gu7 (ORCPT ); Wed, 28 Jul 2010 02:50:59 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:44179 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752579Ab0G1Guz (ORCPT ); Wed, 28 Jul 2010 02:50:55 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=B/4oAgUl3+7geFmwrxJe/Jm1NHpAFi3qK+y85In2hvN7VLXNgbUUwT/aEhz0jLKzRH wuqcpFqek86tC7o/hx8NXhvH5/o/mMexN4yS5L6fgGSYQhSFHrioYEalZLjzKVo9LPfG rrWkCdrocxANH1IiBNQ2/ikD+JOO1phL2Fj6k= MIME-Version: 1.0 Date: Wed, 28 Jul 2010 14:50:54 +0800 Message-ID: Subject: BUG: 'Unknown symbol in module' happens after reloading ehci-hcd module From: Ming Lei To: linux-kernel@vger.kernel.org, linux-usb Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 825 Lines: 25 Hi, 'Unknown symbol in module' happens after the actions below: rmmod ehci-hcd modprobe ehci-hcd kernel version: 2.6.35-rc6+gregkh tree+wireless tree dmsg info: [ 689.025428] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 689.025431] Warning! ehci_hcd should always be loaded before uhci_hcd and ohci_hcd, not after [ 689.025434] ehci_hcd: block sizes: qh 104 qtd 96 itd 192 sitd 96 >From source code of ehci-hcd, seems debugfs_create_dir or usb_debug_root in ehci_hcd_init is thought as unknown symbol mistakenly by kernel. -- Lei Ming -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/