Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756906Ab3IET3v (ORCPT ); Thu, 5 Sep 2013 15:29:51 -0400 Received: from mx1.redhat.com ([209.132.183.28]:2363 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752498Ab3IET3u (ORCPT ); Thu, 5 Sep 2013 15:29:50 -0400 Date: Thu, 5 Sep 2013 15:29:17 -0400 From: Dave Jones To: Russell King - ARM Linux Cc: Greg KH , Rusty Russell , Linux Kernel Mailing List Subject: Re: kobject: delayed kobject release: help find buggy drivers Message-ID: <20130905192917.GA9339@redhat.com> Mail-Followup-To: Dave Jones , Russell King - ARM Linux , Greg KH , Rusty Russell , Linux Kernel Mailing List References: <20130903185924.046EE660E91@gitolite.kernel.org> <20130903204442.GA22222@redhat.com> <20130903205527.GA6358@kroah.com> <87zjrt6tz4.fsf@rustcorp.com.au> <20130905041338.GA21090@redhat.com> <20130905045745.GA18876@kroah.com> <20130905051945.GB23209@redhat.com> <20130905173540.GK6617@n2100.arm.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130905173540.GK6617@n2100.arm.linux.org.uk> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1128 Lines: 43 On Thu, Sep 05, 2013 at 06:35:40PM +0100, Russell King - ARM Linux wrote: > Dave - thanks for your patience and effort in trying to track this down. > Hopefully the patch below will make it easier. I'm not sure if this is happening because I enabled DEBUG_KOBJECT this time around or not, but now I'm seeing a different trace. (same hang though) serial8250: ttyS0 at I/O 0x3f8 (ieq =4, base_baud = 115200) is 16550A Oops RIP: kobject_release trace: kobject_put cdev_del tty_unregister_device uart_remove_one_port serial8250_register_8250_port pciserial_init_ports pciserial_init_one local_pci_probe pci_device_probe driver_probe_device __driver_attach ? __device_attach bus_for_each_dev driver_attach bus_add_driver ? early_serial_setup driver_register ? early_serial_setup __pci_register_driver serial_pci_driver_init do_one_initcall Trying without serial console next.. -- 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/