Re: Endless print of uhci_result_common: failed with status 440000

From: Zdenek Kabelac
Date: Fri Apr 08 2011 - 11:36:14 EST

2011/4/8 Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>:
> 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
> 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

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 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:
[<ffffffff81056af8>] warn_slowpath_common+0x83/0x9b
[<ffffffff81056bb3>] warn_slowpath_fmt+0x46/0x48
[<ffffffff8125c173>] debug_print_object+0x7c/0x8d
[<ffffffffa023718c>] ? hci_send_acl+0x27c/0x27c [bluetooth]
[<ffffffff8125c961>] debug_check_no_obj_freed+0x96/0x175
[<ffffffffa02438e9>] ? bt_host_release+0x16/0x18 [bluetooth]
[<ffffffff811202ac>] slab_free_hook+0x6b/0x74
[<ffffffff811223a8>] kfree+0x8e/0xf2
[<ffffffffa02438e9>] bt_host_release+0x16/0x18 [bluetooth]
[<ffffffff813160da>] device_release+0x4c/0x81
[<ffffffff8124e89b>] kobject_release+0x11d/0x154
[<ffffffff8124e77e>] ? kobject_del+0x36/0x36
[<ffffffff8124fccf>] kref_put+0x43/0x4d
[<ffffffff8124e6e1>] kobject_put+0x45/0x49
[<ffffffff81315b1b>] put_device+0x17/0x19
[<ffffffffa02389a2>] hci_free_dev+0x26/0x2a [bluetooth]
[<ffffffffa0390cbb>] btusb_disconnect+0xbd/0xc6 [btusb]
[<ffffffff81378b18>] usb_unbind_interface+0x5c/0x124
[<ffffffff8131932e>] __device_release_driver+0x7c/0xd5
[<ffffffff813193ac>] device_release_driver+0x25/0x32
[<ffffffff81318edb>] bus_remove_device+0xc4/0xd4
[<ffffffff81316812>] device_del+0x13c/0x18a
[<ffffffff81376d6e>] usb_disable_device+0x8c/0x178
[<ffffffff8136f6d1>] usb_disconnect+0xd0/0x135
[<ffffffff813716ab>] hub_thread+0x741/0x119d
[<ffffffff81087164>] ? trace_hardirqs_on+0xd/0xf
[<ffffffff810734fc>] ? __init_waitqueue_head+0x4b/0x4b
[<ffffffff81370f6a>] ? usb_remote_wakeup+0x64/0x64
[<ffffffff81072d8d>] kthread+0xa8/0xb0
[<ffffffff814c4ba4>] kernel_thread_helper+0x4/0x10
[<ffffffff814bd254>] ? retint_restore_args+0x13/0x13
[<ffffffff81072ce5>] ? __init_kthread_worker+0x5a/0x5a
[<ffffffff814c4ba0>] ? gs_change+0x13/0x13
---[ end trace a7aecbf020e621f2 ]---
PM: Syncing filesystems ... done.
PM: Preparing system for mem sleep

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at