Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932314Ab1DHPgL (ORCPT ); Fri, 8 Apr 2011 11:36:11 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:52752 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932270Ab1DHPgI convert rfc822-to-8bit (ORCPT ); Fri, 8 Apr 2011 11:36:08 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=MyVj92Mh+q2hEUDH5YufWqs38OTEjQlicJXn+1UPxrIhHYON6SC4FhncTCqgRbA+CG YXTP3o0cE5IDEe7zMR9gGwgCQjbz1C6j5fcQJzg1p45ivofQ4CgR33zPjYlWbfl9elwI +75jRdRADeygp4fkFhwp67/gbm3PIJhmQRB9E= MIME-Version: 1.0 In-Reply-To: References: Date: Fri, 8 Apr 2011 17:36:06 +0200 Message-ID: Subject: Re: Endless print of uhci_result_common: failed with status 440000 From: Zdenek Kabelac To: Alan Stern Cc: USB list , Linux Kernel Mailing List Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4574 Lines: 104 2011/4/8 Alan Stern : > On Fri, 8 Apr 2011, Zdenek Kabelac wrote: > >> Hi >> >> While debugging resume problem with Intel HW I've been hitting problem >> with endless print of ?usb 1.1 error message on my T61. >> (See my other similar post >> http://marc.info/?l=linux-kernel&m=130221292724436&w=2) > > This is essentially the same problem. > >> This time the problem is generated by Bluetooth device. >> >> Often just only several messages are printed - and then machine >> suspend - so the log usually contains only several such message - if >> at all - however today with debugging and serial console logging - >> I've seen several times - that suspend resulted in endless unbreakable >> loop. >> >> As a workaround - one could just disable BT device: >> "echo disable >/proc/acpi/ibm/bluetooth" > > ... > >> Googling it - seems it's common issue of this BT chipset - but I think >> is should not cause suspend deadlock ?? > > Are you sure anything is deadlocked? ?What happens if you disable > CONFIG_USB_DEBUG? > Ok - I've disabled this config option - now kernel writes this: (when I keep bt device enabled) usb 3-1: USB disconnect, device number 2 btusb_bulk_complete: hci0 urb ffff88012b94ca50 failed to resubmit (19) btusb_intr_complete: hci0 urb ffff88012b94c000 failed to resubmit (19) btusb_bulk_complete: hci0 urb ffff88012b94c948 failed to resubmit (19) btusb_send_frame: hci0 urb ffff880113dd0528 submission failed ------------[ cut here ]------------ WARNING: at lib/debugobjects.c:262 debug_print_object+0x7c/0x8d() Hardware name: 6464CTO ODEBUG: free active (active state 0) object type: timer_list hint: hci_cmd_timer+0x0/0x46 [bluetooth] Modules linked in: hidp ip6table_filter systemd[1]: Service bluetooth.target is not needed anymore. Stopping. ip6_tables ebtable_nat ebtables xt_CHECKSUM iptable_mangle tun bridge ipv6 stp llc sunrpc rfcomm acpi_cpufreq freq_table mperf bnep xt_physdev ipt_MASQUERADE iptable_nat nf_nat snd_hda_codec_analog arc4 iwl3945 snd_hda_intel snd_hda_codec snd_hwdep r852 snd_seq sm_common snd_seq_device microcode btusb nand iwl_legacy nand_ids r592 nand_ecc memstick mtd snd_pcm mac80211 i2c_i801 joydev iTCO_wdt bluetooth iTCO_vendor_support cfg80211 thinkpad_acpi e1000e snd_timer rfkill snd_page_alloc wmi snd soundcore virtio_net kvm_intel kvm uinput sdhci_pci yenta_socket sdhci mmc_core i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan] Pid: 21, comm: khubd Not tainted 2.6.39-0.rc2.git0.0.fc16.x86_64 #1 Call Trace: [] warn_slowpath_common+0x83/0x9b [] warn_slowpath_fmt+0x46/0x48 [] debug_print_object+0x7c/0x8d [] ? hci_send_acl+0x27c/0x27c [bluetooth] [] debug_check_no_obj_freed+0x96/0x175 [] ? bt_host_release+0x16/0x18 [bluetooth] [] slab_free_hook+0x6b/0x74 [] kfree+0x8e/0xf2 [] bt_host_release+0x16/0x18 [bluetooth] [] device_release+0x4c/0x81 [] kobject_release+0x11d/0x154 [] ? kobject_del+0x36/0x36 [] kref_put+0x43/0x4d [] kobject_put+0x45/0x49 [] put_device+0x17/0x19 [] hci_free_dev+0x26/0x2a [bluetooth] [] btusb_disconnect+0xbd/0xc6 [btusb] [] usb_unbind_interface+0x5c/0x124 [] __device_release_driver+0x7c/0xd5 [] device_release_driver+0x25/0x32 [] bus_remove_device+0xc4/0xd4 [] device_del+0x13c/0x18a [] usb_disable_device+0x8c/0x178 [] usb_disconnect+0xd0/0x135 [] hub_thread+0x741/0x119d [] ? trace_hardirqs_on+0xd/0xf [] ? __init_waitqueue_head+0x4b/0x4b [] ? usb_remote_wakeup+0x64/0x64 [] kthread+0xa8/0xb0 [] kernel_thread_helper+0x4/0x10 [] ? retint_restore_args+0x13/0x13 [] ? __init_kthread_worker+0x5a/0x5a [] ? gs_change+0x13/0x13 ---[ end trace a7aecbf020e621f2 ]--- PM: Syncing filesystems ... done. PM: Preparing system for mem sleep Zdenek -- 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/