From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754564Ab3KGWho (ORCPT ); Thu, 7 Nov 2013 17:37:44 -0500 Received: from mx1.redhat.com ([209.132.183.28]:31600 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752622Ab3KGWhg (ORCPT ); Thu, 7 Nov 2013 17:37:36 -0500 Date: Thu, 7 Nov 2013 17:37:28 -0500 From: Dave Jones To: linux-usb@vger.kernel.org Cc: Linux Kernel Subject: usb-serial lockdep trace in linus' current tree. Message-ID: <20131107223728.GA18157@redhat.com> Mail-Followup-To: Dave Jones , linux-usb@vger.kernel.org, Linux Kernel MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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 Seeing this since todays USB merge. WARNING: CPU: 0 PID: 226 at kernel/lockdep.c:2740 lockdep_trace_alloc+0xc5/0xd0() DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags)) Modules linked in: usb_debug(+) kvm_intel kvm crct10dif_pclmul crc32c_intel ghash_clmulni_intel microcode(+) pcspkr serio_raw CPU: 0 PID: 226 Comm: systemd-udevd Not tainted 3.12.0+ #112 ffffffff81a22d3d ffff88023cde5670 ffffffff8171a8e8 ffff88023cde56b8 ffff88023cde56a8 ffffffff8105430d 0000000000000046 00000000000080d0 0000000000000010 0000000000000001 ffff880244407a80 ffff88023cde5708 Call Trace: [] dump_stack+0x4e/0x82 [] warn_slowpath_common+0x7d/0xa0 [] warn_slowpath_fmt+0x4c/0x50 [] lockdep_trace_alloc+0xc5/0xd0 [] __kmalloc+0x53/0x350 [] ? xhci_urb_enqueue+0xb7/0x610 [] ? debug_dma_mapping_error+0x7c/0x90 [] xhci_urb_enqueue+0xb7/0x610 [] usb_hcd_submit_urb+0xa6/0xae0 [] ? native_sched_clock+0x24/0x80 [] ? trace_hardirqs_off_caller+0x1f/0xc0 [] ? native_sched_clock+0x24/0x80 [] ? trace_hardirqs_off_caller+0x1f/0xc0 [] ? get_lock_stats+0x19/0x60 [] ? put_lock_stats.isra.28+0xe/0x40 [] usb_submit_urb+0x1f9/0x470 [] usb_serial_generic_write_start+0xf5/0x210 [] usb_serial_generic_write+0x70/0x90 [] usb_console_write+0xc7/0x220 [] call_console_drivers.constprop.23+0xa5/0x1e0 [] console_unlock+0x40c/0x460 [] register_console+0x12c/0x390 [] usb_serial_console_init+0x22/0x40 [] usb_serial_probe+0xfea/0x10e0 [] ? native_sched_clock+0x24/0x80 [] ? trace_hardirqs_off_caller+0x1f/0xc0 [] ? get_lock_stats+0x19/0x60 [] ? __mutex_unlock_slowpath+0xed/0x1a0 [] ? trace_hardirqs_on_caller+0x115/0x1e0 [] ? trace_hardirqs_on+0xd/0x10 [] usb_probe_interface+0x1cf/0x300 [] driver_probe_device+0x87/0x390 [] __driver_attach+0x93/0xa0 [] ? __device_attach+0x40/0x40 [] bus_for_each_dev+0x6b/0xb0 [] driver_attach+0x1e/0x20 [] usb_serial_register_drivers+0x29e/0x580 [] ? 0xffffffffa0004fff [] usb_serial_module_init+0x1e/0x1000 [usb_debug] [] do_one_initcall+0xf2/0x1a0 [] ? set_memory_nx+0x43/0x50 [] load_module+0x1fd2/0x26a0 [] ? store_uevent+0x40/0x40 [] SyS_finit_module+0x86/0xb0 [] tracesys+0xdd/0xe2 ---[ end trace ee033a3c9fd6263b ]---