Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752862Ab0DVDXn (ORCPT ); Wed, 21 Apr 2010 23:23:43 -0400 Received: from cluster-g.mailcontrol.com ([208.87.233.190]:39644 "EHLO cluster-g.mailcontrol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752290Ab0DVDXm convert rfc822-to-8bit (ORCPT ); Wed, 21 Apr 2010 23:23:42 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Subject: RE: core: workque: workqueue recursion when unplugging usb WCDMA modem on 2.6.32 kernel Date: Wed, 21 Apr 2010 20:15:52 -0700 Message-ID: In-Reply-To: <20100421182747.GB7876@kroah.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: core: workque: workqueue recursion when unplugging usb WCDMA modem on 2.6.32 kernel Thread-Index: AcrhgJX3WtfqbC0eS/apoxqcDt4rFgAR1KTA References: <20100421182747.GB7876@kroah.com> From: "YuPing Luo" To: "Greg KH" Cc: , X-OriginalArrivalTime: 22 Apr 2010 03:22:44.0522 (UTC) FILETIME=[12E700A0:01CAE1CB] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1032 Lines: 24 > > On Tue, Apr 20, 2010 at 11:27:55PM -0700, YuPing Luo wrote: > Is your console on a usb to serial device? Or a serial port? > if usb to serial, can you try .33-rc5 and let us know if that solves the problem? > greg k-h The console is over serial port, while the usb modem exported 2 serial ports . The recursion can be avoided if introducing one dedicated work queue thread for binder ( http://android.git.kernel.org/?p=kernel/common.git;a=blob;f=drivers/stag ing/android/binder.c;h=99010d4b3044b2c33c9d709e334b5be7871b9599;hb=andro id-2.6.32). Thanks Yuping Member of the CSR plc group of companies. CSR plc registered in England and Wales, registered number 4187346, registered office Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, United Kingdom -- 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/